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These layers were created using a combination of ArcGIS\u2019 Image Classification and raster data editing toolsets. 2012 and 2017 were completed by AIS, 2007 was completed by Sanborn. In each case the State provided the vendor with the most current state-wide aerial imagery to develop the impervious surface. A variety of techniques were used for determining whether a pixel was impervious or pervious.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "mapName": "DE_Impervious", "description": "

These layers were created using a combination of ArcGIS\u2019 Image Classification and raster data editing toolsets. 2012 and 2017 were completed by AIS, 2007 was completed by Sanborn. In each case the State provided the vendor with the most current state-wide aerial imagery to develop the impervious surface. A variety of techniques were used for determining whether a pixel was impervious or pervious.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "copyrightText": "FirstMap, Aerial Information Systems, Inc. of Redlands, California (2012, 2017), Sanborn (2007)", "supportsDynamicLayers": true, "layers": [ { "id": 0, "name": "2007 Impervious Surface", "parentLayerId": -1, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 1, "name": "2012 Impervious Surface", "parentLayerId": -1, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 2, "name": "2017 Impervious Surface", "parentLayerId": -1, "defaultVisibility": true, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true } ], "tables": [], "spatialReference": { "wkid": 102100, "latestWkid": 3857, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -20037700, "falseY": -30241100, "xyUnits": 10000, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 }, "singleFusedMapCache": false, "initialExtent": { "xmin": -8517647.267505793, "ymin": 4643167.53248137, "xmax": -8272453.66598295, "ymax": 4843180.53248137, "spatialReference": { "wkid": 102100, "latestWkid": 3857, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -20037700, "falseY": -30241100, "xyUnits": 10000, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "fullExtent": { "xmin": -8437420.96674437, "ymin": 4643167.53248137, "xmax": -8352679.96674437, "ymax": 4843180.53248137, "spatialReference": { "wkid": 102100, "latestWkid": 3857, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -20037700, "falseY": -30241100, "xyUnits": 10000, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "datesInUnknownTimezone": false, "minScale": 0, "maxScale": 0, "units": "esriMeters", "supportedImageFormatTypes": "PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP", "documentInfo": { "Title": "Delaware Impervious Surface", "Author": "", "Comments": "

These layers were created using a combination of ArcGIS\u2019 Image Classification and raster data editing toolsets. 2012 and 2017 were completed by AIS, 2007 was completed by Sanborn. In each case the State provided the vendor with the most current state-wide aerial imagery to develop the impervious surface. A variety of techniques were used for determining whether a pixel was impervious or pervious.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "Subject": "Impervious Surface data layer for 2007, 2012, and 2017 surface conditions. To identify impervious surfaces for the purpose of modeling such as stormwater, and atmospheric pollutant modeling. The dataset is suitable for many planning and modeling purposes.", "Category": "", "Version": "2.6.0", "AntialiasingMode": "Fast", "TextAntialiasingMode": "Force", "Keywords": "United States of America (USA),Mid Atlantic,Delaware (DE),Kent County,New Castle County,Sussex County,Imagery,BaseMaps,EarthCover,Impervious Surface,LandUseLandCover,Structure" }, "capabilities": "Map,Query,Data", "supportedQueryFormats": "JSON, geoJSON, PBF", "exportTilesAllowed": false, "referenceScale": 0.0, "datumTransformations": [ { "geoTransforms": [ { "wkid": 108190, "latestWkid": 108190, "transformForward": true, "name": "WGS_1984_(ITRF00)_To_NAD_1983" } ] }, { "geoTransforms": [ { "wkid": 108190, "latestWkid": 108190, "transformForward": false, "name": "WGS_1984_(ITRF00)_To_NAD_1983" } ] } ], "supportsDatumTransformation": true, "archivingInfo": {"supportsHistoricMoment": false}, "supportsClipping": true, "supportsSpatialFilter": true, "supportsTimeRelation": true, "supportsQueryDataElements": true, "mapUnits": {"uwkid": 9001}, "maxRecordCount": 2000, "maxImageHeight": 4096, "maxImageWidth": 4096, "supportedExtensions": "" }