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Data products are presented at distinct spatial resolutions based on discrete depth ranges: 2m resolution for data from the 0-85m depth range, 5m resolution for 80-250m depth range, and 10m resolution from depths of 230-1200m. Surveys for sheet H11966 were conducted on August 9-19, 22, 31 and October 18-19, 2009. This version is a 10m mosaic of all data available currently available.", "geometryType": null, "copyrightText": "California Department of Fish and Wildlife, Marine Region (mosaic and distribution only)\nSee source data for orginal citations", "parentLayer": { "id": 0, "name": "Predicted Substrate" }, "subLayers": [], "minScale": 0, "maxScale": 0, "defaultVisibility": true, "extent": { "xmin": -1.3863857842788246E7, "ymin": 4714321.458386205, "xmax": -1.3769577842788246E7, "ymax": 5161731.458386205, "spatialReference": { "wkid": 102100, "latestWkid": 3857 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeNone", "displayField": "", "typeIdField": null, "subtypeFieldName": null, "fields": null, "indexes": [], "subtypes": [], "relationships": [], "canModifyLayer": false, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query", "supportsStatistics": false, "supportsAdvancedQueries": false, "supportedQueryFormats": "JSON, AMF, geoJSON", "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": false, "supportsOrderBy": false, "supportsDistinct": false, "supportsPagination": false, "supportsTrueCurve": false, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": false } }, { "currentVersion": 10.6, "id": 2, "name": "Predicted substrate of North Central California", "type": "Raster Layer", "description": "Marine habitat mapping data for the North Central Coast region. Products are the result of shallow water data collected in 2010, 2009, and 2008 merged with the previously-released 2007 data. Due to time elapsed between seabed surveys, temporal change may be observed in the surface models in some sedimented areas. Because these vertical differences in seafloor elevation are due to movement of sediment over time, and thus represent the true bottom character at the time of each survey, no attempt was made to minimize or adjust these vertical differences along survey boundaries in combined data products. The provided survey footprint polygons illustrate the extent of data collected in individual years, and can be used to discern if an elevation difference observed in the DEM or other products is due to temporal change. A subsection of seafloor data (H12111) collected in 2009 by Fugro Pelagos, Inc for NOAA was also merged with the North Central Coast CSMP data. Acquisition and processing metadata for the FPI/NOAA data set can be found in FPI document OPR-L430-KR-09. Bathymetry products are presented according to standard California State Mapping Project specifications, including depth-dependent resolutions of 2m for data from the 0-85m depth range, 5m for 80-250m depth range, and 10m for depths of 230-1500m. A comprehensive 5m data set was produced for the total survey coverage only if per block data exceeded 85m depth and 5m resolution products were included. Surveys for Block A01 were conducted on June 6, 2010; August 3, 2010; June 18, 21-23, 26-27, 2009; July 6, 11-14, 2009; August 2, 2009; February 12-13, 2007; April 2, 2007. FPI/NOAA data was collected between June 14-August 7, 2009.This GRID is a mosaic of all available source rasters listed above. Resolution is 2m but precision is constrained by the source resolutions stratified by depth as described above. Sustrate classes (1=rock, 0=sediment) are determined by masked rugosity thresholds as descibed in process steps. Please refer to original source tiles for specific characteristics of data at that location. 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However, the existing seafloor maps contain a critical gap\u2014the very nearshore zone, where navigation hazards and technical limitations prevented ship-board mapping. This 50-500m wide band of unmapped seafloor, a data gap known as the \u201cwhite zone\u201d, extends from shore to 10-15m depth along the length of the California coast, encompassing much of the state\u2019s kelp forests and essential habitat for commercially and recreationally important species. We used data available through the California\u2019s Seafloor Mapping Program (CSMP) and the NOAA Environmental Sensitivity Index (ESI) shoreline habitat categorizations, to develop predictive maps of substrate characteristics in the white zone through interpolation. In order to determine an optimal method of interpolation, we used artificial white zones within the CSMP substrate maps, and tested ten ArcGIS interpolation techniques, crossed by five resampled pixel sizes, to test which combination of interpolation methods and pixel size generated the most accurate and precise prediction of rock versus sand substrate. We chose three of the methods with the highest precision and accuracy across multiple on-offshore white zone widths, and used them to generate predictive substrate maps of the white zone within the North Central Coast. This dataset represents the results of interpolation using Inverse Distance Weighting at a 30m cell size using a power of .5, a variable search radius, and 12 points.", "geometryType": null, "copyrightText": "University of California, Santa Cruz\nCalifornia Ocean Science Trust\nCalifornia Department of Fish and Wildlife, Marine Region", "parentLayer": { "id": 0, "name": "Predicted Substrate" }, "subLayers": [], "minScale": 0, "maxScale": 0, "defaultVisibility": true, "extent": { "xmin": -1.3776078949473696E7, "ymin": 4460015.505475559, "xmax": -1.3624818949473696E7, "ymax": 4727135.505475559, "spatialReference": { "wkid": 102100, "latestWkid": 3857 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeNone", "displayField": "", "typeIdField": null, "subtypeFieldName": null, "fields": null, "indexes": [], "subtypes": [], "relationships": [], "canModifyLayer": false, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query", "supportsStatistics": false, "supportsAdvancedQueries": false, "supportedQueryFormats": "JSON, AMF, geoJSON", "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": false, "supportsOrderBy": false, "supportsDistinct": false, "supportsPagination": false, "supportsTrueCurve": false, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": false } }, { "currentVersion": 10.6, "id": 4, "name": "Predicted substrate of Central California", "type": "Raster Layer", "description": "This 10m GRID is a mosaic of current substrate classification features available from the California Seafloor Mapping Project (http://seafloor.otterlabs.org/csmp/csmp.html or http://walrus.wr.usgs.gov/mapping/csmp/). 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