Identification_Information: Citation: Citation_Information: Originator: Nadine Golden Publication_Date: 2006 Title: Fanny Shoals Habitat polygons Edition: (Volume I, Version 1.0, 2006) Geospatial_Data_Presentation_Form: map Online_Linkage: http://pubs.usgs.gov/of/2006/1177/catalog.html Online_Linkage: http://pubs.usgs.gov/of/2006/1177/habitat/fshab.tgz Larger_Work_Citation: Citation_Information: Originator: Nadine GOlden Publication_Date: 2006 Title: Benthic Habitat and Geologic Mapping of the outer Continental Shelf of North-Central California Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: USGS OFR 2006-1177 Publication_Information: Publication_Place: Western Coastal and Marine Geology, Santa Cruz, CA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2006/1177/ Description: Abstract: The Fanny Shoal area is located between North Farallon Island and Cordell Bank approximately 40 miles west of San Francisco, California. The area is a very important habitat to a diverse marine community. The area lies within the Gulf of the Farallones National Marine Sanctuary (GFNMS), a site managed with a mandate of living and cultural resource protection that is administered by the National Oceanic and Atmospheric Administration (NOAA). The U.S. Geological Survey (USGS) in cooperation with the Golden Gate National Recreation Area (GGNRA) and NOAA, including, the GFNMS, and Monterey Bay National Marine Sanctuary (MBNMS), collected side -scanning sonar, and underwater video data over three cruises. The data are consolidated into a geographic information system (GIS) that will provide researchers and those involved in decision making with information that will aid in preserving the area's environment. Purpose: These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information. Supplemental_Information: Additional information about the field activities from which this data set was derived are available online at http://walrus.wr.usgs.gov/nearshorehab/ Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2005 Ending_Date: 2006 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: As Needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -123.261767 East_Bounding_Coordinate: -123.134520 North_Bounding_Coordinate: 37.872810 South_Bounding_Coordinate: 37.789369 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: habitat Theme_Keyword: fisheries Theme_Keyword: seafloor Theme_Keyword: geology Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: biota Theme_Keyword: geoscientificinformation Theme_Keyword: imagereyBaseMapsEarthCover Theme_Keyword: oceans Place: Place_Keyword_Thesaurus: U.S. Geological Survey, 19810501, U.S. Geographic Names Information System (GNIS): U.S. Geological Survey, Reston, VA., Place_Keyword: California Place_Keyword: Gulf of the Farallones Place_Keyword: Fanny Shoal Access_Constraints: None Use_Constraints: Not suitable for navigation Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Roberto J. Anima Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology Program (CMGP) Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: USGS, 345 Middlefield Road, MS 999 City: Palo Alto State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5212 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: ranima@usgs.gov Data_Set_Credit: The authors would like to thank the staff of the GFNMS, Jan Roletto, MBNMS, Jean de Marignac, and CBNMS, Dan Howard and Dale Roberts, for their support of this project. Fred Payne and Gerry Hatcher and the staff at the USGS Western Region Marine Facility expertly assisted with the mobilization, logistics and data acquisition. We would also like to thank the crew of the NOAA R/V MacArthur II. Native_Data_Set_Environment: SunOS, 5.8, sun4u UNIX ArcInfo version 9.1 Cross_Reference: Citation_Information: Originator: United States Geological Survey (USGS), Coastal and Marine Geology (CMG) Publication_Date: 2006 Title: Benthic Habitat and Geologic Mapping of the outer Continental Shelf of North-Central California Online_Linkage: http://pubs.usgs.gov/of/2006/1177/ Larger_Work_Citation: Citation_Information: Originator: United States Geological Survey (USGS), Coastal and Marine Geology (CMG) Publication_Date: 2006 Title: USGS CMG InfoBank Online_Linkage: http://walrus.wr.usgs.gov/InfoBank Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2006/1177/images/fshab.html Browse_Graphic_File_Description: JPEG image of habitat polygons Browse_Graphic_File_Type: JPEG Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Habitat polygons dervived in ArcGIS 9.1 from a georefereced sidescan sonar mosaic tiff. Logical_Consistency_Report: No additional checks for topological consistency were performed on this data. Completeness_Report: complete Lineage: Process_Step: Process_Description: image mosaic sanp1m.img-------generation of entropy and homogeniety values----texscal Program: TexScal vers. 2d USGS Guy R. Cochrane gcochrane@usgs.gov 02/01/2005 10:10:27 W = 11, D = 1 wd=12 wd2=6 Input matrix filename nufanf.img LINES: 15389 SAMPLES: 18633 Valid pixels processed: 129262505.000000 bmin = 0 bmax = 254 emin = 2.168136 emax = 4.731017 hmin = 0.011029 hmax = 1.334025 entropy correction = 99.107233 homogeneity correction = 191.988461 texgen Program TexGen vers. 2d USGS Guy R. Cochrane gcochrane@usgs.gov Input Matrix filename: nufanf.img Entropy minimum value: 2.168136 Homogeneity minimum value: 0.011029 Entropy correction value: 99.107233 Homogeneity correction value: 191.988461 Output Entropy filename: nufanfent.img Output Homogeneity filename: nufanfhom.img LINES: 15389 SAMPLES: 18633 W = 11 D = 1 Valid pixels processed: 129262505.000000 ---------classification of rock (hard) areas-------------texsig created signature files used by texclass to generate output image files: signature file: rock1.sig starting line: 7253 starting sample: 6228 ending line: 7272 ending sample: 6247 texclass range limit: 2percentage of habitat defined: 14.9, assigned DN = 255output image file: nufanfrock1.img signature file: rock2.sig starting line: 5675 starting sample: 2045 ending line: 5684 ending sample: 2054 texclass range limit: 2percentage of habitat defined: 2.0, assigned DN = 255output image file: nufanfrock2.img signature file: nrock1.sig starting line: 6860 starting sample: 6442 ending line: 6879 ending sample: 6461 texclass range limit: 2 percentage of habitat defined: 1.9, assigned DN = 255 output image file: nufanfnrock1.img signature file: nrock2.sig starting line: 6317 starting sample: 4931 ending line: 6326 ending sample: 4940 texclass range limit: 2 percentage of habitat defined: 0.4, assigned DN = 255 output image file: nufanfnrock2.img signature file: rock3.sig starting line: 6437 starting sample: 2386 ending line: 6446 ending sample: 2395 texclass range limit: 2 percentage of habitat defined: 5.3, assigned DN = 255 output image file: nufanfrock3.img signature file: rock4.sig starting line: 6349 starting sample: 2385 ending line: 6358 ending sample: 2394 texclass range limit: 2 percentage of habitat defined: 8.9, assigned DN = 255 output image file: nufanfrock4.img signature file: rock5.sig starting line: 5936 starting sample: 2262 ending line: 5945 ending sample: 2271 texclass range limit: 2 percentage of habitat defined: 3.2, assigned DN = 255 output image file: nufanfrock5.img signature file: rock6.sig starting line: 7861 starting sample: 8840 ending line: 7890 ending sample: 8869 texclass range limit: 2 percentage of habitat defined: 6.3, assigned DN = 255 output image file: nufanfrock5.img signature file: rock7.sig starting line: 7801 starting sample: 8860 ending line: 7830 ending sample: 8869 texclass range limit: 2 percentage of habitat defined: 2.7, assigned DN = 255 output image file: nufanfrock5.img Combined nufanfrock1.img nufanfrock2.img nufanfrock3.img nufanfrock4.img nufanfrock5.img nufanfrock6.img nufanfrock7.img nufanfnrock1.img nufanfnrock2.img converted to .tiff and sent to Nadine Golden for further processing -----------classification of mixed areas------------------- texsig created signature files used by texclass to generate output image files: signature file: sdwv2.sig starting line: 5942 starting sample: 12803 ending line: 5961 ending sample: 12822 texclass range limit: 2 percentage of habitat defined: 8.4, assigned DN = 255 output image file: nufanfsdwv2.img signature file: sdwv4.sig starting line: 4546 starting sample: 9059 ending line: 4565 ending sample: 9078 texclass range limit: 2 percentage of habitat defined: 9.5, assigned DN = 255 output image file: nufanfsdwv4.img Combined nufanfsdwv2.img nufanfsdwv4.img converted to .tiff and sent to Nadine Golden for further processing -----------classification of soft areas-------------------texsig created signature files used by texclass to generate output image files: signature file: mud1.sig starting line: 3461 starting sample: 4463 ending line: 3470 ending sample: 4472 texclass range limit: 2 percentage of habitat defined: 7.7, assigned DN = 255 output image file: nufanfmud1.img signature file: mud2.sig starting line: 10284 starting sample: 17410 ending line: 10293 ending sample: 17419 texclass range limit: 2 signature file: mud3.sig starting line: 2884 starting sample: 4080 ending line: 2889 ending sample: 4084 texclass range limit: 2 percentage of habitat defined: 1.3, assigned DN = 255 output image file: nufanfmud3.img signature file: mud4.sig starting line: 3024 starting sample: 4295 ending line: 3033 ending sample: 4304 texclass range limit: 2 percentage of habitat defined: 3.4, assigned DN = 255 output image file: nufanfmud4.img signature file: mud5.sig starting line: 3024 starting sample: 4295 ending line: 3043 ending sample: 4314 texclass range limit: 2 percentage of habitat defined: 8.6, assigned DN = 255 output image file: nufanfmud5.img signature file: mud6.sig starting line: 2934 starting sample: 4532 ending line: 2943 ending sample: 4541 texclass range limit: 2 percentage of habitat defined: 5.9, assigned DN = 255 output image file: nufanfmud6.img signature file: mud7.sig starting line: 3019 starting sample: 4438 ending line: 3028 ending sample: 4447 texclass range limit: 2 percentage of habitat defined: 5.5, assigned DN = 255 output image file: nufanfmud7.img signature file: mud9.sig starting line: 7466 starting sample: 10206 ending line: 7485 ending sample: 10225 texclass range limit: 2 percentage of habitat defined: 2.6, assigned DN = 255 output image file: nufanfmud9.img signature file: mud10.sig starting line: 7393 starting sample: 10151 ending line: 7402 ending sample: 10160 texclass range limit: 2 percentage of habitat defined: 7.5, assigned DN = 255 output image file: nufanfmud10.img signature file: mud11.sig starting line: 7064 starting sample: 10425 ending line: 7073 ending sample: 10434 texclass range limit: 2 percentage of habitat defined: 1.3, assigned DN = 255 output image file: nufanfmud11.img signature file: mud12.sig starting line: 7064 starting sample: 10425 ending line: 7083 ending sample: 10444 texclass range limit: 2 percentage of habitat defined: 5.4, assigned DN = 255 output image file: nufanfmud12.img Combined nufanfmud1.img nufanfmud2.img nufanfmud3.img nufanfmud4.img nufanfmud5.img nufanfmud6.img nufanfmud7.img nufanfmud9.img nufanfmud10.img nufanfmud11.img nufanfmud12.img converted to .tiff and sent to Nadine Golden for further processing Process_Date: 2006 Process_Step: Process_Description: ------------------------------Nadine Golden starts here----------------------- //Created grids and polygons from image files from Jamie Conrad. 1. Converted all images to grids in ArcInfo using imagegrid command 2. Converted grids to polygons for editing using ArcToolBox-->Conversion Tools-->From Raster-->Raster to Polygon (*Note: unchecked "simplify polygons") 3. Created a back layer for all other data. In this data set the all data layer was set to 170 gridcode to represent mixed areas. 4. Imported Granite layer from manual drawing of granite boundaries by Jamie Conrad done in Adobe Illustrator. 5. Edited, cleaned, polygons for individual layers: cleaned nadar data converted gridcode to correct grid code if signature was incorrect 6. Converted all edited polygons back to grids using ArcToolBox-->Conversion Tools-->t0 Raster-->Polygon to Raster ------------------------------------------------------------------------------------------- //Merged final grids to make one grid of all layers 1. Merged all grids in Spatial Analyst tool Raster Calculator -set option to Extent-->union of inputs. -used the merge command in raster calculator dialogue box ------------------------------------------------------------------------------------------- //Filtered grid to decrease number of polygons steps: 1. Filtered original grid using ArcToolBox-->Spatial Analyst Tools-->Generalization-->Majority Filter Settings: Number of Neighbors to Use: "4" Replacement Threshold: "Majority" 2. Filter process wiped out some of the smaller areas of sediment in the bedrock (non-granite) region. Went back to final grid before filter and copied the sediment areas within the bedrock. Copied these small mixed sediment regions to final polygon. Process_Date: 2006 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 25567 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: NAD_1983_UTM_Zone_10N Polar_Stereographic: Straight-Vertical_Longitude_From_Pole: -123 Standard_Parallel: 0.999600 False_Easting: 500000.000 False_Northing: 0.000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000016 Ordinate_Resolution: 0.000016 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic ReferenceSystem 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.2572222 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: FID GRIDCODE Alias: GRIDCODE Data type: Number Width: 10 MEGA_ID Alias: MEGA_ID Data type: String Width: 10 BOTTOM_ID Alias: BOTTOM_ID Data type: String Width: 10 MSO_MCR_ID Alias: MSO_MCR_ID Data type: String Width: 10 MDFIR_ID Alias: MDFIR_ID Data type: String Width: 10 GEO_UNIT Alias: GEO_UNIT Data type: String Width: 10 Area Alias: Area Data type: String Width: 200 HAB_TYPE Alias: HAB_TYPE Data type: String Width: 50 Benthic habitat classification attributes: megahabitat, bottom induration, meso-macrohabitat, and modifiers from Green and others, 1999. CODE is a combination of the habitat attributes. MEGA_ID is S for “Shelf.” BOTTOM_ID is h for hard bottom, m for mixed hard and soft bottom, or s for soft sediment bottom MSO_MRC_ID are macrohabitats described in Greene and others 1999. MDFR_ID are modifiers to describe the texture or lithology of the seafloor and appear in the code preceded by an underscore (_). Entity_and_Attribute_Detail_Citation: Habitat attribute types are Modified after Greene, G.H., Yoklavich, M.M., Starr, R.M., O'Connell, V.M., Wakefield, W.W., Sullivan, D.E., McRea, J.E., and Cailliet, G.M., 1999. A classification scheme for deep seafloor habitats. Oceanologica Acta, 22, 663-678. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology Program (CMGP) Contact_Person: Roberto J. Anima Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: USGS, 345 Middlefield Road, MS 999 City: Palo Alto State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5212 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: ranima@usgs.go Distribution_Liability: Please recognize the U.S. Geological Survey (USGS) as the source of this information. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Metadata_Reference_Information: Metadata_Date: 2005 Metadata_Review_Date: 2005 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology Program (CMGP) Contact_Person: Roberto J. Anima Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: USGS, 345 Middlefield Road, MS 999 City: Santa Cruz State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5212 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: ranima@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none