{
"layers" : [ {
"currentVersion" : 10.81,
"cimVersion" : "2.8.0",
"id" : 0,
"name" : "Priority Grazing Land",
"type" : "Feature Layer",
"description" : "The full datasheet for this product is available here: https://sonomaopenspace.egnyte.com/dl/qOm3JEb3tDClass definitions, as well as a dichotomous key for the map classes, can be found in the Sonoma Vegetation and Habitat Map Key (https://sonomaopenspace.egnyte.com/dl/xObbaG6lF8). The fine scale vegetation and habitat map was created using semi-automated methods that include field work, computer-based machine learning, and manual aerial photo interpretation. The vegetation and habitat map was developed by first creating a lifeform map, an 18-class map that served as a foundation for the fine-scale map. The lifeform map was created using “expert systems” rulesets in Trimble Ecognition. These rulesets combine automated image segmentation (stand delineation) with object based image classification techniques. In contrast with machine learning approaches, expert systems rulesets are developed heuristically based on the knowledge of experienced image analysts. Key data sets used in the expert systems rulesets for lifeform included: orthophotography (’11 and ’13), the LiDAR derived Canopy Height Model (CHM), and other LiDAR derived landscape metrics. After it was produced using Ecognition, the preliminary lifeform map product was manually edited by photo interpreters. Manual editing corrected errors where the automated methods produced incorrect results. Edits were made to correct two types of errors: 1) unsatisfactory polygon (stand) delineations and 2) incorrect polygon labels.The mapping team used the lifeform map as the foundation for the finer scale and more floristically detailed Fine Scale Vegetation and Habitat map. For example, a single polygon mapped in the lifeform map as forest might be divided into four polygons in the in the fine scale map including redwood forest, Douglas-fir forest, Oregon white oak forest, and bay forest. The fine scale vegetation and habitat map was developed using a semi-automated approach. The approach combines Ecognition segmentation, extensive field data collection, machine learning, manual editing, and expert review. Ecognition segmentation results in a refinement of the lifeform polygons. Field data collection results in a large number of training polygons labeled with their field-validated map class. Machine learning relies on the field collected data as training data and a stack of GIS datasets as predictor variables. The resulting model is used to create automated fine-scale labels countywide. Machine learning algorithms for this project included both Random Forests and Support Vector Machines (SVMs). Machine learning is followed by extensive manual editing, which is used to 1) edit segment (polygon) labels when they are incorrect and 2) edit segment (polygon) shape when necessary.The map classes in the fine scale vegetation and habitat map generally correspond to the alliance level of the National Vegetation Classification, but some map classes - especially riparian vegetation and herbaceous types - correspond to higher levels of the hierarchy (such as group or macrogroup).",
"geometryType" : "esriGeometryPolygon",
"sourceSpatialReference" : {
"wkid" : 102642,
"latestWkid" : 2226,
"xyTolerance" : 0.003280833333333333,
"zTolerance" : 0.001,
"mTolerance" : 0.001,
"falseX" : -115211800,
"falseY" : -93821500,
"xyUnits" : 3048.006096012192,
"falseZ" : -100000,
"zUnits" : 10000,
"falseM" : -100000,
"mUnits" : 10000
},
"copyrightText" : "Sonoma County Water Agency, Sonoma County Agricultural Preservation and Open Space District, Sonoma County Vegetation Mapping and LiDAR Program",
"parentLayer" : null,
"subLayers" : [ ],
"minScale" : 0,
"maxScale" : 0,
"referenceScale" : 0.0,
"drawingInfo" : {
"renderer" : {
"type" : "simple",
"symbol" : {
"type" : "esriSFS",
"style" : "esriSFSSolid",
"color" : [ 238, 185, 160, 255 ],
"outline" : {
"type" : "esriSLS",
"style" : "esriSLSNull",
"color" : [ 225, 225, 225, 255 ],
"width" : 0
}
}
},
"scaleSymbols" : true,
"transparency" : 20,
"labelingInfo" : null
},
"defaultVisibility" : true,
"extent" : {
"xmin" : -1.3738992147419814E7,
"ymin" : 4594573.366794024,
"xmax" : -1.362028407448649E7,
"ymax" : 4699427.4228431415,
"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
}
},
"hasAttachments" : false,
"htmlPopupType" : "esriServerHTMLPopupTypeAsHTMLText",
"displayField" : "MAP_CLASS_COMMON_NAME",
"typeIdField" : null,
"subtypeFieldName" : null,
"subtypeField" : null,
"defaultSubtypeCode" : null,
"fields" : [ {
"name" : "OBJECTID",
"type" : "esriFieldTypeOID",
"alias" : "OBJECTID",
"domain" : null
}, {
"name" : "Shape",
"type" : "esriFieldTypeGeometry",
"alias" : "Shape",
"domain" : null
}, {
"name" : "FID_Grazing_Veg",
"type" : "esriFieldTypeInteger",
"alias" : "FID_Grazing_Veg",
"domain" : null
}, {
"name" : "MAP_CLASS",
"type" : "esriFieldTypeString",
"alias" : "Map Class",
"length" : 255,
"domain" : null
}, {
"name" : "SOURCE",
"type" : "esriFieldTypeString",
"alias" : "Source",
"length" : 255,
"domain" : null
}, {
"name" : "REL_COV",
"type" : "esriFieldTypeString",
"alias" : "Relative Cover",
"length" : 255,
"domain" : null
}, {
"name" : "ALLIANCE",
"type" : "esriFieldTypeString",
"alias" : "Alliance",
"length" : 255,
"domain" : null
}, {
"name" : "OID_COPY",
"type" : "esriFieldTypeInteger",
"alias" : "OID_COPY",
"domain" : null
}, {
"name" : "Abbrv",
"type" : "esriFieldTypeString",
"alias" : "Abbrv",
"length" : 255,
"domain" : null
}, {
"name" : "LIFEFORM",
"type" : "esriFieldTypeString",
"alias" : "Lifeform",
"length" : 255,
"domain" : null
}, {
"name" : "LF_FOREST",
"type" : "esriFieldTypeString",
"alias" : "Forest Lifeform",
"length" : 255,
"domain" : null
}, {
"name" : "SERP_FLAG",
"type" : "esriFieldTypeSmallInteger",
"alias" : "Serpentine Flag",
"domain" : null
}, {
"name" : "TREE_HT_MN",
"type" : "esriFieldTypeDouble",
"alias" : "Mean LiDAR Tree Height",
"domain" : null
}, {
"name" : "TREE_HT_MX",
"type" : "esriFieldTypeDouble",
"alias" : "Max LiDAR Tree Height",
"domain" : null
}, {
"name" : "TREE_HT_SD",
"type" : "esriFieldTypeDouble",
"alias" : "Standard Deviation LiDAR Tree Height",
"domain" : null
}, {
"name" : "ABS_COVER",
"type" : "esriFieldTypeDouble",
"alias" : "Absolute % Tree Canopy Cover",
"domain" : null
}, {
"name" : "HDW_COV_LO",
"type" : "esriFieldTypeDouble",
"alias" : "Absolute Hardwood Cover Low End",
"domain" : null
}, {
"name" : "HDW_COV_HI",
"type" : "esriFieldTypeDouble",
"alias" : "Absolute Hardwood Cover High End",
"domain" : null
}, {
"name" : "CON_COV_LO",
"type" : "esriFieldTypeDouble",
"alias" : "Absolute Conifer Cover Low End",
"domain" : null
}, {
"name" : "CON_COV_HI",
"type" : "esriFieldTypeDouble",
"alias" : "Absolute Conifer Cover High End",
"domain" : null
}, {
"name" : "PPT_IMPERV",
"type" : "esriFieldTypeDouble",
"alias" : "Proportion Impervious",
"domain" : null
}, {
"name" : "PPT_PERV",
"type" : "esriFieldTypeDouble",
"alias" : "Proportion Pervious",
"domain" : null
}, {
"name" : "PPT_PVD_RD",
"type" : "esriFieldTypeDouble",
"alias" : "Proportion Paved Road",
"domain" : null
}, {
"name" : "PPT_DRT_RD",
"type" : "esriFieldTypeDouble",
"alias" : "Proportion Dirt Road",
"domain" : null
}, {
"name" : "PPT_OT_IMP",
"type" : "esriFieldTypeDouble",
"alias" : "Proportion Other Impervious",
"domain" : null
}, {
"name" : "PPT_BUILDG",
"type" : "esriFieldTypeDouble",
"alias" : "Proportion Buildings",
"domain" : null
}, {
"name" : "BM_MG_HA",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Biomass (Metric Tons per Ha)",
"domain" : null
}, {
"name" : "BM_MG_AC",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Biomass (Metric Tons per Acre)",
"domain" : null
}, {
"name" : "BM_MG",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Biomass (Metric Tons)",
"domain" : null
}, {
"name" : "CB_MG_HA",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Carbon (Metric Tons per Hectare)",
"domain" : null
}, {
"name" : "CB_MG_AC",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Carbon (Metric Tons per Acre)",
"domain" : null
}, {
"name" : "CB_MG",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Carbon (Metric Tons)",
"domain" : null
}, {
"name" : "CB_EQVT_HA",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Carbon (Equivalents per Hectare)",
"domain" : null
}, {
"name" : "CB_EQVT_AC",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Carbon (Equivalents per Acre)",
"domain" : null
}, {
"name" : "CB_EQVTS",
"type" : "esriFieldTypeDouble",
"alias" : "Aboveground Carbon (Equivalents)",
"domain" : null
}, {
"name" : "MN_P05",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of 5th Percentile Height",
"domain" : null
}, {
"name" : "SD_P05",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of 5th Percentile Height",
"domain" : null
}, {
"name" : "MN_P10",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of 10th Percentile Height",
"domain" : null
}, {
"name" : "SD_P10",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of 10th Percentile Height",
"domain" : null
}, {
"name" : "MN_P25",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of 25th Percentile Height",
"domain" : null
}, {
"name" : "SD_P25",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of 25th Percentile Height",
"domain" : null
}, {
"name" : "MN_P50",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of 50th Percentile Height",
"domain" : null
}, {
"name" : "SD_P50",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of 50th Percentile Height",
"domain" : null
}, {
"name" : "MN_P75",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of 75th Percentile Height",
"domain" : null
}, {
"name" : "SD_P75",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of 75th Percentile Height",
"domain" : null
}, {
"name" : "MN_P90",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of 90th Percentile Height",
"domain" : null
}, {
"name" : "SD_P90",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of 90th Percentile Height",
"domain" : null
}, {
"name" : "MN_QAV",
"type" : "esriFieldTypeSingle",
"alias" : "Mean LiDAR Average Square Height",
"domain" : null
}, {
"name" : "SD_QAV",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of LiDAR Average Square Height",
"domain" : null
}, {
"name" : "MN_SKE",
"type" : "esriFieldTypeSingle",
"alias" : "Mean LiDAR Skewness",
"domain" : null
}, {
"name" : "SD_SKE",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of LiDAR Skewness",
"domain" : null
}, {
"name" : "MN_AVG",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of LiDAR Returns",
"domain" : null
}, {
"name" : "MN_KUR",
"type" : "esriFieldTypeSingle",
"alias" : "Mean LiDAR Kurtosis",
"domain" : null
}, {
"name" : "SD_KUR",
"type" : "esriFieldTypeSingle",
"alias" : "Standard Deviation of LiDAR Kurtosis",
"domain" : null
}, {
"name" : "MN_STD",
"type" : "esriFieldTypeSingle",
"alias" : "Mean of the Standard Deviations of LiDAR Returns",
"domain" : null
}, {
"name" : "MAP_CLASS_COMMON_NAME",
"type" : "esriFieldTypeString",
"alias" : "MAP_CLASS_COMMON_NAME",
"length" : 75,
"domain" : null
}, {
"name" : "FID_FcDate2_0618_Final",
"type" : "esriFieldTypeInteger",
"alias" : "FID_Ownership",
"domain" : null
}, {
"name" : "Normalized_Name",
"type" : "esriFieldTypeString",
"alias" : "Normalized_Name",
"length" : 50,
"domain" : null
}, {
"name" : "Normalized_Label",
"type" : "esriFieldTypeString",
"alias" : "Normalized_Label",
"length" : 50,
"domain" : null
}, {
"name" : "Acres",
"type" : "esriFieldTypeDouble",
"alias" : "Acres_Ownership",
"domain" : null
}, {
"name" : "Grazing_Veg_Acres",
"type" : "esriFieldTypeDouble",
"alias" : "Grazing_Veg_Acres",
"domain" : null
}, {
"name" : "Grazing_Veg_Acres_Owner_Sum",
"type" : "esriFieldTypeDouble",
"alias" : "Priority Grazing Land",
"domain" : null
}, {
"name" : "Grazing_Veg_Acres_Owner_Perc",
"type" : "esriFieldTypeDouble",
"alias" : "Grazing_Veg_Acres_Owner_Perc",
"domain" : null
}, {
"name" : "Grazing_Veg_Acres_Greater_250",
"type" : "esriFieldTypeSmallInteger",
"alias" : "Grazing_Veg_Acres_Greater_250",
"domain" : null
}, {
"name" : "Grazing_Veg_Acres_Perc_Greater_250_Sum",
"type" : "esriFieldTypeDouble",
"alias" : "Grazing_Veg_Acres_Perc_Greater_250_Sum",
"domain" : null
}, {
"name" : "Shape_Length",
"type" : "esriFieldTypeDouble",
"alias" : "Shape_Length",
"domain" : null
}, {
"name" : "Shape_Area",
"type" : "esriFieldTypeDouble",
"alias" : "Shape_Area",
"domain" : null
}, {
"name" : "VLI_Priority",
"type" : "esriFieldTypeString",
"alias" : "VLI_Priority",
"length" : 25,
"domain" : null
} ],
"geometryField" : {
"name" : "Shape",
"type" : "esriFieldTypeGeometry",
"alias" : "Shape"
},
"indexes" : [ {
"name" : "FDO_OBJECTID",
"fields" : "OBJECTID",
"isAscending" : true,
"isUnique" : true,
"description" : ""
}, {
"name" : "FDO_Shape",
"fields" : "Shape",
"isAscending" : true,
"isUnique" : false,
"description" : ""
} ],
"subtypes" : [ ],
"relationships" : [ ],
"canModifyLayer" : false,
"canScaleSymbols" : false,
"hasLabels" : false,
"capabilities" : "Map",
"maxRecordCount" : 1000,
"supportsStatistics" : true,
"supportsExceedsLimitStatistics" : true,
"supportsAdvancedQueries" : true,
"supportedQueryFormats" : "JSON, geoJSON, PBF",
"isDataVersioned" : false,
"ownershipBasedAccessControlForFeatures" : {
"allowOthersToQuery" : true
},
"advancedQueryCapabilities" : {
"useStandardizedQueries" : false,
"supportsStatistics" : true,
"supportsPercentileStatistics" : true,
"supportsHavingClause" : true,
"supportsOrderBy" : true,
"supportsDistinct" : true,
"supportsCountDistinct" : true,
"supportsPagination" : true,
"supportsLod" : false,
"supportsQueryWithLodSR" : false,
"supportsTrueCurve" : true,
"supportsQueryWithDatumTransformation" : true,
"supportsReturningQueryExtent" : true,
"supportsQueryWithDistance" : true,
"supportsSqlExpression" : true,
"supportsTimeRelation" : true,
"supportsSqlFormat" : true
},
"supportsDatumTransformation" : true,
"dateFieldsTimeReference" : null,
"preferredTimeReference" : null,
"datesInUnknownTimezone" : false,
"hasGeometryProperties" : true,
"geometryProperties" : {
"shapeAreaFieldName" : "Shape_Area",
"shapeLengthFieldName" : "Shape_Length",
"units" : "esriFeet"
},
"hasMetadata" : true,
"isDataArchived" : false,
"archivingInfo" : {
"supportsQueryWithHistoricMoment" : false,
"startArchivingMoment" : -1
},
"supportsCoordinatesQuantization" : true,
"supportsDynamicLegends" : true
} ],
"tables" : [ ]
}