{ "currentVersion": 10.81, "cimVersion": "2.6.0", "serviceDescription": "This service displays the Total Silt theme from the GSM v0.5 based on Soil Survey Geographic Database (SSURGO) filled in with STATSGO2 for missing SSURGO data. The Total Silt theme is displayed by three property values; high, low, and representative. Each value displays the depth range in cm.", "mapName": "Layers20", "description": "The total silt (silttotal) table is designed to facilitate thematic mapping. The table is national in extent and can be \nused in conjunction with the GSM Version 0.5 grid to map total soil silt (silttotal). The \"h\", \"l\", and \"r\" correspond to \n\"high\", \"low\" and \"representative\" property values. \nThe \"l\" represents the minimum low value of all the components within each map unit and is used as an approximate lower \nconfidence limit estimate for the map unit at each depth. For the lower estimate above the representative value \"r\" (due to\nincomplete population of high and low values in SSURGO, and anomalies in the spline), the lower\nestimate was set to null.\nThe \"h\" represents the maximum value of all the components within each map unit and is used as an approximate upper \nconfidence limit estimate for the map unit at each depth. For the upper estimate above the representative value \"r\" (due to\nincomplete population of high and low values in SSURGO, and anomalies in the spline), the upper\nestimate was set to null. The table can be attached to the raster map layer data using the common \"mukeyint\" for spatial mapping. This table represents total silt (silttotal) soil property.\n
Field<\/th>Description<\/th><\/tr>\n
mukeyint: <\/td>Map unit identification key<\/td><\/tr>
source: <\/td>SSURGO or STATSGO2<\/td><\/tr>
count30m: <\/td>Number of pixels in the map unit<\/td><\/tr>
km2: <\/td>Area in km2 of map unit extent<\/td><\/tr>
muname: <\/td>Descriptive map unit name<\/td><\/tr>
mu_silttotal_r_g_gF_000_005: <\/td>total silt as fraction (F) for 0-5 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_005_015: <\/td>total silt as fraction (F) for 5-15 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_015_030: <\/td>total silt as fraction (F)for 15-30 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_030_060: <\/td>total silt as fraction (F) for 30-60 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_060_100: <\/td>total silt as fraction (F) for 60-100 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_100_200: <\/td>total silt as fraction (F) for 100-200 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_000_999: <\/td>total silt as fraction (F) for total soil thickness prior to spline<\/td><\/tr>
mu_silttotal_r_g_gF_rootzone: <\/td>total silt as fraction (F) for total soil thickness available to root zone<\/td><\/tr>
mu_sum_comppct_r_fix_silttotal_r: <\/td>Percent (by area) of map unit used for weighted average calculation<\/td><\/tr>
silttotal units: <\/td>g per g as fraction (F)<\/td><\/tr><\/table>\nHorizon values for each component (soil type) were selected only where the data were not missing and \nthe component kind was not \u2018Miscellaneous area\u2019. Miscellaneous areas were excluded since they are dominantly occupied by\nnon-soil materials. Major miscellanous areas include badlands, beaches, chutes, cinder lands, dams, dumps, dune lands, glaciers, gullied land,\nlava flows, mined lands, oil-waste land, pits, playas, riverwash, rock outcrop, rubble land, slickens, urban land and water. \nDetailed descriptions of each category can be found in the National Soil Survey Handbook, Part 627 - Legend Development and Data Collection, \nSubpart B - 627.10 (U.S. Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI \n[http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054242 (accessed 14 February 2018)].\nThe values for each soil type profile were fit with an equal-area continuous smoothing spline. \n(Bishop et al., 1999; Odgers et al., 2012) with a smoothing parameter, lambda, set at 0.1 for all properties.\nThe generated spline was used to set property estimates at the GlobalSoilMap standard depth intervals (0-5 cm, 5-15 cm, 15-30 cm, 30-60 cm, 60-100 cm,\nand 100-200 cm (GlobalSoilMap, 2012)).\nFor instances where splined values exceeded the lower and upper bounds the property estimate was \u201ccapped\u201d at the nearest sensible bound.\nThe representative standard depth estimates for each profile (i.e. component or soil type), were weighted within each map unit \n(i.e. group of components mapped together), using the component percentage by area of the map unit as the weights. Miscellaneous areas (non-soil\nmaterials) did not contribute to the map unit weighted average so the weighted mean represents only the\nsoils in each map unit. The remaining soil components were scaled to represent 100% of the map unit\nand weighted accordingly in the calculation of the map unit average. Values for map units dominated by non-soil material, or with more than 50% \nas \u2018Miscellaneous area\u2019 were set to null.\n\n\n

Use Limitations: <\/strong>This dataset is not designed for use as a primary regulatory tool in permitting or siting decisions, but may be used as a reference source. \nThis is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, \nthey are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the \nNatural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not \nperform any evaluations of these maps for purposes related solely to State or local regulatory programs. Digital data files are \nperiodically updated. Files are dated, and users are responsible for obtaining the latest version of the data.
\nScale Range: <\/strong>Maximum (zoomed in) 1:24,000, Minimum (zoomed out) 1:1,500,000
\nCitations: <\/strong>Bliss, N., Thompson, J., Hempel, J., Libohova, Z., 2017. GlobalSoilMap Version 0.5: Soil property maps from the State Soil geography (SSURGO) Database \nfilled in with General Soil Map Database (STATSG02) database for the lower 48 states, USA.
\nPurpose: <\/strong>Providing the public with a GSM v0.5 total silt theme service.<\/strong>
\nCreation Date: <\/strong>2015
\nPublication Date: <\/strong>20180124
\nRevision Date: <\/strong>20180410
\nRefresh Cycle: <\/strong>Final product.
\nVersion: <\/strong>2.0.0
\nChange Log: <\/strong>Added high, low, and representative estimates. Description edits.
\nReport Service Errors<\/a><\/strong>
\nReport Data Issues or Questions<\/a><\/strong>
", "copyrightText": "Soil Survey Staff - West Virginia University, Gridded GlobalSoilMap Property maps (GSM, Version 0.5) for conterminous United States, USDA-NRCS.", "supportsDynamicLayers": false, "layers": [ { "id": 0, "name": "Total Silt, g gF, High Estimate", "parentLayerId": -1, "defaultVisibility": true, "subLayerIds": [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ], "minScale": 0, "maxScale": 0, "type": "Group Layer", "supportsDynamicLegends": false }, { "id": 1, "name": "Total Silt, g gF H, 0-5 cm depth", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 2, "name": "Total Silt, g gF H, 5-15 cm depth", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 3, "name": "Total Silt, g gF H, 15-30 cm depth", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 4, "name": "Total Silt, g gF H, 30-60 cm depth", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 5, "name": "Total Silt, g gF H, 60-100 cm depth", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 6, "name": "Total Silt, g gF H, 100-200 cm depth", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 7, "name": "Total Silt, g gF H, total depth prior to spline", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 8, "name": "Total Silt, g gF H, depth available to root zone", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 9, "name": "Percent of Map Unit used for Weighted Avg Calculation", "parentLayerId": 0, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 10, "name": "Total Silt, g gF, Representative Estimate", "parentLayerId": -1, "defaultVisibility": true, "subLayerIds": [ 11, 12, 13, 14, 15, 16, 17, 18, 19 ], "minScale": 0, "maxScale": 0, "type": "Group Layer", "supportsDynamicLegends": false }, { "id": 11, "name": "Total Silt, g gF R, 0-5 cm depth", "parentLayerId": 10, "defaultVisibility": true, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 12, "name": "Total Silt, g gF R, 5-15 cm depth", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 13, "name": "Total Silt, g gF R, 15-30 cm depth", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 14, "name": "Total Silt, g gF R, 30-60 cm depth", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 15, "name": "Total Silt, g gF R, 60-100 cm depth", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 16, "name": "Total Silt, g gF R, 100-200 cm depth", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 17, "name": "Total Silt, g gF R, total depth prior to spline", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 18, "name": "Total Silt, g gF R, depth available to root zone", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 19, "name": "Percent of Map Unit used for Weighted Avg Calculation", "parentLayerId": 10, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 20, "name": "Total Silt, g gF, Low Estimate", "parentLayerId": -1, "defaultVisibility": true, "subLayerIds": [ 21, 22, 23, 24, 25, 26, 27, 28 ], "minScale": 0, "maxScale": 0, "type": "Group Layer", "supportsDynamicLegends": false }, { "id": 21, "name": "Total Silt, g gF L, 0-5 cm depth", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 22, "name": "Total Silt, g gF L, 5-15 cm depth", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 23, "name": "Total Silt, g gF L, 15-30 cm depth", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 24, "name": "Total Silt, g gF L, 30-60 cm depth", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 25, "name": "Total Silt, g gF L, 60-100 cm depth", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 26, "name": "Total Silt, g gF L, 100-200 cm depth", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 27, "name": "Total Silt, g gF L, total depth prior to spline", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true }, { "id": 28, "name": "Total Silt, g gF L, depth available to root zone", "parentLayerId": 20, "defaultVisibility": false, "subLayerIds": null, "minScale": 0, "maxScale": 0, "type": "Raster Layer", "supportsDynamicLegends": true } ], "tables": [], "spatialReference": { "wkid": 4326, "latestWkid": 4326, "xyTolerance": 8.983152841195215E-9, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -400, "falseY": -400, "xyUnits": 9.999999999999999E8, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 }, "singleFusedMapCache": false, "initialExtent": { "xmin": -101.72357174705881, "ymin": 39.45904277610153, "xmax": -100.23127822562675, "ymax": 43.03750173055597, "spatialReference": { "wkid": 4326, "latestWkid": 4326, "xyTolerance": 8.983152841195215E-9, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -400, "falseY": -400, "xyUnits": 9.999999999999999E8, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "fullExtent": { "xmin": -127.88791666665702, "ymin": 22.877916666676636, "xmax": -65.27458333332372, "ymax": 51.60541666667662, "spatialReference": { "wkid": 4326, "latestWkid": 4326, "xyTolerance": 8.983152841195215E-9, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -400, "falseY": -400, "xyUnits": 9.999999999999999E8, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "minScale": 0, "maxScale": 0, "units": "esriDecimalDegrees", "supportedImageFormatTypes": "PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP", "documentInfo": { "Title": "Layers", "Author": "", "Comments": "The total silt (silttotal) table is designed to facilitate thematic mapping. The table is national in extent and can be \nused in conjunction with the GSM Version 0.5 grid to map total soil silt (silttotal). The \"h\", \"l\", and \"r\" correspond to \n\"high\", \"low\" and \"representative\" property values. \nThe \"l\" represents the minimum low value of all the components within each map unit and is used as an approximate lower \nconfidence limit estimate for the map unit at each depth. For the lower estimate above the representative value \"r\" (due to\nincomplete population of high and low values in SSURGO, and anomalies in the spline), the lower\nestimate was set to null.\nThe \"h\" represents the maximum value of all the components within each map unit and is used as an approximate upper \nconfidence limit estimate for the map unit at each depth. For the upper estimate above the representative value \"r\" (due to\nincomplete population of high and low values in SSURGO, and anomalies in the spline), the upper\nestimate was set to null. The table can be attached to the raster map layer data using the common \"mukeyint\" for spatial mapping. This table represents total silt (silttotal) soil property.\n
Field<\/th>Description<\/th><\/tr>\n
mukeyint: <\/td>Map unit identification key<\/td><\/tr>
source: <\/td>SSURGO or STATSGO2<\/td><\/tr>
count30m: <\/td>Number of pixels in the map unit<\/td><\/tr>
km2: <\/td>Area in km2 of map unit extent<\/td><\/tr>
muname: <\/td>Descriptive map unit name<\/td><\/tr>
mu_silttotal_r_g_gF_000_005: <\/td>total silt as fraction (F) for 0-5 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_005_015: <\/td>total silt as fraction (F) for 5-15 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_015_030: <\/td>total silt as fraction (F)for 15-30 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_030_060: <\/td>total silt as fraction (F) for 30-60 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_060_100: <\/td>total silt as fraction (F) for 60-100 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_100_200: <\/td>total silt as fraction (F) for 100-200 cm soil thickness<\/td><\/tr>
mu_silttotal_r_g_gF_000_999: <\/td>total silt as fraction (F) for total soil thickness prior to spline<\/td><\/tr>
mu_silttotal_r_g_gF_rootzone: <\/td>total silt as fraction (F) for total soil thickness available to root zone<\/td><\/tr>
mu_sum_comppct_r_fix_silttotal_r: <\/td>Percent (by area) of map unit used for weighted average calculation<\/td><\/tr>
silttotal units: <\/td>g per g as fraction (F)<\/td><\/tr><\/table>\nHorizon values for each component (soil type) were selected only where the data were not missing and \nthe component kind was not \u2018Miscellaneous area\u2019. Miscellaneous areas were excluded since they are dominantly occupied by\nnon-soil materials. Major miscellanous areas include badlands, beaches, chutes, cinder lands, dams, dumps, dune lands, glaciers, gullied land,\nlava flows, mined lands, oil-waste land, pits, playas, riverwash, rock outcrop, rubble land, slickens, urban land and water. \nDetailed descriptions of each category can be found in the National Soil Survey Handbook, Part 627 - Legend Development and Data Collection, \nSubpart B - 627.10 (U.S. Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI \n[http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054242 (accessed 14 February 2018)].\nThe values for each soil type profile were fit with an equal-area continuous smoothing spline. \n(Bishop et al., 1999; Odgers et al., 2012) with a smoothing parameter, lambda, set at 0.1 for all properties.\nThe generated spline was used to set property estimates at the GlobalSoilMap standard depth intervals (0-5 cm, 5-15 cm, 15-30 cm, 30-60 cm, 60-100 cm,\nand 100-200 cm (GlobalSoilMap, 2012)).\nFor instances where splined values exceeded the lower and upper bounds the property estimate was \u201ccapped\u201d at the nearest sensible bound.\nThe representative standard depth estimates for each profile (i.e. component or soil type), were weighted within each map unit \n(i.e. group of components mapped together), using the component percentage by area of the map unit as the weights. Miscellaneous areas (non-soil\nmaterials) did not contribute to the map unit weighted average so the weighted mean represents only the\nsoils in each map unit. The remaining soil components were scaled to represent 100% of the map unit\nand weighted accordingly in the calculation of the map unit average. Values for map units dominated by non-soil material, or with more than 50% \nas \u2018Miscellaneous area\u2019 were set to null.\n\n\n

Use Limitations: <\/strong>This dataset is not designed for use as a primary regulatory tool in permitting or siting decisions, but may be used as a reference source. \nThis is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, \nthey are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the \nNatural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not \nperform any evaluations of these maps for purposes related solely to State or local regulatory programs. Digital data files are \nperiodically updated. Files are dated, and users are responsible for obtaining the latest version of the data.
\nScale Range: <\/strong>Maximum (zoomed in) 1:24,000, Minimum (zoomed out) 1:1,500,000
\nCitations: <\/strong>Bliss, N., Thompson, J., Hempel, J., Libohova, Z., 2017. GlobalSoilMap Version 0.5: Soil property maps from the State Soil geography (SSURGO) Database \nfilled in with General Soil Map Database (STATSG02) database for the lower 48 states, USA.
\nPurpose: <\/strong>Providing the public with a GSM v0.5 total silt theme service.<\/strong>
\nCreation Date: <\/strong>2015
\nPublication Date: <\/strong>20180124
\nRevision Date: <\/strong>20180410
\nRefresh Cycle: <\/strong>Final product.
\nVersion: <\/strong>2.0.0
\nChange Log: <\/strong>Added high, low, and representative estimates. Description edits.
\nReport Service Errors<\/a><\/strong>
\nReport Data Issues or Questions<\/a><\/strong>
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