Metadata: Identification_Information: Citation: Citation_Information: Originator: P.S. Chavez, Jr. Originator: J. Isbrecht Originator: G. Gabel Originator: P. Galanis Originator: S. Ross Originator: R. Anima Originator: S. Eittreim Originator: N. Maher Originator: S.C. Sides Originator: D.L. Soltesz Originator: M.G. Velasco Originator: Florence L. Wong Publication_Date: 2001 Title: BSCATxx.TIF, QUAD75 - Sidescan sonar images and quadrangle index of the shelf seafloor in the Monterey Bay area from Point Ano Nuevo to Point Sur, California Edition: Version 1.0, February 13, 2001 Geospatial_Data_Presentation_Form: map Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Wong, F.L. Originator: Eittreim, S.E. Publication_Date: 2001 Title: Continental Shelf GIS for the Monterey Bay National Marine Sanctuary Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 01-179 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: Description: Abstract: The sidescan sonar image of the shelf seafloor of the Monterey Bay area was mosaicked from data collected between 1995 and 1998 with three systems: Klein (towed), Simrad EM1000 (hull mounted), and EM300 (hull mounted). The resolution of the processed data ranged from 40 cm to 2.5 m. The data are presented here at a resolution of 2.5 m north of Monterey Canyon and 5 m south of Monterey Canyon. The sonar image is divided into 24 tiles that cover all or part of 7.5-minute map quandrangles. The polygon layer QUAD75 is an index for the 7.5-minute quadrangles. This is one of a collection of digital files of a geographic information system of spatially referenced data related to the USGS Coastal and Marine Geology Program "Monterey Bay National Marine Sanctuary Project" . The data were collected and analyzed between 1994 and 2000. 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 about the shallower areas of the Monterey Bay National Marine Sanctuary. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1995 Ending_Date: 1998 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: As Needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.38230 East_Bounding_Coordinate: -121.79293 North_Bounding_Coordinate: 37.11902 South_Bounding_Coordinate: 36.21493 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Coastal Geology Theme_Keyword: Marine Geology Theme_Keyword: sidescan sonar Theme_Keyword: remote-sensing image Theme_Keyword: Klein Theme_Keyword: Simrad EM300 Theme_Keyword: Simrad EM1000 Place: Place_Keyword_Thesaurus: None Place_Keyword: Monterey Bay Place_Keyword: CA Place_Keyword: North Pacific Ocean Place_Keyword: Northern Pacific Ocean Place_Keyword: USA Place_Keyword: Monterey Bay National Marine Sanctuary Place_Keyword: Central California Place_Keyword: Point Ano Nuevo Place_Keyword: Santa Cruz Place_Keyword: Moss Landing Place_Keyword: Monterey Place_Keyword: Point Sur Place_Keyword: Ano Nuevo Place_Keyword: Davenport Place_Keyword: Santa Cruz Place_Keyword: Soquel Place_Keyword: Watsonville Place_Keyword: Moss Landing Place_Keyword: Marina Place_Keyword: Monterey Place_Keyword: Seaside Place_Keyword: Soberanes Point Place_Keyword: Point Sur Place_Keyword: Pfieffer Point Access_Constraints: None Use_Constraints: 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. This information is not intended for navigational purposes. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Florence L. Wong Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Native_Data_Set_Environment: SunOS, 5.7, sun4u UNIX ARC/INFO version 8.0.2 Browse_Graphic: Browse_Graphic_File_Name: http://geopubs.wr.usgs.gov/open-file/of01- 179/images/bsimap.gif Browse_Graphic_File_Description: location map of backscatter images Browse_Graphic_File_Type: GIF Data_Quality_Information: Logical_Consistency_Report: Not applicable for raster data. Completeness_Report: Sidescan sonar images are discontinuous where survey tracklines were not run. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: P.S. Chavez, Jr. Originator: J. Isbrecht Originator: G. Gabel Originator: P. Galanis Originator: S. Ross Originator: R. Anima Originator: S. Eittreim Publication_Date: 1998 Title: Seafloor image map of the Monterey Bay region Geospatial_Data_Presentation_Form: map Online_Linkage: http://TerraWeb.wr.usgs.gov/TRS/projects/MontereySonar/ Type_of_Source_Media: electronic Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1995 Ending_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Chavez and others, 1998 Source_Contribution: explanation of methods, Klein, EM1000 data Source_Information: Source_Citation: Citation_Information: Originator: S.L. Eittreim Originator: A.J. Stevenson Originator: N. Maher Publication_Date: 1998 Title: Seafloor sidescan sonar image files as 5-m grids Geospatial_Data_Presentation_Form: map Type_of_Source_Media: electronic file Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Eittreim and others, 1998 Source_Contribution: EM300 sidescan sonar data Source_Information: Source_Citation: Citation_Information: Originator: Chavez, P.S., Jr. Originator: Isbrecht, J. Originator: Galanis, P. Originator: Gabel, G.L. Originator: Sides, S.C. Originator: Soltesz, D.L. Originator: Ross, S.L. Originator: Velasco, M.G. Title: Processing, mosaicking and management the Monterey Bay digital side-scan sonar images. Publication_Date: 2001 Series_Information: Series_Name: Marine Geology Issue_Identification: xx Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Chavez and others, 2001 Source_Contribution: description of image processing Process_Step: Process_Description: Klein sidescan sonar data. USGS Coastal and Marine Geology (CMG) image processing group completed 1-meter mosaic of sidescan sonar image for survey area between Point Ano Nuevo and Monterey Canyon. CMG processing blocks were numbered 1 through 13. CMG filename mbay_mosaic_blk01_blk13_1m. Process_Date: 19980930 Process_Step: Process_Description: Converted Klein 1-meter mosaic from raw format (.BIL) to ArcInfo grid. Cell values of 0 include NODATA. Extracted polygon coverage of zero-value cells or cell clusters. Modified coverage to retain truly NODATA polygons; converted polygon coverage to grid mask. Applied NODATA mask to mosaic grid to redefine cells with 0 where there is no data to NODATA, leaving other 0 cells unchanged. Added 1 to value of grid so that lowest pixel value is 1. Remapped range of sidescan grid values for better contrast. Process_Date: 200006 Process_Step: Process_Description: EM1000 sidescan data from inner shelf between Moss Landing and Monterey. Image (.BIL) files with 2.5-m pixels for north half and south half downloaded from CMG image processing group. Converted images to ArcInfo grids. Re-projected coordinates from Mercator projection to UTM. Combined north and south grids into one. Process_Date: 199803 Process_Step: Process_Description: EM300 sidescan data south of Monterey Canyon and west of location of EM1000 data provided as 5-m ArcInfo grids by Norman Maher (MBARI). Process_Date: 200010 Process_Step: Process_Description: Merged all grids of sonar image and subdivided them into 7.5-minute quadrangles. Cell size north of Monterey Canyon is 2.5 m; south of Monterey Canyon is 5 m. Converted grids to TIFF images. Process_Date: 200002 to 200012 Process_Step: Process_Description: First draft of metadata created by F.L. Wong using a modified version of FGDCMETA.AML on ARC/INFO data set BSCATxx.TIF Process_Date: 20010213 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 5585 maximum for 2.5-m pixel images. 3505 for 5-m images Column_Count: 4522 maximum for 2.5-m pixels, 2267 for 5-m pixels Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123.00000 Latitude_of_Projection_Origin: 0.00000 False_Easting: 500000.00 False_Northing: 0.00 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 2.5 or 5 Ordinate_Resolution: 2.5 or 5 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: nad83 Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Sidescan sonar data are presented as TIFF images where the pixel value represents the backscatter intensity of the sonar signal. Images BSCATxx.TIF for xx = 1 to 9, 10n, and 11n have 2.5-m pixel resolution with pixel values stretched and desampled from 1-m pixel Klein sidescan data collected during these surveys J2-95-MB, J6-95-MB, M2-95-MB, M1-96-MB, J3-97-MB, and J3-98-MB (http://walrus.wr.usgs.gov/infobank). Images BSCATyy.TIF for yy = 10s, 11s, and 12 through 22 have 5-m pixel resolution with pixel values stretched from processed EM1000 (P1-95-MB) and EM300 (A4-98-MB) data (http://walrus.wr.usgs.gov/infobank). > IMAGE ROWS COLS FILESIZE (Mb) > bscat01.tif 5281 4486 24 > bscat02.tif 2443 2237 5 > bscat03.tif 3995 2568 10 > bscat04.tif 5585 4500 25 > bscat05.tif 3944 4507 18 > bscat06.tif 4531 4514 20 > bscat07.tif 2884 1360 4 > bscat08.tif 2406 2901 7 > bscat09.tif 3285 4514 15 > bscat10n.tif 3306 4522 15 > bscat11n.tif 3506 2791 3 > bscat10s.tif 1130 2260 10 > bscat11s.tif 1105 1321 1 > bscat12.tif 2795 565 2 > bscat13.tif 2798 2264 6 > bscat14.tif 2801 979 3 > bscat15.tif 2795 565 2 > bscat16.tif 2798 2267 6 > bscat17.tif 269 363 1 > bscat18.tif 2795 566 2 > bscat19.tif 2798 1443 4 > bscat20.tif 2795 1583 4 > bscat21.tif 2797 1526 4 > bscat22.tif 763 1506 1 The image boundaries in UTM coordinates are > IMAGE XMIN YMIN XMAX YMAX > bscat01.tif 555519 4095055 566734 4108258 > bscat02.tif 566623 4095136 572216 4101243 > bscat03.tif 560422 4085148 566842 4095136 > bscat04.tif 566733 4081268 577983 4095231 > bscat05.tif 577855 4081363 589123 4091223 > bscat06.tif 588977 4081472 600262 4092800 > bscat07.tif 600100 4081596 603500 4088806 > bscat08.tif 570857 4075349 578110 4081364 > bscat09.tif 577983 4073261 589268 4081473 > bscat10n.tif 589122 4073330 600427 4081595 > bscat11n.tif 600263 4072970 607241 4081735 > bscat10s.tif 589125 4067604 600425 4073254 > bscat11s.tif 600265 4067729 606870 4073254 > bscat12.tif 586590 4053629 589415 4067604 > bscat13.tif 589270 4053739 600590 4067729 > bscat14.tif 600425 4053864 605320 4067869 > bscat15.tif 586730 4039764 589555 4053739 > bscat16.tif 589415 4039874 600750 4053864 > bscat17.tif 600590 4052659 602405 4054004 > bscat18.tif 586870 4025899 589700 4039874 > bscat19.tif 589555 4026009 596770 4039999 > bscat20.tif 581930 4012034 589845 4026009 > bscat21.tif 589700 4012144 597330 4026129 > bscat22.tif 589845 4008449 597375 4012264 Polygon coverage QUAD75 consists of the outlines for 7.5-minute quadrangles by which the backscatter images are numbered. Its attributes are: > QUAD - quadrangle number 1 through 22 > NAME - informal quadrangle names adapted from standard > 7.5-minute topographic quadrangle names > 1 Ano Nuevo > 2 Davenport > 3 Santa Cruz W2 > 4 Santa Cruz W1 > 5 Santa Cruz > 6 Soquel > 7 Watsonville W > 8 Moss Landing W3 > 9 Moss Landing W2 > 10 Moss Landing W1 > 11 Moss Landing > 12 Marina W2 > 13 Marina W1 > 14 Marina > 15 Monterey W > 16 Monterey > 17 Seaside > 18 Soberanes Point W > 19 Soberanes Point > 20 Point Sur W > 21 Point Sur > 22 Pfieffer Point W Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 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. Resource_Description: USGS Open-File Report 01-179 Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: TIFF Format_Information_Content: sidescan sonar images of the seafloor Transfer_Size: 200 megabytes Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://geopubs.wr.usgs.gov/open- file/of01-179 Fees: none Metadata_Reference_Information: Metadata_Date: 20010327 Metadata_Review_Date: 200105 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none