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The surface area draining to each debris flow traversal corridor is delineated from the confluence of the corridor with a fish-bearing stream. The delineated area defines a subbasin within the much larger 4th-field HUC analysis basin. Within each subbasis, the initiation sites for debris flows that can carry material to the fish-bearing stream at the subbasin mouth are mapped. These are the sediment source areas for that subbasin. Within each subbasin, the highest 33% of the mean annual deliveered sediment (source areas) is defined as the \"Sediment Source Areas\".<\/SPAN><\/P><\/DIV>", "AntialiasingMode": "Fast", "Title": "Designated Sediment Source Area", "Author": "", "TextAntialiasingMode": "Force", "Subject": "Within Debris Flow Traversal Area Subbasins, the sediment source area zones that contribute the highest 33% of the proportion of mean annual delivered sediment and are greater than ΒΌ acre in size are classified as \u201cDesignated Sediment Source Areas\"." }, "maxImageWidth": 4096, "maxRecordCount": 2000, "description": "

The surface area draining to each debris flow traversal corridor is delineated from the confluence of the corridor with a fish-bearing stream. The delineated area defines a subbasin within the much larger 4th-field HUC analysis basin. Within each subbasis, the initiation sites for debris flows that can carry material to the fish-bearing stream at the subbasin mouth are mapped. These are the sediment source areas for that subbasin. Within each subbasin, the highest 33% of the mean annual deliveered sediment (source areas) is defined as the \"Sediment Source Areas\".<\/SPAN><\/P><\/DIV>", "datesInUnknownTimezone": false, "supportsQueryDomains": true, "units": "esriFeet", "maxSelectionCount": 2000, "supportedImageFormatTypes": "PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP", "supportsClipping": true, "exportTilesAllowed": false, "maxImageHeight": 4096, "tables": [], "supportsDatumTransformation": true, "cimVersion": "3.6.0", "supportsQueryDataElements": true, "layers": [{ "subLayerIds": null, "maxScale": 0, "name": "Designated Sediment Source Area", "defaultVisibility": true, "id": 1, "minScale": 0, "supportsDynamicLegends": true, "type": "Feature Layer", "parentLayerId": -1, "geometryType": "esriGeometryPolygon" }], "mapName": "DesignatedSedimentSourceArea", "minScale": 0, "archivingInfo": {"supportsHistoricMoment": false}, "spatialReference": { "falseM": -100000, "xyTolerance": 0.0032808398950131233, "mUnits": 10000, "zUnits": 10000, "latestWkid": 2992, "zTolerance": 0.001, "wkid": 2992, "xyUnits": 3048, "mTolerance": 0.001, "falseX": -118489100, "falseY": -97381100, "falseZ": -100000 }, "fullExtent": { "ymin": 102961.93635170162, "xmin": 254390.42125983536, "ymax": 1634286.818241477, "xmax": 1003954.0436351746, "spatialReference": { "falseM": -100000, "xyTolerance": 0.0032808398950131233, "mUnits": 10000, "zUnits": 10000, "latestWkid": 2992, "zTolerance": 0.001, "wkid": 2992, "xyUnits": 3048, "mTolerance": 0.001, "falseX": -118489100, "falseY": -97381100, "falseZ": -100000 } }, "supportedExtensions": "", "capabilities": "Map,Query,Data", "supportsDynamicLayers": true, "maxScale": 0, "singleFusedMapCache": false, "currentVersion": 12, "mapUnits": {"uwkid": 9002}, "referenceScale": 0, "supportsSpatialFilter": true, "supportedQueryFormats": "JSON, geoJSON, PBF", "datumTransformations": [ {"geoTransforms": [{ "latestWkid": 108190, "transformForward": true, "wkid": 108190, "name": "WGS_1984_(ITRF00)_To_NAD_1983" }]}, {"geoTransforms": [{ "latestWkid": 108190, "transformForward": false, "wkid": 108190, "name": "WGS_1984_(ITRF00)_To_NAD_1983" }]}, {"geoTransforms": [{ "latestWkid": 108190, "transformForward": true, "wkid": 108190, "name": "WGS_1984_(ITRF00)_To_NAD_1983" }]}, {"geoTransforms": [{ "latestWkid": 108190, "transformForward": false, "wkid": 108190, "name": "WGS_1984_(ITRF00)_To_NAD_1983" }]} ], "initialExtent": { "ymin": 690035.42977653968, "xmin": 389059.43225834449, "ymax": 697026.79942854599, "xmax": 397005.02096187347, "spatialReference": { "falseM": -100000, "xyTolerance": 0.0032808398950131233, "mUnits": 10000, "zUnits": 10000, "latestWkid": 2992, "zTolerance": 0.001, "wkid": 2992, "xyUnits": 3048, "mTolerance": 0.001, "falseX": -118489100, "falseY": -97381100, "falseZ": -100000 } }, "serviceDescription": "

The surface area draining to each debris flow traversal corridor is delineated from the confluence of the corridor with a fish-bearing stream. The delineated area defines a subbasin within the much larger 4th-field HUC analysis basin. Within each subbasis, the initiation sites for debris flows that can carry material to the fish-bearing stream at the subbasin mouth are mapped. These are the sediment source areas for that subbasin. Within each subbasin, the highest 33% of the mean annual deliveered sediment (source areas) is defined as the \"Sediment Source Areas\".<\/SPAN><\/P><\/DIV>", "copyrightText": "Private Forest Accord Steep Slope Prescriptions; please refer to Appendix B: Delineating Landslide and Debris Flow Susceptibility in the Private Forest Accord (2022) Report.", "supportsTimeRelation": true }