Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2009 Title: SONAR_1MIN.SHP: Sidescan-sonar 1-minute navigation collected by the U.S. Geological Survey off the southern shore of Martha's Vineyard, MA, 2007. (ESRI POINT SHAPEFILE) Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Woods Hole Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2008/1288/GIS_catalog/Tracklines/sonar_1min.zip Online_Linkage: http://pubs.usgs.gov/of/2008/1288/html/gis.html Larger_Work_Citation: Citation_Information: Originator: Denny, J.F. Originator: Danforth, W.W. Originator: Foster, D.S. Originator: Sherwood, C.R. Publication_Date: 2009 Title: Geophysical Data Collected off the South Shore of Martha's Vineyard, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: online Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Woods Hole Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2008/1288/ Description: Abstract: The USGS Woods Hole Science Center conducted a nearshore geophysical survey offshore of the southern coast of Martha's Vineyard, in the vicinity of the Martha's Vineyard Coastal Observatory (MVCO) in August 2007. This mapping program was part of a larger research effort supporting the Office of Naval Research (ONR) Ripples Directed-Research Initiative (DRI) studies at MVCO by providing data collection and modeling. The geophysical data will be used to provide initial conditions for wave and circulation models for the study area. Ultimately, geophysical mapping, oceanographic measurements and modeling will help to improve our understanding of coastal sediment-transport processes. The geophysical mapping utilized a suite of high-resolution instrumentation to map the surficial sediment distribution, depth and sub-surface geology: dual-frequency 100/500 KHz sidescan-sonar system, 234-KHz interferometric sonar, and 500 Hz -12 KHz chirp sub-bottom profiler. The survey was conducted aboard the M/V Megan Miller August 9-13, 2007. The study area covers 35 square kilometers from about 0.2 km to 5-km offshore of the south shore of Martha's Vineyard, and ranges in depth from ~ 5 to 20 meters. Purpose: This dataset contains 1-minute navigation positions for approximately 620 km of shore-parallel sidescan-sonar data collected by the U.S. Geological Survey off the southern shore of Martha's Vineyard, 2007. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20070813 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.599937 East_Bounding_Coordinate: -70.513351 North_Bounding_Coordinate: 41.346920 South_Bounding_Coordinate: 41.303623 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Field Activity Number 07011 Theme_Keyword: R/V Megan Miller Theme_Keyword: Sidescan Sonar Theme_Keyword: 1-minute Navigation Positions Theme_Keyword: ESRI Point Shapefile Theme_Keyword: L3-Klein System 3000 Digital Side Scan Sonar Theme_Keyword: Dual-frequency sidescan-sonar (100/500 kHz) Theme_Keyword: side scan sonar Theme: Theme_Keyword_Thesaurus: ISO 19115 Theme_Keyword: oceans Theme_Keyword: oceans and estuaries Theme_Keyword: oceans and coastal Theme_Keyword: location Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: North America Place_Keyword: Southeastern Massachusetts Place_Keyword: Martha's Vineyard Place_Keyword: Cape Cod Place_Keyword: Elizabeth Islands Place_Keyword: Atlantic Ocean Place_Keyword: United States Place_Keyword: Northeast United States Place_Keyword: Atlantic Ocean Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2008/1288/GIS_catalog/Tracklines/sonar_1min_sm.jpg Browse_Graphic_File_Description: Thumbnail image of sidescan-sonar 1-minute navigation positions collected by the U.S. Geological Survey off the southern shore of Martha's Vineyard, 2007 Browse_Graphic_File_Type: JPEG Data_Set_Credit: U.S. Geological Survey Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850 Cross_Reference: Citation_Information: Originator: Danforth, W.W. Originator: O'Brien, T.F. Originator: Schwab, W.C. Publication_Date: 1991 Title: USGS image processing system: near real-time mosaicking of high-resolution sidescan-sonar data Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Sea Technology Issue_Identification: January 1991 Publication_Information: Publication_Place: Arlington, VA Publisher: Sea Technology Cross_Reference: Citation_Information: Originator: William W. Danforth Publication_Date: 1997 Title: XSonar/ShowImage: A complete system for rapid sidescan-sonar processing and display. Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Open-File Report Issue_Identification: 97-686 Publication_Information: Publication_Place: Woods Hole, MA Publisher: U.S. Geological Survey Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attributes relay information about the object type (i.e. point), positions, line number, Julian Day, Time and USGS unique cruise identification number. Attributes were checked for consistency and for accuracy of descriptive information. Logical_Consistency_Report: 1-minute navigation positions were edited during processing in order to remove spurious points. Completeness_Report: All available data were used to create the 1-minute navigation shapefile. Sidescan-sonar data were only collected along shore-parallel tracklines; sonar data were not collected along shore-perpendicular tie lines. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Differential Global Positioning System (DGPS) navigation data were acquired with a LGBX Pro receiver and sent directly to the sidescan-sonar acquisition software, L3-Klein Associates, SonarPro. The LGBX Pro received DGPS positions from a DGPS antenna located on the starboard, aft roof of the acquisition van. The layback of the sidescan-sonar towfish was measured with a digital block cable counter. The cable counter data were sent directly to SonarPro as a serial string. SonarPro computes the actual tow-fish position using the DGPS input and the layback. The following offsets are measured prior to deployment of the sidescan-sonar tow-fish and entered into SonarPro: height of the block, offset from DGPS antenna to the block, and height of the DGPS antenna above the waterline. Prior to deploying the sidescan-sonar tow-fish, the tow-fish is hauled to the block in order to zero the cable counter. DGPS accuracy is 1 to 3 meters, depending on the distance from a US Coast Guard coastal repeater station (http://www.navcen.uscg.gov/). Lineage: Source_Information: Source_Citation: Citation_Information: Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20070813 Source_Currentness_Reference: ground condition Source_Contribution: Data were acquired with an L3-Klein Associates 3000 digital, dual-frequency, sidescan-sonar (www.l-3klein.com). Dual frequencies are nominally 100 (132 kHz) and 500 (445 kHz) kHz. The sidescan-sonar was towed aft of the R/V Megan Miller. A digital cable-out display was used to measure tow-fish layback. Layback and DGPS input were used by the SonarPro acquisition software to calculate position of the sonar tow-fish and store in the raw data files. Line spacing varied from 40 meter in ~ 5 to 15 meter water depth to 75 meters in ~15 - 25 meter water depth. Data files were recorded with SonarPro 10.0 in XTF (extended-Triton Format) format at a 0.03-sec ping rate yielding a 50-meter range (100-meter swath). The 100 kHz data were used to generate the sidescan-sonar mosaic. The data range within the sidescan-sonar mosaic (digital number values (DN) of the 8-bit image) is 0 - 250, with the background value (i.e. No DATA) set to 255. Process_Step: Process_Description: Navigation data were extracted at 1 minute intervals from the raw sidescan sonar data (XTF format) during the 'demultiplex' phase of data processing within XSonar/ShowImage sidescan-sonar processing software (Danforth and others, 1991) and stored in ASCII files. Software: XSonar/ShowImage (no version) Process_Date: 2008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: A c-shell script was used to reformat the output from degrees decimal minutes to decimal degrees. Proj (version 4.6.1) and AWK (GNU 3.1.5) were used to convert decimal degrees to eastings and northings (based on UTM Zone 19 N, WGS84) and to reformat the output as a comma delimited ASCII file including headers listing field names (Easting, Northing, Line Number, Julian Day, Hour, Minute, Second, Longitude, Latitude). Process_Date: 2008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: The ASCII file (*.csv) was imported into ESRI ArcMap 9.2 using Tools - Add XY Data and converted to an event theme. The event theme was then saved to a point shapefile and the projection was defined as Geographic Coordinate System, WGS84 (GCS_WGS_1984). The point shapefile was visually inspected for spurious data points and these data points were manually deleted. Process_Date: 2008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: Cruise_ID field was added to the attribute table within ArcMap 9.2. Software: XTools Pro (5.3.0), ArcGIS 9.2 Process_Date: 2008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 4588 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: sonar_1min Entity_Type_Definition: ESRI point shapefile Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: East Attribute_Definition: Navigation position in Easatings (UTM Zone 19N, WGS84, meters) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 366147.01 Range_Domain_Maximum: 373348.26 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: North Attribute_Definition: Navigation position in Northings (UTM Zone 19N, WGS84, meters) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4573579.31 Range_Domain_Maximum: 4578483.83 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Line Attribute_Definition: Line and file number corresponding to sidescan-sonar file. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Naming convention for L3-Klein Associates SonarPro sidescan-sonar acquisition software. Format, l1f1_07081200 where, l=line, 1=line number, f=file, 1=file number, _0708 = MMDD, 1200 = HRMN Attribute: Attribute_Label: JD Attribute_Definition: Julian Day during which sonar data were collected. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 221 Range_Domain_Maximum: 225 Attribute_Units_of_Measure: Julian Day (Year 2007) Attribute: Attribute_Label: Hr Attribute_Definition: Time (hour) navigation position was collected. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 23 Attribute_Units_of_Measure: Hour - 24-hr Day Attribute: Attribute_Label: Min Attribute_Definition: Time (Minute) navigation position was collected. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: Minute Attribute: Attribute_Label: Sec Attribute_Definition: Time (seconds) navigation position was collected. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: Second Attribute: Attribute_Label: Lon Attribute_Definition: Longitude of position (decimal degrees, WGS84) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -70.599938 Range_Domain_Maximum: -70.513352 Attribute_Units_of_Measure: Decimal Degrees Attribute: Attribute_Label: Lat Attribute_Definition: Latitude of position (decimal degrees, WGS84) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 41.303623 Range_Domain_Maximum: 41.34692 Attribute_Units_of_Measure: Decimal Degrees Attribute: Attribute_Label: Cruise_ID Attribute_Definition: Unique USGS Cruise Identification Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 07011 Enumerated_Domain_Value_Definition: USGS Cruise Identification Number, where the first two digits represent calendar year and the last three digits represent cruise number Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: WinZip Format_Version_Number: 9.0 Format_Information_Content: This WinZip file contains a shapefile of sidescan-sonar 1-minute navigation collected by the U.S. Geological Survey off the southern shore of Martha's Vineyard, MA, 2007 and associated metadata. File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 266 KB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2008/1288/GIS_catalog/Tracklines/sonar_1min.zip Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Fees: none Technical_Prerequisites: This zip file contains data available in Environmental Systems Research Institute (ESRI) point shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20091004 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane F. Denny Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x 2311 Contact_Facsimile_Telephone: 508-457-2311 Contact_Electronic_Mail_Address: jdenny@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile