Identification_Information: Citation: Citation_Information: Originator: Guy R. Cochrane Originator: Greg S. Gabel Publication_Date: 2002 Title: bsyc1m.tif - Sidescan sonar image of Big Sycamore reserve sidescan sonar backscatter image in the Nearshore Benthic Habitat Mapping Project S. California map series. Edition: Version 1.0, May 30, 2002 Geospatial_Data_Presentation_Form: map Online_Linkage: Larger_Work_Citation: Citation_Information: Originator: Guy R. Cochrane Originator: Nicole Nasby Originator: Jane A. Reid Originator: Ben Waltenberger Originator: Kristen Lee Publication_Date: 2003 Title: Nearshore Benthic Habitat GIS for the Channel Islands National Mairne Santuary and Southern California State Fisheries Reserves, Volume 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 03-85 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: Description: Abstract: The sidescan sonar image of the nearshore seafloor (0 to 100 m water depths) of the Big Sycamore reserve area was mosaicked from data collected in 1998. A Klein 2000 sidescan system was used for geophysical surveying. A Triton Elics Isis brand side-scan data recording system was used on the cruise. The 1998 survey was navigated with a Leica Differential Global Positioning System (DGPS) which provided a ship position with accuracy of 1-5 m in DGPS mode. At times during the cruise differential signal was interrupted. In non-differential mode, the receiver provided a position with 30-50 m accuracy. A KVH Industries Inc. azimuth digital gyro-compass provided ship headings with 0.5 degree accuracy. Navigation data were recorded using Yo-Nav version 1.19 (Gann, 1992). The sidescan fish was towed approximately 30 m above the seafloor. The distance of the fish behind the ship was not known during this survey and must be estimated when the data are processed in order to produce the sidescan image mosaics. The resolution of the processed data mosaics is 0.2 m. The data are presented here at a resolution of 1 m. 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 Nearshore Benthic Habitat Mapping Project. See for more information. 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 S. California coast. Supplemental_Information: Additional information about the field activities from which this data set was derived are available online at http://walrus.wr.usgs.gov/infobank/b/b198sc/html/b-1-98-sc.meta.html 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: 1998 Ending_Date: 2003 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: As Needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -119.0829544 East_Bounding_Coordinate: -118.9423828 North_Bounding_Coordinate: 34.0901184 South_Bounding_Coordinate: 34.0068321 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: Isis Theme_Keyword: MIPS Place: Place_Keyword_Thesaurus: None Place_Keyword: Channel Islands Place_Keyword: CA Place_Keyword: North Pacific Ocean Place_Keyword: Northern Pacific Ocean Place_Keyword: USA Place_Keyword: Channel Islands National Marine Sanctuary Place_Keyword: Southern California Place_Keyword: Big Sycamore Reserve Place_Keyword: Santa Barbara Place_Keyword: Point Dume Place_Keyword: Ventura Place_Keyword: Point Mugu 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: Guy R. Cochrane Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology Program(CMGP) Contact_Position: Research Geophysicist 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) 329-5076 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: gcochrane@usgs.gov Native_Data_Set_Environment: SunOS, 5.7, sun4u UNIX ARC/INFO version 8.0.2 ArcView GIS 3.2a Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Accuracy unknown Logical_Consistency_Report: Logical Consistency untested. Completeness_Report: Completeness unknown Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: On the order of 10 meters. Lineage: Process_Step: Process_Description: xtfin FILES> /work2/guy/sycamore/syc2=/work2/guy/sycamore/syc2.xtf PARAMS> LCHAN=2,RCHAN=1 PARAMS> RATE1 Process_Date: 19981104 Process_Step: Process_Description: dk2dk FILES> /work2/guy/sycamore/syc2_dk=/work2/guy/sycamore/syc2 PARAMS> SL=3,SS=1,NL=21390,NS=4096,LINC=1,SINC=1 Process_Date: 19981104 Process_Step: Process_Description: navmerge FILES> /work2/guy/sycamore/syc2,/work2/guy/b198sc/b198sc PARAMS> LATLON Process_Date: 19981104 Process_Step: Process_Description: snrshade FILES> /work2/guy/sycamore/syc2_snr=/work2/guy/sycamore/syc2 PARAMS> MIN=1,MAX=254 Process_Date: 19981104 Process_Step: Process_Description: navflt FILES> /work2/guy/sycamore/syc2_snr PARAMS> NR=51,ALTITUDE Process_Date: 19981104 Process_Step: Process_Description: navflt FILES> /work2/guy/sycamore/syc2_snr PARAMS> NR=101,HEADING Process_Date: 19981104 Process_Step: Process_Description: slr2gr FILES> /work2/guy/sycamore/syc2_snr_sg=/work2/guy/sycamore/syc2_snr PARAMS> PIXRES=0.25,NANGLE=90,FANGLE=0.5,LOFFSET=0,ROFFSET=0 Process_Date: 19981104 Process_Step: Process_Description: shade FILES> /work2/guy/sycamore/syc2_snr_sg_sh=/work2/guy/sycamore/syc2_snr_sg PARAMS> MULT,MIN=1,MAX=254,SL=1,EL=21390 Process_Date: 19981104 Process_Step: Process_Description: destripe FILES> /work2/guy/sycamore/syc2_snr_sg_sh_ds2=/work2/guy/sycamore/syc2_snr_sg_sh PARAMS> LNL=501,LNS=501,LLOW=1,LHIGH=254,HNL=501,HNS=31,HLOW=1,HHIGH=254 Process_Date: 19981104 Process_Step: Process_Description: stretch FILES> /work2/guy/sycamore/syc2_str=/work2/guy/sycamore/syc2_pr PARAMS> STRETCH="0;0 34;39 255;255" Process_Date: 19981110 Process_Step: Process_Description: deltav FILES> /work2/guy/sycamore/syc2_dv=/work2/guy/sycamore/syc2_pr PARAMS> PIXRES=0.25 Process_Date: 19981110 Process_Step: Process_Description: snrgeom FILES> /work2/guy/sycamore/syc2_gm=/work2/guy/sycamore/syc2_dv PARAMS> UTM PARAMS> WGS84 PARAMS> ZONE=10,SCALE=0.9996 PARAMS> SLAT=34.008,SLON=-119.0625872318473,ELAT=34.08571359836975,ELON=-118.943 6757382673,ROTATION=0,PIXRES=0.25 Process_Date: 19981110 Process_Step: Process_Description: digmos FILES> /work2/guy/sycamore/syc2_mos=/work2/guy/sycamore/syc2_gm PARAMS> PROJECTION PARAMS> SLAT=34.008,SLON=-119.083,ELAT=34.092,ELON=-118.94 Process_Date: 19981110 Process_Step: Process_Description: maskim FILES> /work2/guy/sycamore/syc2_msk=/work2/guy/sycamore/syc2_mos,/work2/guy/syca more/syc2_ras PARAMS> Process_Date: 19981110 Process_Step: Process_Description: filter FILES> /work2/guy/sycamore/syc_fil3=/work2/guy/sycamore/syc_mos PARAMS> LPFZ PARAMS> NL=3,NS=3,LOW=1,HIGH=255,PERCENT=0,MULT=1 Process_Date: 19990202 Process_Step: Process_Description: filter FILES> /work2/guy/sycamore/syc_fil5=/work2/guy/sycamore/syc_fil3 PARAMS> LPFZ PARAMS> NL=5,NS=5,LOW=1,HIGH=255,PERCENT=0,MULT=1 Process_Date: 19990202 Process_Step: Process_Description: filter FILES> /work2/guy/sycamore/syc_fil7=/work2/guy/sycamore/syc_fil5 PARAMS> LPFZ PARAMS> NL=7,NS=7,LOW=1,HIGH=255,PERCENT=0,MULT=1 Process_Date: 19990202 Process_Step: Process_Description: scale FILES> /work2/guy/sycamore/sycfz71m=/work2/guy/sycamore/syc_fz7 PARAMS> NL=9838,NS=13574 Process_Date: 20010313 Process_Step: Process_Description: stretch FILES> /work2/guy/sycamore/sycfz71ms=/work2/guy/sycamore/sycfz71m PARAMS> STRETCH="0;255 1;1 254;254 255;254" Process_Date: 20010313 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology Program (CMGP) Contact_Person: Guy R. Cochrane Contact_Position: Geophysicist 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) 329-5076 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: gcochrane@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. 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: 20030115 Metadata_Review_Date: 20030621 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology Program (CMGP) Contact_Person: Guy R. Cochrane Contact_Position: Geophysicist 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) 329-5076 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: gcochrane@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 Metadata_Use_Constraints: none