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BLM REA MIR 2011 AG C Chinook HUC12 poly


Identification Information:
Citation:
Citation Information:
Originator: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Publication Date: 20090101
Publication Time: unknown
Title: BLM REA MIR 2011 AG C Chinook HUC12 poly
Geospatial Data Presentation Form: vector digital data
Publication Information:
Publication Place: Fort Worth, Texas
Publisher: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Online Linkage: https://landscape.blm.gov/MIR_2011_layerpackages/MIR_AG_C_Chinook_HUC12_poly.lpk
Description:
Abstract: This dataset 6th level HUC watersheds that intersect with the Chinook distribution in the middle rockies ecoregion.
Purpose: This data was created for use in the BLM REA analysis for the in the Middle Rockies Ecoregion. This data set contains 6th level HUC watersheds that intersect with Chinook Distribution.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19800101
Ending Date: unknown
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -114.678806375
East Bounding Coordinate: -108.355330502
North Bounding Coordinate: 47.8353267757
South Bounding Coordinate: 43.9401253182
Keywords:
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Category
Theme Keyword: inlandWaters
Theme Keyword: biota
Theme:
Theme Keyword Thesaurus: BLM-Theme
Theme Keyword: Hydrology
Theme Keyword: Wildlife
Theme Keyword: Geospatial
Theme:
Theme Keyword Thesaurus: BLM-REA
Theme Keyword: MIR 2011
Theme Keyword: Middle Rockies
Place:
Place Keyword Thesaurus: BLM-State
Place Keyword: Idaho
Place Keyword: Montana
Place Keyword: South Dakota
Place Keyword: Wyoming
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: DOI
Theme Keyword: Bureau of Land Management
Theme Keyword: BLM
Theme Keyword: Rapid Ecoregional Assessment
Theme Keyword: REA
Theme:
Theme Keyword Thesaurus: None
Theme Keyword: HUC
Theme Keyword: Hydrologic Unit Code
Theme Keyword: Sub-region
Theme Keyword: boundaries
Theme Keyword: Basin
Theme Keyword: Subwatershed
Theme Keyword: Hydrologic Units
Theme Keyword: Sub-basin
Theme Keyword: Watershed Boundary Dataset
Theme Keyword: WBD
Theme Keyword: Watershed Boundaries
Theme Keyword: Region
Theme Keyword: Watershed
Theme Keyword: HUC12
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Categories
Theme Keyword: boundaries
Place:
Place Keyword Thesaurus: None
Place Keyword: United States
Place Keyword: United States of America
Place Keyword: USA
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: SAIC
Contact Person: SAIC GIS Lead
Contact Address:
Address Type: physical
Address: 13397 Lakefront Drive Suite 100
City: Earth City
State or Province: Missouri
Postal Code: 63045
Country: US
Contact Voice Telephone: 314 770 3046
Contact Position: Unknown
Contact Electronic Mail Address: Unknown
Data Set Credit: Funding and support for the Watershed Boundary Dataset (WBD) were provided by the Natural Resources Conservation Service, the Environmental Protection Agency, and the United States Geological Survey. Representatives from the U.S. Geological Survey and Environmental Protection Agency contributed a substantial amount of time and salary towards quality review and updating of the dataset in order to meet the Federal Standards for Delineation of Hydrologic Unit Boundaries.
Native Data Set Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.5.4400
Access Constraints: None, these data are considered public domain
Use Constraints: These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived, and both scale and accuracy may vary across the data set. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. These data are neither legal documents nor land surveys, and must not be used as such. Official records may be referenced at most BLM offices. Please report any errors in the data to the BLM office for which it was obtained. The BLM should be cited as the data source in any products derived from these data. Any Users wishing to modify the data should describe the types of modifications they have performed. The User should not misrepresent the data, nor imply that changes made were approved or endorsed by BLM. This information may be updated without notification.
Data Quality Information:
Attribute Value Accuracy Information:
Attribute Accuracy Report: 10% of the attributes were visually reviewed. The accuracy of this data is dependent on the level of detail of the source material and the interpretation procedures for capturing that source.
Logical Consistency Report: There are no unclosed polygons, intersections without nodes, or polygons without labels or with more than one label. The ArcGIS geodatabase topology tools were used to make corrections using 11 rules including no gaps, no overlaps, identify cooresponding linework for every polygon boundary, and remove duplicate lines with the same beginning and ending nodes. Geoprocessing steps in models were quality checked to ensure spatial units. Rasters were aligned using a snap raster and edges defined with ecoregion boundaries.
Completeness Report: All fields for all polygons are attributed. Some polygons in the Ncontrb_a field might have a 0 value. Data are complete for the respective contract.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: The WBD was produced using Digital Raster Graphics (DRG's) as the source map. Data completeness for DRG files reflects content of the source graphic and may therefore be reflected in the completeness and accuracy of the WBD. The map was digitized from USGS 1:24,000-scale digital raster graphic base maps, with an inherited error of +/- 40 feet according to the USGS National Map Accuracy Standards. It is estimated that any errors detected were less than 10%. It should also be noted that while general rules of hydrology were used (i.e. natural water flow is downhill), the locations of boundaries is still somewhat subjective as the 1:24,000-scale DRG's do not always provide enough information for identifying the location of the boundaries.
Vertical Positional Accuracy:
Vertical Positional Accuracy Report: N/A
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey
Publication Date: unknown
Title: National Hydrography Dataset
Online Linkage: http://nhd.usgs.gov/data.html
Source Scale Denominator: 24000
Type of Source Media: onLine
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: unknown
Source Currentness Reference: map delineation
Source Citation Abbreviation: NHD
Source Contribution: GIS coverage used for reference in watershed boundary delineation
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey
Publication Date: unknown
Title: USGS 7.5 Minute Topographic Quadrangle Sheets
Geospatial Data Presentation Form: map
Source Scale Denominator: 24000
Type of Source Media: hardcopyPaper
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: unknown
Source Currentness Reference: map delineation
Source Citation Abbreviation: USGS1
Source Contribution: hydrologic unit map delineation and digitize map
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey
Publication Date: unknown
Title: 250K Hydrologic Unit Boundaries
Source Scale Denominator: 250000
Type of Source Media: onLine
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: unknown
Source Currentness Reference: ground condition
Source Citation Abbreviation: USGS2
Source Contribution: Reference for 8-digit watershed delineation
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey
Publication Date: unknown
Title: Digital Orthophoto Quads
Geospatial Data Presentation Form: raster digital data
Online Linkage: http://datagateway.nrcs.usda.gov
Source Scale Denominator: 24000
Type of Source Media: onLine
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: unknown
Source Currentness Reference: publication date
Source Citation Abbreviation: USGSDOQ
Source Contribution: GIS raster coverage used for reference in watershed boundary delineation
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey
Publication Date: unknown
Title: Digital Raster Graphic
Online Linkage: http://datagateway.nrcs.usda.gov
Source Scale Denominator: 24000
Type of Source Media: onLine
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 19990101
Source Currentness Reference: map delineation
Source Citation Abbreviation: USGSDRG
Source Contribution: hydrologic unit map delineation and digitize map
Process Step:
Process Description: 6th Level HUC watersheds that intersect with Chinook Distribution.
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Unknown
Contact Person: Unknown
Contact Position: Unknown
Contact Address:
Country: Unknown
Address Type: Unknown
Address: Unknown
City: Unknown
State or Province: Unknown
Postal Code: Unknown
Contact Voice Telephone: Unknown
Process Date: Unknown
Process Step:
Process Description: The original dataset was reviewed by USGS personnel using on-screen techniques with DRG's as the base map. All hydrologic units within the dataset that were under 3,000 acres were dissolved out.
Source Used Citation Abbreviation: USGSDRG
Process Date: 20030101
Process Step:
Process Description: Original dataset attribution was reviewed and revised to reflect the updates and changes made to the dataset. These revisions to the attribution were also made to ensure that the dataset met the Federal Standards for Delineation of Hydrologic Unit Boundaries. The NHD was used during this process to help with the naming and downstream coding of each unit. In some instances there were name hydrologic unit name discrepancies between the NHD and what was printed on the DRG's. In these instances the DRG's were used instead of the NHD.
Source Used Citation Abbreviation: USGSDRG
Source Used Citation Abbreviation: NHD
Process Date: 20050101
Source Produced Citation Abbreviation: WBD12
Process Step:
Process Description: The new WBD dataset was reviewed on-screen by USGS, EPA, or NRCS personnel using DRG's and DOQ?s as base maps. Hydrologic Units that were under 10,000 acres (for the 12-digit units) and 40,000 acres (for the 10-digit units) were reviewed and if possible were dissolved out. Along the coastal areas classic watersheds that fell within the federal guidelines size criteria (12-digit: 10,000-40,000 acres, 10-digit: 40,000-250,000 acres) were broken out. If possible the remaining frontals were left as their own units. Frontals that did not meet the size criteria were grouped together with other frontals within the overall 8-digit or 10-digit unit. Hydrologic units what were greater than 40,000 acres (12-digit units) and 250,000 acres (10-digit units) were reviewed. If possible these unit where then broken down into smaller units that met the size criteria. In some cases additional breaks within the unit would not have made sense or have been very useful (example: When the majority of the unit was made up by a major waterbody feature such as a lake or reservoir and the surrounding tributaries were too small to break out as their own unit). In these instances the unit was left big. Source_Used_Citation_Abbreviation: USGSDRG
Source Used Citation Abbreviation: USGSDOQ
Process Date: 20050101
Process Step:
Process Description: Hydrologic units from surrounding states were used to edgematch watershed boundaries.
Source Used Citation Abbreviation: NA
Process Date: 20050101
Process Step:
Process Description: First draft of metadata created by Laura Davenport using METADATA Editor in ArcCatalog ver. 9.1 sp.1.
Process Date: 20070124
Process Step:
Process Description: The original hydrologic unit boundaries were hand-digitized on a tablet from the USGS 7.5 minute quadrangles. This process occurred over a span of approximately 20 years.
Source Used Citation Abbreviation: USGS1
Process Date: 20090101
Process Step:
Process Description: Second draft of metadata created by Laura Davenport using METADATA Editor in ArcCatalog ver. 9.2 sp.6.
Process Date: 20090817
Spatial Data Organization Information:
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: GT-polygon composed of chains
Point and Vector Object Count: 77
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geodetic Model:
Semi-major Axis: 6378137.0
Horizontal Datum Name: D North American 1983
Denominator of Flattening Ratio: 298.257222101
Ellipsoid Name: GRS 1980
Planar:
Map Projection:
Albers Conical Equal Area:
False Northing: 0.0
Standard Parallel: 29.5
Standard Parallel: 45.5
False Easting: 0.0
Longitude of Central Meridian: -96.0
Latitude of Projection Origin: 23.0
Map Projection Name: Albers Conical Equal Area
Planar Coordinate Information:
Coordinate Representation:
Abscissa Resolution: 0.0001
Ordinate Resolution: 0.0001
Planar Distance Units: meters
Planar Coordinate Encoding Method: coordinate pair
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: mir_2011.ILMREADBO.MIR_AG_C_Chinook_HUC12_poly
Entity Type Definition: identifies watershed boundaries (as polygons)
Entity Type Definition Source: n/a
Attribute:
Attribute Label: OBJECTID_1
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: OBJECTID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Sequential unique whole numbers that are automatically generated in SDE.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HUC_8
Attribute Definition: Eight Digit Hydrologic Unit Code: A unique 8-digit code from the USGS map series "Hydrologic Unit Maps". The same number was used in every record that pertains to a subwatershed that resides within the same 8-digit sub-basin.Numbers were assigned in an upstream to downstream fashion. Where no downstream/upstream relationship could be determined numbers were assigned in a clockwise fashion.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 01000000
Range Domain Maximum: 99999999
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated/changed by state stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HUC_10
Attribute Definition: Ten Digit Hydrologic Unit Code: This field provides a unique 10-digit code for each watershed. This same number was used in every record that pertains to a subwatershed that resides within the same 10-digit watershed. Numbers were assigned in an upstream to downstream fashion. Where no downstream/upstream relationship could be determined numbers were assigned in a clockwise fashion.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0100000000
Range Domain Maximum: 9999999999
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated/changed by state stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HUC_12
Attribute Definition: Twelve Digit Hydrologic Unit Code: This field provides a unique 12-digit code for each subwatershed. Numbers were assigned in an upstream to downstream fashion. Where no downstream/upstream relationship could be determined numbers were assigned in a clockwise fashion.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 010000000000
Range Domain Maximum: 999999999999
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated/changed by state stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: ACRES
Attribute Definition: Area of subwatershed including non-contributing areas calculated to acres as a whole number, no decimals. The "Acres" field was calculated from the "Area" field.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 2500000
Attribute Units of Measure: Acres
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Calculated in Geographic NAD83.
Attribute Value Accuracy Explanation: Area of subwatershed including non-contributing areas calculated to acres as a whole number, no decimals. The "Acres" field was calculated from the "Area" field.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: NCONTRB_A
Attribute Definition: Non-Contributing Area: Drainage areas that do not flow toward the outlet of any hydrologic unit are considered non-contributing. If a non-contributing area is on the boundary between two or more hydrologic units, the non-contributing area is associated with the hydrologic unit adjacent to the low point on the boundary. This attribute should be the total of the non-contributing areas within a hydrologic unit calculated in acres.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 2500000
Attribute Units of Measure: Acres
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually from acres field as determined by state stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_10_GNIS
Attribute Definition: The Watershed GNIS Feature Identification Number attribute is the 6- or 7-digit Feature Identification Number from the Geographic Names Information System (GNIS) that correspond to the official names used in the hydrologic unit name. Each officially recognized name in the country has a unique Feature Identification Number. If a hydrologic unit name includes two or more feature names, this field contains two GNIS feature numbers separated by a space.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 000001
Range Domain Maximum: 9999999
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: HU_12_GNIS
Attribute Definition: The Subwatershed GNIS Feature Identification Number attribute is the 6- or 7-digit Feature Identification Number from the Geographic Names Information System (GNIS) that corresponds to the official names used in the hydrologic unit name. Each officially recognized name in the country has a unique Feature Identification Number. If a hydrologic unit name includes two or more feature names, this field contains two GNIS feature numbers separated by a space.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 000001
Range Domain Maximum: 9999999
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: HU_10_DS
Attribute Definition: Fifth Level Downstream Hydrologic Unit Code: This field has the 10-digit code of the 5th level hydrologic unit that is receiving the majority of the flow from the watershed that the 6th level HU falls within. Outlets created by ditching or other artificial drainage were not considered for this field. If an HU flows into an ocean or the Gulf of Mexico, this field was populated with "OCEAN" and if a HU flows into one of the Great Lakes the term "LAKE" was used. If a HU flows across international borders, "CANADA" or "MEXICO" was used depending on which country the HU drains into. If an HU is a closed basin, then the term "CLOSED BASIN"was used.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0100000000
Range Domain Maximum: 9999999999
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_10_NAME
Attribute Definition: Fifth Level Hydrologic Unit Name: This field used officially recognized names only. This field was populated by following the directions in subsection 6.3 "Watershed and Subwatershed Naming Protocol". The name used to attribute the watershed was used only once within a 4th level unit.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Unrepresentable Domain: Character String
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_10_MOD
Attribute Definition: Fifth Level Hydrologic Unit Modifications: This field identifies any type of modifications to natural overland flow that alters the location of the hydrologic unit boundary for a 10-digit watershed. This field shows the most significant to least significant modification(s) to the watershed boundary. One or more of the following abbreviations was used.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: SC
Enumerated Domain Value Definition: Stormwater Canal or Drainage Canal
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: ID
Enumerated Domain Value Definition: Irrigation Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: IT
Enumerated Domain Value Definition: Interbasin Transfer
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: BC
Enumerated Domain Value Definition: Barge Canal or Navigation Canal
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: SD
Enumerated Domain Value Definition: Stormwater Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: PD
Enumerated Domain Value Definition: Pipe Diversion
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: CD
Enumerated Domain Value Definition: Channel Diversion
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: NC
Enumerated Domain Value Definition: Noncontributing Area
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: KA
Enumerated Domain Value Definition: Karst
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: LE
Enumerated Domain Value Definition: Levee
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: NM
Enumerated Domain Value Definition: No Modifications
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: OC
Enumerated Domain Value Definition: Overflow Channel or Flume
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: DM
Enumerated Domain Value Definition: Dam at outlet or HU boundary
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: GC
Enumerated Domain Value Definition: General Canal/Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: PS
Enumerated Domain Value Definition: Pumping Station
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: DD
Enumerated Domain Value Definition: Drainage Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: SI
Enumerated Domain Value Definition: Siphon
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: AD
Enumerated Domain Value Definition: Aqueduct
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: RS
Enumerated Domain Value Definition: Reservoir
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: TF
Enumerated Domain Value Definition: Transportation Feature (road, railroad, docks etc.)
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: GF
Enumerated Domain Value Definition: Ground-Water Flow
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: MA
Enumerated Domain Value Definition: Mining Activity
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: UA
Enumerated Domain Value Definition: Urban Area
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: GL
Enumerated Domain Value Definition: Glacier
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: IF
Enumerated Domain Value Definition: Ice Field
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: OF
Enumerated Domain Value Definition: Overbank Flow
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: OT
Enumerated Domain Value Definition: Other
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_10_TYPE
Attribute Definition: Fifth Level Hydrologic Unit Type: This field was populated with the hydrologic unit type from the list provided that most closely identifies the watershed.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: S
Enumerated Domain Value Definition: "Standard" hydrologic unit - Any land HU with drainage flowing to a single outlet point, excluding non-contributing areas. This includes areas or small triangular wedges between adjacent HU's that remain after classic hydrologic units are delineated. Some examples include "true", "classic", "composite", and "remnant" hydrologic units.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: C
Enumerated Domain Value Definition: "Closed Basin" hydrologic unit - A drainage area that is 100% non-contributing. This means all surface flow is internal, no overland flow leaves the hydrologic unit through the outlet point.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: F
Enumerated Domain Value Definition: "Frontal" hydrologic unit - Areas along the coastline of lakes, oceans, bays, etc. that have more than one outlet. These HU's are predominantly land with some water areas at or near the outlet(s).
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: W
Enumerated Domain Value Definition: "Water" hydrologic unit - Hydrologic units that are predominantly water with adjacent land areas, ex. lake, easturies, harbors.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: I
Enumerated Domain Value Definition: "Island" hydrologic unit - A hydrologic unit that is one or more islands and adjacent water out to the toe of the shore face.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: U
Enumerated Domain Value Definition: "Unclassified" hydrologic unit - A hydrologic unit that can't be defined or doesn't fit into one of the types that have been listed.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_12_DS
Attribute Definition: Sixth Level Downstream Hydrologic Unit Code: This field was populated with the 12-digit code of the 6th level hydrologic unit that is receiving the majority of the flow from the subwatershed. Outlets created by ditching or other artificial drainage were not considered for this field. If a HU flows into an ocean or the Gulf of Mexico it was populate with "OCEAN" and if a HU flows into one of the Great Lakes the term "LAKE" was used. If a HU flows across international borders, "CANADA" or "MEXICO" was used depending on which country the HU drains into. If an HU is a closed basin, this field was populated with the term "CLOSED BASIN".
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 010000000000
Range Domain Maximum: 999999999999
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_12_NAME
Attribute Definition: Sixth Level Hydrologic Unit Name: Officially recognized names were used in this field. This field was populated by following the directions in subsection 6.3 "Watershed and Subwatershed Naming Protocol". The name used to attribute the subwatershed was used only once within a 4th level unit.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Unrepresentable Domain: Character String
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_12_MOD
Attribute Definition: Sixth Level Hydrologic Unit Modifications: This field identifies any type of man-made modification(s) to natural overland flow that alters the location of the hydrologic unit boundary for a 12-digit subwatershed. One or more of the following abbreviations was chosen for this field.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: SC
Enumerated Domain Value Definition: Stormwater Canal or Drainage Canal
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: ID
Enumerated Domain Value Definition: Irrigation Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: IT
Enumerated Domain Value Definition: Interbasin Transfer
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: BC
Enumerated Domain Value Definition: Barge Canal or Navigation Canal
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: SD
Enumerated Domain Value Definition: Stormwater Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: PD
Enumerated Domain Value Definition: Pipe Diversion
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: CD
Enumerated Domain Value Definition: Channel Diversion
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: NC
Enumerated Domain Value Definition: Noncontributing Area
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: KA
Enumerated Domain Value Definition: Karst
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: LE
Enumerated Domain Value Definition: Levee
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: NM
Enumerated Domain Value Definition: No Modifications
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: OC
Enumerated Domain Value Definition: Overflow Channel or Flume
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: DM
Enumerated Domain Value Definition: Dam at outlet or HU boundary
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: GC
Enumerated Domain Value Definition: General Canal/Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: PS
Enumerated Domain Value Definition: Pumping Station
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: DD
Enumerated Domain Value Definition: Drainage Ditch
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: SI
Enumerated Domain Value Definition: Siphon
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: AD
Enumerated Domain Value Definition: Aqueduct
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: RS
Enumerated Domain Value Definition: Reservoir
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: TF
Enumerated Domain Value Definition: Transportation Feature (road, railroad, docks etc.)
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: GF
Enumerated Domain Value Definition: Ground-Water Flow
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: MA
Enumerated Domain Value Definition: Mining Activity
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: UA
Enumerated Domain Value Definition: Urban Area
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: GL
Enumerated Domain Value Definition: Glacier
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: IF
Enumerated Domain Value Definition: Ice Field
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: OF
Enumerated Domain Value Definition: Overbank Flow
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: OT
Enumerated Domain Value Definition: Other
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: HU_12_TYPE
Attribute Definition: Sixth Level Hydrologic Unit Type: This field was populated with the hydrologic unit type from the list provided that most closely identifies the subwatershed.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: S
Enumerated Domain Value Definition: "Standard" hydrologic unit - Any land HU with drainage flowing to a single outlet point, excluding non-contributing areas. This includes areas or small triangular wedges between adjacent HU's that remain after classic hydrologic units are delineated. Some examples include "true", "classic", "composite", and "remnant" hydrologic units.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Enumerated Domain:
Enumerated Domain Value: C
Enumerated Domain Value Definition: "Closed Basin" hydrologic unit - A drainage area that is 100% non-contributing. This means all surface flow is internal, no overland flow leaves the hydrologic unit through the outlet point.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: F
Enumerated Domain Value Definition: "Frontal" hydrologic unit - Areas along the coastline of lakes, oceans, bays, etc. that have more than one outlet. These HU's are predominantly land with some water areas at or near the outlet(s).
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: W
Enumerated Domain Value Definition: "Water" hydrologic unit - Hydrologic units that are predominantly water with adjacent land areas, ex. lake, easturies, harbors.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: I
Enumerated Domain Value Definition: "Island" hydrologic unit - A hydrologic unit that is one or more islands and adjacent water out to the toe of the shore face.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Enumerated Domain:
Enumerated Domain Value: U
Enumerated Domain Value Definition: "Unclassified" hydrologic unit - A hydrologic unit that can't be defined or doesn't fit into one of the types that have been listed.
Enumerated Domain Value Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: META_ID
Attribute Definition: Metadata ID Number: The Metadata ID is a code that identifies which metadata file applies to the line or polygon. In most cases there is only one metadata file. However, in some cases more than one metadata file was used to identify different groups and/or procedures used to produce the lines or polygons. The metadata ID is a 4-character code starting with the 2-letter state postal code, followed by a 2-digit sequence number. For example "OK01", "ID02", etc.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Unrepresentable Domain: Character String
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: STATES
Attribute Definition: The "States" field includes the names of all state(s) that the subwatershed falls within. The 2-digit postal abbreviation in upper case and in alphabetical order was used, separated with a comma.
Attribute Definition Source: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Attribute Domain Values:
Unrepresentable Domain: Character String
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy: Unknown
Attribute Value Accuracy Explanation: Populated manually by data stewards.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: SHAPE
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Beginning Date of Attribute Values: 1990s
Ending Date of Attribute Values: Ongoing
Attribute Value Accuracy Information:
Attribute Value Accuracy Explanation: Edited by state stewards.
Attribute Value Accuracy: Generally +/- 13 meters of real world coordinates.
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: SHAPE_Leng
Attribute:
Attribute Label: mir_2011.ILMREADBO.MIR_AG_C_Chinook_HUC12_poly.Area
Attribute:
Attribute Label: Perimeter
Attribute:
Attribute Label: Hectares
Attribute:
Attribute Label: Shape.area
Attribute:
Attribute Label: Shape.len
Overview Description:
Entity and Attribute Overview: Each hydrologic unit polygon has associated attributes stored in tabular format. An attribute, also called a field or column, is defined by name, type, size, and valid values. For this layer, these attributes are the Hydrologic Unit Codes, Names, Acreage, States crossed, non-contributing area, Downstream unit code, Type, and Modification. ftp://ftp-fc.sc.egov.usda.gov/NCGC/products/watershed/hu-standards.pdf
Entity and Attribute Detail Citation: Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3.
Distribution Information:
Standard Order Process:
Digital Form:
Digital Transfer Option:
Online Option:
Access Instructions: Download from Landscape Approach Data Portal
Computer Contact Information:
Network Address:
Network Resource Name: https://landscape.blm.gov/MIR_2011_layerpackages/MIR_AG_C_Chinook_HUC12_poly.lpk
Digital Transfer Information:
Format Specification: Varies
File Decompression Technique: No compression applied
Format Name: ESRI Layer Package (LPK)
Fees: N/A
Ordering Instructions: Download from Landscape Approach Data Portal
Distribution Liability: The BLM assumes no responsibility for errors or omissions. No warranty is made by the BLM as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data; nor shall the act of distribution to contractors, partners, or beyond, constitute any such warranty for individual or aggregate data use with other data. Although these data have been processed successfully on computers of BLM, no warranty, expressed or implied, is made by BLM regarding the use of these data on any other system, or for general or scientific purposes, nor does the fact of distribution constitute or imply any such warranty. In no event shall the BLM have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of the use or reliance on the geographic data or arising out of the delivery, installation, operation, or support by BLM.
Technical Prerequisites: ESRI ArcGIS software, version 10.0 or greater
Resource Description: Downloadable Data
Available Time Period:
Time Period Information:
Single Date/Time:
Calendar Date: 2016
Distributor:
Contact Information:
Contact Address:
Postal Code: 80225-0047
Address: Building 50, Denver Federal Center
Address: P.O. Box 25047
City: Denver
Address Type: mailing and physical address
State or Province: Colorado
Country: USA
Contact Electronic Mail Address: blm_oc_rea_data_portal_feedback_team@blm.gov
Contact Voice Telephone: Please email
Contact Position: Resource Programs Data Coordinator, OC-530
Contact Organization Primary:
Contact Organization: Bureau of Land Management
Metadata Reference Information:
Metadata Date: 20160907
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center
Contact Person: Steve Nechero
Contact Position: Cartographer, Technology Applications Team Lead
Contact Address:
Address Type: mailing
Address: 501 W. Felix St., Bldg. 23
City: Fort Worth
State or Province: TX
Postal Code: 76115
Country: US
Contact Voice Telephone: 817-509-3366
Contact Facsimile Telephone: 817-509-3469
Contact Electronic Mail Address: Steve.Nechero@ftw.usda.gov
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Review Date: 20130920
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