Identification_Information: Citation: Citation_Information: Originator: Guy R. Cochrane Originator: Greg S. Gabel Publication_Date: 2002 Title: smi1m.tiff - Sidescan sonar image of San Miguel Island Edition: (Version 1.0, July 10, 2002) Geospatial_Data_Presentation_Form: map 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 Marine Santuary and Southern California State Fisheries Reserves, Volume 1 Series_Information: Series_Name: USGS Open-File Report Issue_Identification: USGS OFR 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: -120.29167 East_Bounding_Coordinate: -120.45833 North_Bounding_Coordinate: 34.025 South_Bounding_Coordinate: 33.96667 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: 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: 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 ArcInfo 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> /work1/gregg/b1-99-sc/L3=/work1/gregg/b1-99-sc/Mig3.XTF PARAMS> LCHAN=2,RCHAN=1 PARAMS> RATE2 Process_Date: 20001115 Process_Step: Process_Description: navmerge FILES> /work1/gregg/b1-99-sc/L3,/work1/gregg/b1-99-sc/b199sc PARAMS> LATLON Process_Date: 20001205 Process_Step: Process_Description: snrshade FILES> /work1/gregg/b1-99-sc/L3_snr=/work1/gregg/b1-99-sc/L3 PARAMS> MIN=1,MAX=254 Process_Date: 20001206 Process_Step: Process_Description: navflt FILES> /work1/gregg/b1-99-sc/L3_snr PARAMS> NR=9,ALTITUDE Process_Date: 20001206 Process_Step: Process_Description: navflt FILES> /work1/gregg/b1-99-sc/L3_snr PARAMS> NR=101,HEADING Process_Date: 20001206 Process_Step: Process_Description: slr2gr FILES> /work1/gregg/b1-99-sc/L3_snr_sg=/work1/gregg/b1-99-sc/L3_snr PARAMS> PIXRES=0.1,NANGLE=90,FANGLE=0.5,LOFFSET=0,ROFFSET=0 Process_Date: 20001206 Process_Step: Process_Description: shade FILES> /work1/gregg/b1-99-sc/L3_snr_sg_sh=/work1/gregg/b1-99-sc/L3_snr_sg PARAMS> MULT,MIN=1,MAX=254,SL=1,EL=8000 Process_Date: 20001206 Process_Step: Process_Description: destripe FILES> /work1/gregg/b1-99-sc/L3_snr_sg_sh_ds2=/work1/gregg/b1-99-sc/L3_snr_sg_sh PARAMS> LNL=501,LNS=501,LLOW=1,LHIGH=254,HNL=501,HNS=31,HLOW=1,HHIGH=254 Process_Date: 20001206 Process_Step: Process_Description: deltav FILES> /work1/gregg/b1-99-sc/L3_dv=/work1/gregg/b1-99-sc/L3_pr PARAMS> PIXRES=0.1 Process_Date: 20001206 Process_Step: Process_Description: snrgeom FILES> /work1/gregg/b1-99-sc/L3_gm=/work1/gregg/b1-99-sc/L3_dv PARAMS> UTM PARAMS> WGS84 PARAMS> ZONE=10,SCALE=0.9996 PARAMS> SLAT=33.96667,SLON=-120.45833,ELAT=34.025,ELON=-120.29167,ROTATION=0,PIX RES=0.2 Process_Date: 200010117 Process_Step: Process_Description: digmos FILES> /work1/gregg/b1-99-sc/L3_mos=/work1/gregg/b1-99-sc/L3_gm PARAMS> PROJECTION PARAMS> SLAT=33.96667,SLON=-120.45833,ELAT=34.025,ELON=-120.29167 Process_Date: 20010117 Process_Step: Process_Description: digmos FILES> /work1/gregg/b1-99-sc/L3_moz=/work1/gregg/b1-99-sc/L3_mos PARAMS> MANUAL PARAMS> ONL=34325,ONS=77818 PARAMS> ISL=1,ISS=1,IEL=34325,IES=77818,OSL=20,OSS=180 Process_Date: 20010118 Process_Step: Process_Description: maskim FILES> /work1/gregg/b1-99-sc/L3_msk=/work1/gregg/b1-99-sc/L3_moz,/work1/gregg/b1-99-sc/L3_ras PARAMS> Process_Date: 20010118 Process_Step: Process_Description: digmos FILES> /work1/gregg/b1-99-sc/b1-99-sc_mos=/work1/gregg/b1-99-sc/L3_msk PARAMS> ISL=1,ISS=1,IEL=34325,IES=77818,OSL=1,OSS=1 PARAMS> INPUT Process_Date: 20010118 Process_Step: Process_Description: digmos FILES> /work1/gregg/b1-99-sc/b1-99-sc_mos2=/work1/gregg/b1-99-sc/b1-99-sc_mos PARAMS> MANUAL PARAMS> ONL=34325,ONS=77818 PARAMS> ISL=15,ISS=100,IEL=34325,IES=77818,OSL=1,OSS=1 Process_Date: 20010118 Process_Step: Process_Description: filter FILES> /work1/gregg/b1-99-sc/b1-99-sc_mosf=/work1/gregg/b1-99-sc/b1-99-sc_mos2 PARAMS> LPFZ PARAMS> NL=3,NS=3,LOW=1,HIGH=255,PERCENT=0,MULT=1 Process_Date: 20010118 Process_Step: Process_Description: scale FILES> /work1/guy/mig/smi1m=/work1/guy/mig/smi_mos PARAMS> NL=6865,NS=15564 Process_Date: 20010118 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 6865 Column_Count: 15564 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.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: 20030116 Metadata_Review_Date: 20030815 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