ArcGIS REST Services Directory

Layer: Development Risk, Contiguous US (ID: 116)

Parent Layer: Near-Term Landscape Factors

Name: Development Risk, Contiguous US

Display Field:

Type: Raster Layer

Geometry Type: null

Description: See metadata (FGDC section) for complete information about this layer - This raster dataset is the result of a subtraction of the classification of raster datasets bhd2030us and bhd2000us. Both are produced using the SERGoM v3 model, they depict housing density for the coterminous US in 2030 and 2000, resp., and are based on 2000 US Census Bureau block (SF1) datasets. (The classication of the subtraction is shown below.) A raster layer that portrays not-developed (and assumed to be undevelopable) called CUS_UPP_100 depicts protected/unprotected lands and Census water polygons. First, Land was removed from blocks (reducing the area of a block, but not its number of housing units -- assuming that private housing units must be on private land) that was public and/or protected in the UNPROTPRIV100 dataset produced by Forest Inventory and Analysis, North Central Research Station, USDA Forest Service -- which is based on the second edition (2001) of the Protected Areas Database, produced by the Conservation Biology Institute. Second, locations of blocks that are identified as water polygons (rivers, lakes, reservoirs, marshes -- basically unbuildable areas) in the US Census Bureau TIGER files were also removed from the blocks. Third, blocks that had no housing units in them AND were dominated (>25% of their area) by developed land use were also not allowed to have any housing density in subsequent years (by removing those cells from the developable layer). The value of 22, 23, and 24 from the USGS's NLCD 2001 was used, then aggregated by a factor of 4 (from 30 m to 120 m cells). Locations where >25% comm/ind/trans were found to create NLCD_COMMIND dataset. 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. 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. The BLM should be cited as the data source in any products derived from these data.

Copyright Text: Dr. David M. Theobald; Colorado State University

Default Visibility: false

MaxRecordCount: 0

Supported Query Formats: JSON, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: false

Supports Statistics: false

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Drawing Info: Advanced Query Capabilities:
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HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Type ID Field: null

Fields: None

Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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