Gridded Species Distribution, Version 1: Birds of the Americas Original GridsEntry ID: CIESIN_SEDAC_SPECIES_BIRD_ORIG
Abstract: The Original Grids of the Gridded Bird Species Distribution of the Americas are converted 1- kilometer grid cell data in the Geographic Coordinate System (GCS) that cover North America, South America and the Caribbean Islands. The input vector data were created by a consortium led by Natureserve. The grids are produced by the Columbia University Center for International Earth Science Information ... Network (CIESIN). The purpose is provide a gridded version of existing vector maps of bird species distribution at 1- kilometer spatial resolution, which in turn can be used in modeling efforts, wildlife conservation planning, natural resource management, policy-making, biodiversity studies and human-environment interactions.
The data in Band Interleaved by Line (BIL) format are available from the NASA Socioeconomic Data and Applications Center (SEDAC).
Purpose: To provide a gridded version of existing vector maps of bird species distribution at 1- kilometer that preserves the original coding (1=Extant, 2= Possibly present, 3=Probably extinct, 4=Extinct, 5=Extirpated purposely, 6=Occurs on indicated island chain, and 7=Subfossil/fossil).
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Start Date: 2003-01-01Stop Date: 2003-01-31
Latitude Resolution: 5000 m
Longitude Resolution: 5000 m
Vertical Resolution: 0.2 m
ISO Topic Category
Quality This grid cell layer was interpolated from a triangulated irregular network that was generated from slope corrected orthometric heights of Antarctica (refer to metadata record ERS_DTM_TIN_ANT).
These heights were derived using ERS radar altimetry.
The grid cells are 5000 x 5000 metres in size and there are 1081 columns and 964 rows. The ArcGIS spatial analyst extension was used to derive the grid from the triangulated irregular network file . Areas of invalid height in the reliability data set (refer to metadata record ERS_REL_ANT) were used to mask out (assign no data values) to corresponding cells in the grid.
Access Constraints Available in a Polar Stereographic projection with true scale at 71 degrees S.
For access contact the Australian Antarctic Data Centre. Conditions apply.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ERS_DTM_... when using these data.
Data Set Progress
Distribution Media: CD
Distribution Size: 14.7 MB
Distribution Format: ArcInfo GRID
Role: TECHNICAL CONTACT
Phone: +61 3 6232 3577
Fax: +61 3 6232 3351
Email: gis at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Creation and Review Dates
DIF Creation Date: 2003-02-11
Last DIF Revision Date: 2012-09-21