ICLUS v1.3 Estimated Percent Impervious Suface for the Conterminous USA


Identification Information:
Citation:
Citation Information:
Originator: U.S. EPA Office of Research & Development (ORD) - National Center for Environmental Assessment (NCEA) - Global Change Research Program(GCRP)
Publication Date: 2010
Title: ICLUS v1.3 Estimated Percent Impervious Suface for the Conterminous USA
Publication Information:
Publication Place: Washington, DC
Publisher: U.S. EPA Office of Research & Development (ORD) - National Center for Environmental Assessment (NCEA) - Global Change Research Program (GCRP)
Online Linkage: http://edg.epa.gov/data/Public/ORD/NCEA/is_iclus_a1.zip
Online Linkage: http://edg.epa.gov/data/Public/ORD/NCEA/is_iclus_a2.zip
Online Linkage: http://edg.epa.gov/data/Public/ORD/NCEA/is_iclus_b1.zip
Online Linkage: http://edg.epa.gov/data/Public/ORD/NCEA/is_iclus_b2.zip
Online Linkage: http://edg.epa.gov/data/Public/ORD/NCEA/is_iclus_bc.zip
Description:
Abstract: Climate and land-use change are major components of global environmental change with feedbacks between these components. The consequences of these interactions show that land use may exacerbate or alleviate climate change effects. Based on these findings it is important to use land-use scenarios that are consistent with the specific assumptions underlying climate-change scenarios. The Integrated Climate and Land-Use Scenarios (ICLUS) project developed land-use outputs that are based on a downscaled version of the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) social, economic, and demographic storylines. ICLUS outputs are derived from a pair of models. A demographic model generates county-level population estimates that are distributed by a spatial allocation model (SERGoM v3) as housing density across the landscape. Land-use outputs were developed for the four main SRES storylines and a baseline ("base case"). The model is run for the conterminous USA and output is available for each scenario by decade to 2100. In addition to housing density at a 1 hectare spatial resolution, this project also generated estimates of impervious surface at a resolution of 1 square kilometer.
Purpose: These data are intended to faciliate assessment of impacts of climate and land-use change for the contiguous USA.
Supplemental Information: http://cfpub.epa.gov/ncea/global/recordisplay.cfm?deid=203458
Time Period of Content:
Currentness Reference: Publication date
Time Period Information:
Range of Dates/Times:
Beginning Date: 2000
Ending Date: 2100
Status:
Progress: Complete
Maintenance and Update Frequency: Irregular
Keywords:
Theme:
Theme Keyword Thesaurus: EPA GIS Keyword Thesaurus
Theme Keyword: Climate
Theme Keyword: Human
Theme Keyword: Impact
Theme Keyword: Land
Theme Keyword: Modeling
Place:
Place Keyword Thesaurus: None
Place Keyword: United States
Access Constraints: None.
Use Constraints: None. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -138.21454852
East Bounding Coordinate: -12.68151645
North Bounding Coordinate: 61.7110157
South Bounding Coordinate: 6.65223303
Security Information:
Security Classification System: FIPS Pub 199
Security Classification: No Confidentiality
Security Handling Description: Standard Technical Controls
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, Global Change Research Program
Contact Person: Phil Morefield
Contact Position: GIS Analyst
Contact Address:
Address Type: mailing
Address: 1200 Pennsylvania Ave, NW Mail Code 8601P
City: Washington
State or Province: DC
Postal Code: 20460
Contact Voice Telephone: (703) 308-8135
Contact Electronic Mail Address: morefield.philip@epa.gov
Contact Instructions: http://www.epa.gov/ncea/global
Data Quality Information:
Logical Consistency Report: Tests for integrity have not been performed.
Completeness Report: Features represented have not been tested for completeness
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: Data were collected using methods that have unknown accuracy (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 10). For more information, please see EPA's NGDP at http://epa.gov/geospatial/policies.html)
Lineage:
Process Step:
Process Date: 20110308
Process Description: Metadata Corrected
Spatial Data Organization Information:
Raster Object Information:
Raster Object Type: Grid Cell
Row Count: 2925
Column Count: 4632
Vertical Count: 1
Spatial Reference Information:
Horizontal Coordinate System Definition:
Planar:
Map Projection:
Map Projection Name: Albers Conical Equal Area
Albers Conical Equal Area:
Standard Parallel: 29.500000
Standard Parallel: 45.500000
Longitude of Central Meridian: -96.000000
Latitude of Projection Origin: 23.000000
False Easting: 0.000000
False Northing: 0.000000
Planar Coordinate Information:
Planar Coordinate Encoding Method: row and column
Planar Distance Units: meters
Coordinate Representation:
Abscissa Resolution: 1000.000000
Ordinate Resolution: 1000.000000
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257222
Entity and Attribute Information:
Overview Description:
Entity and Attribute Overview: Pixel values are projected estimates of percent imperviousness. These forecasts were statistically modeled based on the relationship between housing density and imperviousness using data from the U.S. Census Bureau and the 2001 National Land Cover Database.
Entity and Attribute Detail Citation: http://cfpub.epa.gov/ncea/global/recordisplay.cfm?deid=203458
Distribution Information:
Resource Description: Downloadable Data
Distribution Liability: Although these data have been processed successfully on a computer system at the Environmental Protection Agency, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The U.S. Environmental Protection Agency shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Distributor:
Contact Information:
Contact Person Primary:
Contact Organization: U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, Global Change Research Program
Contact Person: Phil Morefield
Contact Position: GIS Analyst
Contact Address:
Address Type: mailing
Address: 1200 Pennsylvania Ave, NW Mail Code 8601P
City: Washington
State or Province: DC
Postal Code: 20460
Contact Voice Telephone: (703) 308-8135
Contact Electronic Mail Address: morefield.philip@epa.gov
Contact Instructions: http://www.epa.gov/ncea/global
Metadata Reference Information:
Metadata Date: 20100921
Metadata Future Review Date: 20140921
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, Global Change Research Program
Contact Person: Phil Morefield
Contact Position: GIS Analyst
Contact Address:
Address Type: mailing
Address: 1200 Pennsylvania Ave, NW Mail Code 8601P
City: Washington
State or Province: DC
Postal Code: 20460
Contact Voice Telephone: (703) 308-8135
Contact Electronic Mail Address: morefield.philip@epa.gov
Contact Instructions: http://www.epa.gov/ncea/global