Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2010 Title: DH_BathyTrackline: Survey lines along which interferometric and multibeam bathymetric sonar data were collected by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration offshore of Massachusetts between Duxbury and Hull Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1072 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2009/1072/GIS/shapefile/DH_BathyTrackline.zip Online_Linkage: http://pubs.usgs.gov/of/2009/1072/html/appendix1.html Larger_Work_Citation: Citation_Information: Originator: Walter A. Barnhardt Originator: Seth D. Ackerman Originator: Brian D. Andrews Originator: Wayne E. Baldwin Publication_Date: 2010 Title: Geophysical and Sampling Data from the Inner Continental Shelf: Duxbury to Hull, Massachusetts. Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1072 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2009/1072/ Description: Abstract: These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, Woods Hole Science Center (WHSC). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of sea-floor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes due to natural or human impacts. The project is focused on the inshore waters (5-30 m deep) of Massachusetts between the New Hampshire border and Cape Cod Bay. Data collected for the mapping cooperative have been released in a series of USGS Open-File Reports (http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html). This spatial dataset is from the study area located between Duxbury and Hull Massachusetts, and consists of high-resolution geophysics (bathymetry, backscatter intensity, and seismic reflection) and ground validation (sediment samples, video tracklines and bottom photographs). The data were collected during four separate surveys conducted between 2003 and 2007 (NOAA survey H10993 in 2003, USGS-WHSC survey 06012 in 2006, and USGS-WHSC surveys 07001 and 07003 in 2007) and cover more than 200 square kilometers of the inner continental shelf. Purpose: This data set contains trackline navigation for approximately 3240 km of interferometric (Systems Engineering and Assessment Ltd. (SEA) SWATHPlus-M) and multibeam (RESON SeaBat 8101 and 8125) bathymetric sonar data that were collected by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration, respectively, during three surveys (NOAA survey H10993 and USGS surveys 06012 and 07001) offshore of Massachusetts, between Duxbury and Hull. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20030820; 20060804; 20070422 Ending_Date: 20031003; 20060820; 20070502 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.827825 East_Bounding_Coordinate: -70.595637 North_Bounding_Coordinate: 42.346960 South_Bounding_Coordinate: 42.080481 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: Seafloor Theme_Keyword: Marine Geology Theme_Keyword: NOAA hydrographic survey registry number H10993 Theme_Keyword: WHSC field activity serial number 06012 Theme_Keyword: WHSC field activity serial number 07001 Theme_Keyword: bathymetry Theme_Keyword: swath bathymetry Theme_Keyword: interferometry Theme_Keyword: multibeam bathymetry Theme_Keyword: navigation tracklines Theme_Keyword: SEA SWATHPlus Theme_Keyword: SEA Submetrix Theme_Keyword: RESON 8101 Theme_Keyword: RESON 8125 Theme_Keyword: R/V Megan T. Miller Theme_Keyword: R/V Rafael Theme_Keyword: NOAA Ship Thomas Jefferson Theme_Keyword: NOAA Launch 1005 Theme_Keyword: NOAA Launch 1014 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: oceans and coastal Theme_Keyword: oceans and estuaries Theme_Keyword: location Place: Place_Keyword_Thesaurus: General Place_Keyword: North America Place_Keyword: United States Place_Keyword: Atlantic Ocean Place_Keyword: Massachusetts Place_Keyword: Boston South Shore Place_Keyword: Massachusetts Bay Place_Keyword: Cape Cod Bay Place_Keyword: Nantasket Beach Place_Keyword: Hull Bay Place_Keyword: Scituate Place_Keyword: Marshfield Place_Keyword: Brant Rock Place_Keyword: Duxbury Beach Place_Keyword: Duxbury Bay Stratum: Stratum_Keyword_Thesaurus: General Stratum_Keyword: Seafloor Stratum_Keyword: Surface Temporal: Temporal_Keyword_Thesaurus: General Temporal_Keyword: 2003 Temporal_Keyword: 2006 Temporal_Keyword: 2007 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 source of this information. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2009/1072/GIS/browse_jpg/big/DH_BathyTrackline.jpg Browse_Graphic_File_Description: Trackline navigation for interferometric and multibeam bathymetric sonar collected offshore of Massachusetts between Duxbury and Hull Browse_Graphic_File_Type: JPEG 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: Walter A. Barnhardt Originator: Brian D. Andrews Originator: Bradford Butman Publication_Date: 2006 Title: High-Resolution Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1293 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1293/ Cross_Reference: Citation_Information: Originator: Seth D. Ackerman Originator: Bradford Butman Originator: Walter A. Barnhardt Originator: William W. Danforth Originator: James M. Crocker Publication_Date: 2006 Title: High-Resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2006-1008 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2006/1008/ Cross_Reference: Citation_Information: Originator: Walter A. Barnhardt Originator: Brian D. Andrews Originator: Seth D. Ackerman Originator: Wayne E. Baldwin Originator: Christopher J. Hein Publication_Date: 2009 Title: High-Resolution Geological Mapping of the Inner Continental Shelf: Cape Ann to Salisbury Beach, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2007-1373 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2007/1373/ Cross_Reference: Citation_Information: Originator: NOAA (National Oceanic and Atmospheric Administration) Publication_Date: 2003 Title: Data Acquisition and Process Report - NOAA Ship Thomas Jefferson (August - November 2003) Series_Information: Series_Name: Data Acquisition and Process Report (DAPR) Issue_Identification: NOAA Ship Thomas Jefferson (August - November 2003) Publication_Information: Publication_Place: National Geophysical Data Center, Boulder, CO Publisher: National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC) Online_Linkage: http://surveys.ngdc.noaa.gov/mgg/NOS/DAPRs/NOAAShipTHOMASJEFFERSONAugNov2003.pdf Cross_Reference: Citation_Information: Originator: NOAA (National Oceanic and Atmospheric Administration) Publication_Date: 2003 Title: Descriptive Report, Basic Hydrographic Survey H10993, Approaches to Boston Harbor, Massachusetts Bay, Massachusetts Series_Information: Series_Name: Descriptive Report (DR) Issue_Identification: H10993 Publication_Information: Publication_Place: National Geophysical Data Center, Boulder, CO Publisher: National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC) Online_Linkage: http://surveys.ngdc.noaa.gov/mgg/NOS/coast/H10001-H12000/H10993/DR/H10993.pdf Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: All attributes were checked in a consistent manner. Logical_Consistency_Report: Any spurious data points were removed during processing. Duplicate names may exist for the FILENAME field; however further querying the data by SURVEYID will distinguish a unique trackline for each record in this spatial dataset. Completeness_Report: Only the subsets of interferometric bathymetric sonar collected during field activities 06012 and 07001 that are within the study area between Duxbury and Hull have been included in this spatial dataset. Approximately 945 km of additional bathymetric sonar data collected South of Brant Rock, Massachusetts during these field activities will be published in a subsequent data release focused on Cape Cod Bay. Additionally, only a portion of the multibeam bathymetric sonar trackline data acquired during NOAA hydrographic survey H10993 is included in this shapefile. To review additional data collected during this survey, please refer to the descriptive report for the survey which can be accessed online by visiting http://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html and entering "H10993" into the "Survey" section of the "Text search of NOS data & products" dialog. This shapefile includes trackline navigation from all the swath sonar data that was collected within the survey area; however only quality bathymetric soundings along the main survey lines were included in the final bathymetry grid included on this report (DH_bathy5m). Bathymetric data along the tielines, line l67f2 and sections of other main survey lines (mostly during leg 1 of survey 06012, see below for more information) were not included in the final bathymetric grid. The GPS navigation and bathymetric attitude data were significantly hindered during the first leg of survey 06012 (lines l1f1 - l99f2, 4-14 Aug 2006). Navigation dropouts halted surveying and problems with the ADU2 compass resulted in un-usable bathymetric data along survey tracklines that have valid navigation data. Therefore, tracklines of good navigation occur in areas where there are gaps in the bathymetry coverage as illustrated in the dataset DH_bathyhlshd_wgaps.tif, included in this report. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Hydrographic survey H10993: Horizontal sounding positional control for the NOAA H10993 survey was determined using the Global Positioning System (GPS) corrected by U.S. Coast Guard Differential GPS (DGPS) beacon stations. The primary and only DGPS beacon used for survey H10993 was Portsmouth Harbor, NH (Beacon No. 771). No horizontal control stations were established for the NOAA survey. Additional information may be found in the NOAA Descriptive Report for survey H10993, the Data Acquisition and Processing Report, and the Horizontal and Vertical Control Report. Field activity 06012: The SWATHPlus transducers were mounted on a rigid pole, approximately 2.6 m below the water line, along the starboard side of the R/V Megan T. Miller. Position data were provided by the Z-Surveyor Extreme for real-time kinematic (RTK) navigation (the Ashtech BR2G DGPS was used as a backup navigation system) and recorded to the raw data files (SXR) via SWATHPlus (version 2.07) on the acquisition computer. During some portions of the survey, technical difficulties caused the GPS systems to malfunction; in some instances the acquisition systems fell back on the RTK Float or the autonomous GPS navigation; but in some cases surveying was halted until a reliable GPS signal could be achieved. A conservative estimate of positional accuracy is estimated to be ± 10 m although when the system was recording RTK navigation the positional accuracy is likely <1 m as RTK-GPS provides horizontal positional accuracies on the decimeter scale (http://www.noaa.gov; http://www.nos.noaa.gov; http://www.ngs.noaa.gov). Field activity 07001: The SWATHPlus transducers were mounted on a rigid pole, approximately 0.5 m below the water line, from the bow of the of the R/V Rafael of Woods Hole, MA. Position data were provided by the Ashtech Extreme for RTK navigation (the Ashtech BR2G DGPS was used as a backup navigation system) and recorded to the raw data files (SXR) via SWATHPlus (version 3.X) on the acquisition computer. A conservative estimate of positional accuracy is estimated to be ± 10 m although when the system was recording RTK navigation the positional accuracy is likely <1 m as RTK-GPS provides horizontal positional accuracies on the decimeter scale (http://www.noaa.gov; http://www.nos.noaa.gov; http://www.ngs.noaa.gov). Lineage: Source_Information: Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20030820; 20060804; 20070422 Ending_Date: 20031003; 20060820; 20070502 Source_Currentness_Reference: ground condition Source_Contribution: Bathymetric sonar data acquisition H10993: Bathymetric sonar data were collected from launches 1005 and 1014 of the NOAA Ship Thomas Jefferson, S-222. Launch 1005 used a RESON SeaBat 8101 multibeam sonar system and Launch 1014 used a RESON SeaBat 8125 multibeam sonar system. Positioning and attitude information on both launches were determined using Applanix TSS POS/MV 320 (version 2) GPS aided inertial navigation systems. On Launch 1014, an Odom Hydrographic Digibar Pro sound velocimeter was used to continually measure changes in sound-velocity near the sea surface. Sonar data were collected along east-west oriented survey lines spaced between approximately 15 and 50 meters apart, providing 100 percent coverage of the seafloor. Data collected along several north-south oriented survey lines were used for survey line junction analyses subsequent to the application of tide corrections. To review more detailed information concerning data acquisition equipment, configuration, and settings on launches 1005 and 1014, please refer to the descriptive report for the survey H10993, which can be accessed online by visiting http://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html and entering "H10993" into the "Survey" section of the "Text search of NOS data and products" dialog. Bathymetric sonar data acquisition 06012: Bathymetric sonar data were collected using a Systems Engineering and Assessment (SEA), Ltd. SWATHPlus-M (234 kHz) interferometric sonar system. The SWATHPlus transducers were mounted on a rigid pole, approximately 2.6 m below the water line, along the starboard side of the R/V Megan T. Miller of Port Jefferson, NY. An International Industries, Inc. TSS DMS 2-05 inertial-motion unit, mounted directly above the SWATHPlus transducers, measured vertical displacement (heave) and attitude (pitch and roll) of the vessel during data acquisition. Heading was determined using an Ashtech ADU2 for lines l1f1-l99f1, and a KVH compass (with processor calculated declination +15.583 to be applied during post-processing) for lines l99f2-end of survey. An Applied Microsystems Ltd. Micro SV sound velocimeter, mounted adjacent to the SWATHPlus transducers, continually measured changes in sound-velocity near the sea surface, and a hand-casted, Applied MicroSystems SV Plus sound velocimeter was used to collect sound-velocity profiles of the entire water column approximately every two hours. SWATHPlus acquisition software was used to control the transducers and digitally log sonar data across a 200 m swath in the SWATHPlus .SXR format. To obtain 100 percent coverage of the seafloor, sonar data were collected along northwest-southeast and north-south oriented survey lines that were spaced approximately 100 or 200 meters apart. Data collected along several northeast-southwest and east-west oriented survey lines were used for survey line junction analyses subsequent to the application of tide corrections. The R/V Megan T. Miller maintained an average speed of 5 knots during survey operations. Bathymetric sonar data acquisition 07001: Bathymetric sonar data were collected using a Systems Engineering and Assessment, Ltd. SWATHPlus-M (234 kHz) interferometric sonar system. The SWATHPlus transducers were mounted on a rigid pole, approximately 0.5 m below the water line, from the bow of the of the R/V Rafael of Woods Hole, MA. A CodaOctopus F-180 inertial-motion unit, mounted directly above the SWATHPlus transducers, measured vertical displacement (heave) and attitude (pitch and roll) of the vessel during data acquisition. An Applied Microsystems Ltd. Micro SV sound velocimeter, mounted adjacent to the SWATHPlus transducers, continually measured changes in sound-velocity near the sea surface, and a hand-casted, Applied MicroSystems SV Plus sound velocimeter was used to collect sound-velocity profiles of the entire water column approximately every two hours. SWATHPlus acquisition software was used to control the transducers and digitally log sonar data across a 150 m swath in the SWATHPlus .SXR format. To obtain 100 percent coverage of the seafloor, sonar data were collected along northwest-southeast and north-south oriented survey lines that were spaced approximately 100 m apart. Data collected along several northeast-southwest and east-west oriented survey lines were used for survey line junction analyses subsequent to the application of tide corrections. The R/V Rafael maintained an average speed of 5 knots during survey operations. Process_Step: Process_Description: For Field Activity 06012 and 07001: Raw to Processed Conversion: Survey navigation information is stored within each raw (sxr) data file. Each raw SWATHPlus bathymetric sonar file (sxr) was converted to a SWATHPlus processed file (sxp) using SEA SWATHPlus Swath Processor (ver. 3.05.19.0). Process_Date: 2008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: For Field Activity 06012 and 07001: CARIS Processing: A new Computer Aided Resource Information System (CARIS) Hydrographic Information Processing System (HIPS) project (ver. 6.1) was created with projection information set to Universal Transverse Mercator (UTM) Zone 19, WGS84. Each SWATHPlus processed file (sxp) was imported to the new CARIS project using the Import/Conversion Wizard. Navigation was checked and edited as needed using the Navigation Editor tool. For NOAA survey H10993: NOAA's CARIS directory was provided to the USGS. No additional swath processing or navigation editing was performed to the NOAA data in CARIS. Process_Date: 2008 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: A series of Perl and AWK programming scripts were used to extract and subsample the navigation fixes stored in the CARIS HIPS database. The processing flow for this step follows: A. Extract navigation for each line in CARIS HDCS directory using Perl script do_CARIS_nav2.pl (which runs the CARIS program printfnav for all the lines in the HDCS dir) and the grep statement below. (Extracted navigation file is tab-delimited in format YYYY-JD HH:MM:SS:FFF DD.LAT DD.LONG SSSSS_VVVVV_YYYY-JD_LLLL AR where YYYY=year, JD=Julian Day, HH=hour, MM=minute, SS=seconds, FFF=fractions of a second, DD.LAT=latitude in decimal degrees, DD.LONG=longitude in decimal degrees, SSSSS=survey name, VVVVV=vessel name, LLLL=linename, AR=accepted or rejected navigation fix) > grep Accepted combined.txt > outputfile This step was done separately for the USGS surveys and the NOAA survey (06012, 07001 and H10993), creating the files 1.usgs_combined_grep.txt and 1.noaa_combined_grep.txt. Lines in the NOAA survey that fell outside the Duxbury to Hull survey area were removed from the navigation file. B. The two navigation files were concatenated together. > cat 1*.txt > 2.ss_combined_grep.txt C. The files extracted from CARIS HIPS have 4-5 navigation fixes per second. Each file was subsampled to 1 fix per second by using AWK (see code below) to remove the fractions-of-a-second from the time column then grabbing the first occurrence of each second. > awk '{print $1" "substr($2,1,8)" "$3" "$4" "$5}' 2.ss_combined_grep.txt | awk '$2 != prev { print; prev = $2 }' > 3.ss_nav_awked.txt D. Checked that there were no additional spurious fixes outside the survey area using another series of AWK code (see code below), and reformatted for conversion from comma separated value (CSV) data to ESRI point feature class > awk -F" " '{if(substr($4,1,3)!="-70") print $0}' 3.ss_nav_awked.txt > awk -F" " '{if(substr($3,1,1)!="4") print $0}' 3.ss_nav_awked.txt > awk -f reformat_CARIS2Arc_SS.awk 3.ss_nav_awked.txt > SS_bathyNAV_ofr.csv Process_Date: 200909 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: In ArcCatalog (version 9.3), navigation text (SS_bathyNAV_ofr.csv) was converted to a point feature class by right-clicking on the comma separated value text file -- Create Feature Class -- from XY table using the defined projection Geographic (Decimal_Degrees_WGS84.prj). {output file: XYSS_bathyNAV_ofr.shp] Process_Date: 200910 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: VAC Extras tool (version: 2.04 FeatConv - Points to Line v2; USGS in-house software) was then used within ArcMap (version 9.3) to convert the navigation points (XYSS_bathyNAV_ofr.shp) to a temporary trackline shapefile (SS_bathyNAV_ofr_trk.shp). The trackline shapefile was checked to ensure no spurious fixes. XTools Pro (version 5.3.0) for ArcGIS desktop was used to reorganize and add fields to the polyline shapefile's attribute table. Fields for device used to collect the data ('DEVICEID'), survey vessel name ('VEHICLEID'), and year ('YEAR') were added and populated using the table editor in ArcMap (version 9.3). Table attributes for the survey ID ("SURVEYID') and Julian day ('JULDAY') of data collection, were already populated but edited to be consistent with the other trackline shapefile in this report. The length field ('LENGTH') was populated using 'Calculate Geometry' (Property=Length; Use coordinate system of the data frame=WGS 1984 UTM Zone 19N; Unit=Kilometers), which can be accessed by right-clicking on the attribute field name in the table view. (output file: DH_BathyTrackline.shp) Process_Date: 200910 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@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: String Point_and_Vector_Object_Count: 989 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: DH_BathyTrackline Entity_Type_Definition: Trackline for swath bathymetric systems Entity_Type_Definition_Source: USGS 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: FILENAME Attribute_Definition: Name of bathymetric sonar data file Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string of width 10 Attribute: Attribute_Label: YEAR Attribute_Definition: Calendar year data were collected Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string of width 5 Attribute: Attribute_Label: JULDAY Attribute_Definition: Julian day data were collected Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string of width 4 Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of bathymetric sonar transect in kilometers (UTM Zone 19N, WGS84) Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.036414 Range_Domain_Maximum: 14.381701 Attribute: Attribute_Label: SURVEYID Attribute_Definition: WHSC field activity number or NOAA hydrographic survey number Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string of width 10 Attribute: Attribute_Label: DEVICEID Attribute_Definition: Sonar device used to collect bathymetric data Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string of width 25 Attribute: Attribute_Label: VEHICLEID Attribute_Definition: Survey vessel name Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string of width 25 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@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: SHP Format_Version_Number: ArcGIS 9.3 Format_Specification: ESRI polyline shapefile Format_Information_Content: Trackline navigation for interferometric and multibeam bathymetric sonar collected offshore of Massachusetts between Duxbury and Hull File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 8 Mb Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2009/1072/GIS/shapefile/DH_BathyTrackline.zip Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Offline_Option: Offline_Media: DVD-ROM Recording_Capacity: Recording_Density: 4.75 Recording_Density_Units: Gbytes Recording_Format: UDF 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: 20090819 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Seth Ackerman 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sackerman@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