Coral reefs classified by watershed-based pollution threat (grid)

World Resources Institute 2011 Coral reefs classified by watershed-based pollution threat (grid) raster digital data Reefs at Risk Revisited Washington, DC, United States World Resources Institute withheld 2011 Burke, L., K. Reytar, M. Spalding, and A. Perry. Reefs at Risk Revisited. (Washington, DC, USA: World Resources Institute, 2011). withheld rf_sed Reef grid cells have been classified by estimated threat from watershed-based pollution. The threat to reefs from land-based pollutants was modeled for over 300,000 watersheds (catchments) discharging to coastal waters. Relative erosion rates were estimated across the landcape based on slope, land cover type, precipitation, and soil type. Sediment delivery at the river mouth was estimated based on total erosion in the watershed, adjusted for the sediment delivery ratio (based on watershed size) and sediment trapping by dams and mangroves. Sediment plume dispersion was modeled using a linear decay rate from the river mouth and was calibrated against actual sediment plumes observed from satellite data. Values of 0 indicate low threat, 100 indicate medium threat, 1000 indicate high threat. The global indicators developed by the Reefs at Risk Revisited project enable comparative analyses of threats to coral reefs on many scales, and support conservation priority-setting. The Reefs at Risk indicators are a simplification of human activities and complex natural processes, but provide globally-consistent indicators of relative human pressure on coral reefs. The model relies on available data and predicted relationships but cannot capture all aspects of the dynamic interactions between people and coral reefs. The threat indicators gauge current and potential risks associated with human activities. A strength of the analysis lies in its use of regionally consistent data sets to develop globally consistent indicators of human pressure on coral reefs. However, the model is not perfect, and omissions and other errors in the data sets are inevitable. en 2011 publication date Complete None planned -180.000000 180.000000 89.999882 -89.999882 -20037507.067162 20037492.932838 -6363885.331926 6364114.668074 watershed-based pollution coral reefs watershed-based pollution sediment world global None Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable, WRI cannot assume liability for any damages or misrepresentations caused by any inaccuracies in the data, or as a result of the data used on a particular system. WRI makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. World Resources Institute mailing and physical address

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Washington DC 20002 United States reefsatrisk@wri.org 9 am - 5 pm EST World Resources Institute. Reefs at Risk Revisited. 2011. ESRI ArcCatalog 9.3.1.3000 Raster Dataset Raster Grid Cell 25456 80150 1 500.000000 500.000000 16 Upper Left FALSE Default 1 matrix values FALSE GRID row and column 500.000000 500.000000 meters D_WGS_1984 WGS_1984 6378137.000000 298.257224 GCS_WGS_1984 WGS_1984_Cylindrical_Equal_Area VAT_Threat_from_Watershed_Pollution Table 3 OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. VALUE VALUE Integer 4 0 0 0 = Low, 100 = Medium, 1000 = High WRI COUNT COUNT Integer 4 0 0 THREAT_TXT THREAT_TXT String 10 0 0 Level of threat from watershed-based pollution World Resources Institute GIS Data Manager 202-729-7653 202-729-7600 reefsatrisk@wri.org Downloadable Data and Data CD 35.386 35.386 20110629 World Resources Institute GIS Data Manager mailing and physical address

10 G Street NE Suite 800

Washington DC 20002 United States 202-729-7600 reefsatrisk@wri.org FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile en http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile 20110215 15402600 FALSE 20230201 12325100 20230201 12325100 Threat_from_Watershed_Pollution 002 -20037507.067179 20037992.932821 -30241028.041613 30240971.958387 1 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.0.0'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>148923141.92838538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 1.0 150000000 5000 ItemDescription GIS Data Manager World Resources Institute 202-729-7600 10 G Street NE Suite 800 Washington DC 20002 US reefsatrisk@wri.org 20230201 ArcGIS Metadata 1.0 GIS Data Manager World Resources Institute 202-729-7653 202-729-7600 reefsatrisk@wri.org withheld File Geodatabase Raster Dataset Coral reefs classified by watershed-based pollution threat (grid) 2011 World Resources Institute World Resources Institute Washington, DC, United States raster digital data Reefs at Risk Revisited Burke, L., K. Reytar, M. Spalding, and A. Perry. Reefs at Risk Revisited. (Washington, DC, USA: World Resources Institute, 2011). <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Reef grid cells have been classified by estimated threat from watershed-based pollution. The threat to reefs from land-based pollutants was modeled for over 300,000 watersheds (catchments) discharging to coastal waters. Relative erosion rates were estimated across the landcape based on slope, land cover type, precipitation, and soil type. Sediment delivery at the river mouth was estimated based on total erosion in the watershed, adjusted for the sediment delivery ratio (based on watershed size) and sediment trapping by dams and mangroves. Sediment plume dispersion was modeled using a linear decay rate from the river mouth and was calibrated against actual sediment plumes observed from satellite data. Values of 0 indicate low threat, 100 indicate medium threat, 1000 indicate high threat.</SPAN></P></DIV></DIV> The global indicators developed by the Reefs at Risk Revisited project enable comparative analyses of threats to coral reefs on many scales, and support conservation priority-setting. The Reefs at Risk indicators are a simplification of human activities and complex natural processes, but provide globally-consistent indicators of relative human pressure on coral reefs. Burke, Lauretta & Reytar, Katie & Spalding, Mark & Perry, Allison. (2011). Reefs at Risk Revisited. World Resources Institute 10 G Street, NE Suite 800 Washington DC 20002 US reefsatrisk@wri.org 9 am - 5 pm EST world global watershed-based pollution coral reefs watershed-based pollution sediment coral reefs watershed-based pollution sediment global <DIV STYLE="text-align:Left;"><DIV><P><SPAN>Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable, WRI cannot assume liability for any damages or misrepresentations caused by any inaccuracies in the data, or as a result of the data used on a particular system. WRI makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.</SPAN></P></DIV></DIV> Burke, L., K. Reytar, M. Spalding, and A. Perry. Reefs at Risk Revisited. (Washington, DC, USA: World Resources Institute, 2011). 2011 withheld ESRI ArcCatalog 9.3.1.3000 true -180.000000 180.000000 89.999882 -89.999882 publication date 2011 The model relies on available data and predicted relationships but cannot capture all aspects of the dynamic interactions between people and coral reefs. The threat indicators gauge current and potential risks associated with human activities. A strength of the analysis lies in its use of regionally consistent data sets to develop globally consistent indicators of human pressure on coral reefs. However, the model is not perfect, and omissions and other errors in the data sets are inevitable. 1 -179.999989 179.999996 89.000000 -89.000000 3 25456 80150 1 dataset EPSG 6.18.3(9.3.1.2)