Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2013 Title: 5 meter ArcRaster grid of bathymetry data collected in Buzzards Bay by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration offshore of Massachusetts in 2004, 2009, 2010, and 2011 (BB_bathy5m, UTM Zone 19N, Esri BINARY GRID) Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1002 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ofr20121002 Online_Linkage: http://pubs.usgs.gov/of/2012/1002/GIS/raster/bathy/BB_bathy5m.zip Online_Linkage: http://pubs.usgs.gov/of/2012/1002/html/appendix1.html Larger_Work_Citation: Citation_Information: Originator: Seth D. Ackerman Originator: Brian D. Andrews Originator: David S. Foster Originator: Wayne E. Baldwin Originator: William C. Schwab Publication_Date: 2013 Title: High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts. Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1002 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2012/1002/ Description: Abstract: These data were collected under a cooperative agreement between the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, Woods Hole Coastal and Marine 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 seafloor 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 of coastal Massachusetts, primarily in water depths of 5 to 30 meters (m) deep. 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/). The data collected in the study area in Buzzards Bay, Massachusetts, include high-resolution geophysics (bathymetry, backscatter intensity, and seismic reflection) and ground validation (sediment samples, video tracklines, and bottom photographs). The geophysical data are released in USGS Open-File Report 2012-1002, High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts (http://pubs.usgs.gov/of/2012/1002/). The sampling data have not been prepared for publication yet. The geophysical data were collected during four separate surveys conducted between 2004 and 2011 (National Oceanic and Atmospheric Administration (NOAA) survey H11319 (in 2004; bathymetry only) and USGS surveys 2009-002-FA, 2010-004-FA, and 2011-004-FA)) and cover 410 square kilometers of the inner continental shelf. More information about the individual USGS surveys conducted as part of the Buzzards Bay project can be found on WHCS Field Activity Web pages: 2009-002-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2009-002-FA 2010-004-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2010-004-FA 2011-004-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2011-004-FA Information about the NOAA survey can be found at: H11319: http://surveys.ngdc.noaa.gov/mgg/NOS/coast/H10001-H12000/H11319/DR/ Purpose: This grid represents approximately 410 square kilometers of bathymetric data that were collected in 2004, 2009, 2010, and 2011. This is a merged grid of interferometric (Systems Engineering and Assessment Ltd. SWATHPlus-M) and multibeam (RESON SeaBat 8125) bathymetric sonar data that were collected by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration, respectively, during four surveys (USGS surveys 2009-002-FA, 2010-004-FA and 2011-004-FA; and NOAA survey H11319 in 2004) offshore of Massachusetts, in Buzzards Bay. These data are used to define the seafloor morphology as part of the Massachusetts Seafloor Mapping Project. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040330 Ending_Date: 20110513 Currentness_Reference: ground condition of individual surveys on the following dates: 20040330-20040412; 20090528-20090618; 20100515-20100520; 20110513 Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.130776 East_Bounding_Coordinate: -70.646807 North_Bounding_Coordinate: 41.673085 South_Bounding_Coordinate: 41.362978 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:15acfba4-ca05-4d34-94c7-606d66482500 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHSC Theme_Keyword: Seafloor Theme_Keyword: Marine Geology Theme_Keyword: NOAA hydrographic survey registry number H11319 Theme_Keyword: field activity 2009-002-FA Theme_Keyword: field activity 2010-004-FA Theme_Keyword: field activity 2011-004-FA Theme_Keyword: field activity number 09002 Theme_Keyword: field activity number 10004 Theme_Keyword: field activity number 11004 Theme_Keyword: USGS CMG InfoBank ID M-2-09-BZ Theme_Keyword: USGS CMG InfoBank ID U-4-10-BZ Theme_Keyword: USGS CMG InfoBank ID B-15-11-BZ Theme_Keyword: bathymetry Theme_Keyword: swath bathymetry Theme_Keyword: interferometry Theme_Keyword: multibeam bathymetry Theme_Keyword: SEA SWATHPlus Theme_Keyword: SEA Submetrix Theme_Keyword: RESON 8125 Theme_Keyword: M/V Megan T. Miller Theme_Keyword: M/V Scarlett Isabella Theme_Keyword: NOAA Ship RUDE Theme_Keyword: ArcRaster grid Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: elevation Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: bathymetry Theme_Keyword: sea-floor characteristics Theme_Keyword: interferometric sonar Theme_Keyword: multibeam sonar Theme_Keyword: marine geophysics Theme_Keyword: geospatial datasets Place: Place_Keyword_Thesaurus: None Place_Keyword: North America Place_Keyword: United States Place_Keyword: Atlantic Ocean Place_Keyword: Massachusetts Place_Keyword: Buzzards Bay Place_Keyword: New Bedford Place_Keyword: Woods Hole Place_Keyword: Cape Cod Place_Keyword: West Falmouth Place_Keyword: Cleveland Ledge Place_Keyword: Elizabeth Islands Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Seafloor Stratum_Keyword: Surface Stratum_Keyword: sea floor Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2004 Temporal_Keyword: 2009 Temporal_Keyword: 2010 Temporal_Keyword: 2011 Access_Constraints: None Use_Constraints: These data are NOT to be used for navigation. Mariners should refer to the appropriate nautical chart. 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: 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/2012/1002/GIS/browse_jpg/big/BB_bathy5m.jpg Browse_Graphic_File_Description: Depth-colored image of bathymetry Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 Cross_Reference: Citation_Information: Originator: National Oceanic and Atmospheric Administration Publication_Date: 2004 Title: National Oceanic and Atmospheric Administration Data Acquisition and Processing Report to Accompany 2004 Hydrographic Surveys, NOAA Ship RUDE (s590) Series_Information: Series_Name: Data Acquisition and Process Report (DAPR) Issue_Identification: NOAA Ship RUDE (2004) 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/NOAAShipRUDE2004.pdf Cross_Reference: Citation_Information: Originator: NOAA (National Oceanic and Atmospheric Administration) Publication_Date: 2004 Title: H11319_BuzzBay [Descriptive Report, Basic Hydrographic Survey H11319, Buzzards Bay, Massachusetts Series_Information: Series_Name: Descriptive Report (DR) Issue_Identification: H11319 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/H11319/DR/H11319.pdf Data_Quality_Information: Logical_Consistency_Report: This grid represents interpolated data; processed to account for gaps that occurred along-track and between adjacent lines. Completeness_Report: Nearly all quality main survey line bathymetric data (generally shore parallel for the USGS surveys) that were collected within the Buzzards Bay survey area were incorporated in this grid. Approximately 340 square-km of additional bathymetric data collected within Vineyard Sound, Massachusetts during these field activities were published in USGS Open-File Report 2012-1006 High-Resolution Geophysical Data from the Inner Continental Shelf: Vineyard Sound, Massachusetts (http://pubs.usgs.gov/of/2012/1006/). Soundings from the USGS surveys were processed and edited using Computer Aided Resource Information System (CARIS) Hydrographic Information Processing System (HIPS; ver. 6.1 and 7.1). Although the soundings were manually edited, small data spikes may exist at outer edges of some swaths. In addition, small gaps between adjacent survey lines may exist, especially in depth less than 14 meters. Tielines and transit lines were generally excluded from this grid if quality main survey line data were available. The tieline and transit line data were used to verify tide corrections during post-processing. NOAA's CARIS directory for survey H11319 was provided to the USGS. No additional swath processing or navigation editing was performed to the NOAA data in CARIS. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Hydrographic survey H11319: Horizontal sounding positional control for the NOAA H11319 survey was determined using the Global Positioning System (GPS) corrected by U.S. Coast Guard Differential GPS (DGPS) beacon stations. The primary DGPS beacon used for survey H11319 was at Acushnet, MA and the secondary beacon was at Portsmouth, NH. No horizontal control stations were established for the NOAA survey. Additional information may be found in the NOAA Descriptive Report for survey H11319 and the Data Acquisition and Processing Report. Field activities 2009-002-FA and 2010-004-FA: Navigation was acquired with a Coda Octopus F180 Differential Global Positioning System + Wide Area Augmentation System (DGPS+WAAS), which is accurate to + or - 1 to 2 meters, horizontally. All DGPS data are referenced to WGS84. The SWATHPlus transducers were mounted on a rigid pole, approximately 2.46 m below the water line, along the starboard side of the M/V Megan T. Miller. The DGPS antenna was located on the same pole approximately 4.3m above the sea surface. These offsets were corrected within the SWATHPlus acquisition software. Field activity 2011-004-FA: Navigation was acquired with a Coda Octopus F180 Differential Global Positioning System + Wide Area Augmentation System (DGPS+WAAS), which is accurate to + or - 1 to 2 meters, horizontally. All DGPS data are referenced to WGS84. The SWATHPlus transducers were mounted on a rigid pole, approximately 2.17 m below the water line, along the port side of the M/V Scarlett Isabella. The DGPS antenna was located on the same pole approximately 4.6m above the sea surface. These offsets were corrected within the SWATHPlus acquisition software. The DGPS horizontal positional accuracy is estimated to be within 3-5 m; WAAS enabled DGPS accuracy is estimated to be within less than 3 m and the accuracy of RTK-GPS (which was not applied to the horizontal positions for these surveys) is estimated to be less than 1 m. However, the U.S. Coast Guard maintains a maritime DGPS service providing 10 meter accuracy for the coastal areas of the continental US; therefore, a very conservative, worse-case estimate of the horizontal positional accuracy of this survey data is approximately 10 meters (although these systems have been shown to be reliable to less than 2m). (sources: http://www.noaa.gov; http://www.nos.noaa.gov; http://www.ngs.noaa.gov; http://www.nstb.tc.faa.gov/; http://www.navcen.uscg.gov). Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: NOAA Hydrographic survey H11319: NOAA's National Ocean Service Hydrographic Surveys Specifications and Deliverables closely follow the International Hydrographic Organizations Standards for Hydrographic Surveys, Reference tests conducted in the summer 2004 showed that the NOAA Ship RUDE's sonar system exceeded the International Hydrographic Organization's "Special Order" specification. Position and attitude on the NOAA Ship Rude was measured using TSS POS/MV 320 and a Trimble DSM-212L DGPS receiver. A SeaBird SBE 19 SEACAT conductivity, temperature and depth (CTD) profiler was used to measure sound-velocity data. The tidal datum for survey H11319 is Mean Lower Low Water (MLLW). Tidal corrections were calculated using verified data from tidal station #8452660 at Newport, RI, and final corrected soundings (from a zoned tidal model) were referenced to MLLW (NOAA DAPR, 2004; NOAA DR, 2004). Refer to the NOAAShipRUDE2004 Data Acquisition and Processing Report (DAPR) and the Horizontal and Vertical Control Report in the Descriptive Report, for detailed equipment, vessel configuration and setting information. USGS field activities 2009-002-FA, 2010-004-FA and 2011-004-FA: Vertical accuracy of the raw data based on system specifications may approximate 1% of water depth, 0.1 to 0.4 meters within the survey area. However, overall vertical accuracies on the order of 50cm or better are assumed based on the following considerations: The Coda Octopus F180 Attitude and Positioning system, used to correct for vessel roll, pitch, heave, and yaw, has a theoretical vertical accuracy of a few mm. Tidal offsets were corrected to MLLW using Real-Time Kinematic GPS (RTK-GPS) heights in post-processing (see process steps). Corrections were sent via cellular modem and VHF radio to the ship from the base station on land. The primary reference station is located at the USGS Marine Operations Facility (MOF) in Falmouth, MA. USGS field tests (unpublished) using submerged targets suggest that the vertical accuracy of the RTK-GPS tidal correction is less than 30cm. Refraction artifacts were minimized by acquiring a range of sound velocity profiles with a hand-casted Applied MicroSystems SV Plus sound velocimeter during survey 2009-002-FA and an ODIM MVP30 moving vessel profiler during surveys 2010-004-FA and 2011-004-FA. Sound velocity data are entered into the SWATHPlus acquisition software to model the sound velocity structure of the water column. Gridding algorithms and cell sizes for these data could introduce errors as great as 3m along the edges of the data, but gridding-induced errors are likely much smaller (less than 20cm) for most of the survey area. Changes in ship draft due to water and fuel usage were not considered. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unpublished Material Title: raw bathymetry data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20090528 Ending_Date: 20110513 Source_Currentness_Reference: ground condition of individual surveys on the following dates: 20090528-20090618; 20100515-20100520; 20110513 Source_Citation_Abbreviation: none Source_Contribution: This bathymetric dataset is a combination of data collected by the USGS (with a 234 kHz Systems Engineering and Assessment Ltd. (SEA) SWATHplus interferometric sonar mounted on the M/V Megan T. Miller (2009 and 2010) and the M/V Scarlett Isabella (2011)). Data were acquired between May 2009 and May 2011. USGS Configuration: Survey: Survey lines were run at an average speed of 5 knots and were spaced 50-100 m apart to obtain overlapping swaths of data and full seafloor coverage. Sonar: The SEA SWATHplus-M operates at a frequency of 234 kHz and a variable range (increased or decreased manually depending on water depth). The system was operated with a transmit power: 80 percent, a transmit length: 12 cycles (2009-002-FA and 2010-004-FA) or 43 cycles (2011-004-FA), 3072 samples per channel (2009-002-FA) or 4096 samples per channel (2010-004-FA and 2011-004-FA), and a variable range (increased or decreased depending on water depth). Speed of Sound: Sound-velocity profiles were collected approximately every 2 hours by hand casted Applied MicroSystems SV Plus sound velocimeter (2009-002-FA), or an ODIM MVP30 moving vessel profiler (2010-004-FA and 2011-004-FA). Tides: Tides were typically corrected during post-processing using one- or two-minute interval averages of the RTK tide data recorded in the "TID" message string of the HYPACK navigation file for each line (however; RTK signal dropouts during survey 2009-002-FA and 2010-004-FA made it necessary to post-process the base and rover navigation data using NovAtel GrafNav (version: 8.30.1123) to calculate the RTK tide offset values, see process steps for more details). While much effort was devoted to cleaning the data and minimizing survey artifacts, some artifacts may still be seen in the final gridded data including an along track artifact at nadir (the ship track) and at the far edges of a survey line where adjacent swaths overlap. These artifacts are especially noticeable in areas of little local relief. Source_Information: Source_Citation: Citation_Information: Originator: National Oceanic and Atmospheric Administration, National Ocean Service Publication_Date: Unpublished Material Title: CARIS HIPS database of bathymetry data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040330 Ending_Date: 20040412 Source_Currentness_Reference: ground condition of individual survey on the following dates: 20040330-20040412 Source_Citation_Abbreviation: none Source_Contribution: This bathymetric dataset is data collected by the NOAA (with a 455 kHz multibeam-echosounder mounted on the NOAA Ship RUDE(2004)). Data were acquired in March and April 2004. NOAA Configuration: Survey: All data were collected by the NOAA Ship RUDE. Trackline spacing for survey H11319 was based on a estimate of 2.5 times the water depth to achieve overlapping swaths for full seafloor coverage. For this area survey lines were typically between 25-50m apart. Ship speed was determined such that the survey achieved a sampling rate of 3.2 pings per 3 meters of along track distance. Sonar: The RESON SeaBat 8125 is a 0.5 degree (across-track) by 1 degree (along-track) beam angle system which operates at a frequency of 455 kHz and collects 240 individual soundings in a swath oriented perpendicular to the vessel track. The system is capable of ping rates ranging from 3.02 Hz to 40.05 Hz but for this survey, the maximum ping rate was set to 20 Hz. Speed of Sound: SeaBird SBE 19 SEACAT conductivity, temperature and depth (CTD) profiler was used to measure sound-velocity data. Tides: The tidal datum for survey H11319 is Mean Lower Low Water (MLLW). Tidal corrections were calculated using verified data from tidal station #8452660 at Newport, RI, and final corrected soundings (from a zoned tidal model) were referenced to MLLW. Other: All bathymetry processing, including tide-correction, were done by NOAA Hydrographers. NOAA's Computer Aided Resource Information System (CARIS) directory was provided to the USGS. Refer to the Fall Data Acquisition and Processing Report (DAPR) and the Horizontal and Vertical Control Report, for detailed equipment, vessel configuration and setting information. Only the data necessary to fill gaps in the 2009-2011 USGS bathymetry survey data were used. Although the CARIS database contains the "raw" bathymetry soundings, it also contains any of the soundings and navigation edits, refraction and tide corrections, and motion reference unit offsets that were done by NOAA hydrographers. All NOAA-provided edits, corrections, and offsets were used in the final bathymetry grid for Buzzards Bay. No additional editing was done to the NOAA-provided data. Process_Step: Process_Description: 1. Raw to Processed conversion for USGS field activity 2009-002-FA, 2010-004-FA and 2011-004-FA: Each raw SWATHPlus bathymetric sonar file (sxr) was converted to a SWATHPlus processed file (sxp) using SEA SWATHPlus Swath Processor (vers. 3.06 in 2009 and 2010 and ver. 3.07 in 2011). During the conversion process, sound velocity profiles were used to minimize potential refraction artifacts from fluctuations in the speed of sound within the water column. Several bathymetric filters were applied to remove erroneous soundings and reduce the density of the data. Predicted tidal information was merged into the processed file (sxp) during this conversion, however observed tidal corrections were applied later in the processing flow. Bathymetric filtering typically included low amplitude (100%), range (0-4m), box (3-50m depth, 1.5-75m horizontal), median (window size 5), alongtrack 1 (depth difference of 5-m, window size 5-m, and learn rate of 0.7), alongtrack 2 (depth difference of 1.5-m, window size 1m, and learn rate of 0.9), and mean filters (0.25m). These represent the typical parameters used for the majority of the USGS survey although the values may have been adjusted slightly for specific parts of the survey area. Processing occurred in 2009, 2010, and 2011. Process_Date: 2011 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: 2. CARIS processing for USGS field activity 2009-002-FA, 2010-004-FA and 2011-004-FA: A new CARIS HIPS project (vers. 6.1 and 7.1) was created for each field activity 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. A 5 meter resolution Bathymetric and Statistical Error (BASE) Surface was created from the files for each Julian day. The BASE surface for each day was reviewed for any inconsistencies or data anomalies. Navigation was reviewed and edited as needed using the navigation editor tool. Beam-to-beam slopes and across track angle filters were applied to the soundings line by line. The refraction editor was used to adjust sound speed values in areas where velocimeter data did not adequately correct depth profiles obviously influenced by local anomalies in speed of sound through the water column. CARIS processing for NOAA hydrographic survey H10993: The CARIS HIPS directory was received from the National Oceanic and Atmospheric Administration - National Geophysical Data Center (NOAA-NGDC). The multibeam bathymetric data from NOAA was delivered fully processed and tide-corrected by NOAA Hydrographers. The CARIS HIPS project was reviewed and checked for any inconsistencies. Survey lines that were not needed to create a complete gridded surface for the Buzzards Bay survey area were removed from the project. Processing occurred in 2009, 2010, and 2011. Process_Date: 2011 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: 3. Prepare and apply RTK Tide data for USGS field activities 2009-002-FA, 2010-004-FA and 2011-004-FA: Tides files were created during post-processing using one- or two-minute interval averages of the RTK tide data recorded in the "TID" message string of the HYPACK navigation file for each line. The TID messages from DEV 1 (which was the Ashtech Z-Extreme during survey 2009-002-FA and the NovAtel DL-V3 receiver during surveys 2010-004-FA and 2011-004-FA) were used to extract the tide offset values. This was done using a shell script called getNovatelTides and an AWK script called parseHypackNovatelTides.awk However; RTK signal dropouts during parts of surveys 2009-002-FA and 2010-004-FA made it necessary to post-process the base station and rover navigation data using NovAtel GrafNav (version: 8.30.1123). This process calculates the RTK tide offset values, using the height data recorded separately by the Master/Base station (which was set up at the USGS Marine Operations Facility) and the Remote/Rover station (the GPS antennea on the survey vessel). RTK tide data processed with GrafNav were then formatted for input into CARIS using a Perl script parse_GrafNav_files.pl. The tide (.tid) files for each survey were finalized by using data from either the GrafNav processed or the HYPACK extracted tide data. In Buzzards Bay: RTK tidal corrections for Survey 2009-002-FA were post-processed from base-station and rover data using GrafNav, except for discrete periods of JD152 (1200-2359), JD158 (0000-1516 and 2353-2359), JD159 (0000-2400), and JD160 (0000-0145) where HYPACK extracted tides were used. Only HYPACK extracted tide data were used for Survey 2010-004-FA. Only HYPACK extracted tide data were used for Survey 2011-004-FA. RTK tide corrections were loaded and applied to the soundings line by line in CARIS. Each line was re-merged and the preliminary BASE surfaces were recomputed to incorporate the new tide information. Additional swath editing was done in CARIS using the swath and area based editors to remove any additional inconsistencies and minimize survey artifacts. Processing occurred in 2009, 2010, and 2011. Process_Date: 2011 Source_Produced_Citation_Abbreviation: 09002_TID_master.tid; 10004_RTK_Tides_BBay.tid; 11004_TID_master.tid 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: 4. Final BASE surface creation: A new CARIS HIPS project was made to create final BASE surfaces for all of the bathymetric data from the NOAA and USGS surveys. A 5-meter BASE surface was created for the entire area of the Buzzards Bay survey area utilizing all the quality bathymetric soundings data from USGS surveys 2009-002-FA, 2010-004-FA and 2011-004-FA. Survey lines from NOAA hydrographic survey H10993 were added to the project and then added to the Buzzards Bay Base Surface. Processing occurred in 2011 and 2012. Process_Date: 2012 Source_Produced_Citation_Abbreviation: CARIS HIPS BASE (BB_All) 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: 5. The CARIS HIPS BASE surface was exported from CARIS as a Bathymetry Attributed Grid (BAG) file and then imported into IVS 3D Fledermaus (version 7.3); [Import -> Import Gridded Data - BAG/Open Nav Surface]. This creates a Fledermaus SD file. Then in IVS 3D DMagic, SD file was exported to ARC/INFO ASCII GRID format (outputfile: BB_All.asc). Process_Date: 2012 Source_Produced_Citation_Abbreviation: IVS 3D SD file (BB_All.sd) Source_Produced_Citation_Abbreviation: ARC/INFO ASCII GRID (BB_All.asc) 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: 6. Using Esri ArcToolbox (version 9.3), converted ARC/INFO ASCII GRID to an Esri ArcRaster Grid [Conversion Tools, To Raster, ASCIIToRaster] creating final bathymetry grid "BB_bathy5m". Process_Date: 2012 Source_Produced_Citation_Abbreviation: Esri ArcRaster Grid (BB_bathy5m) 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: Edits to the metadata were made to fix any errors that MP v 2.9.32 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Process_Date: 20151208 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd City: Woods Hole State_or_Province: MA Postal_Code: 02543 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: USGS Thesaurus keywords added to the keyword section. Process_Date: 20180720 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: Crossref DOI link was added as the first link in the metadata. Process_Date: 20191118 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200908 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 6716 Column_Count: 7934 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 19 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -69.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 5.000000 Ordinate_Resolution: 5.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Mean lower low water Depth_Resolution: 0.1 Depth_Distance_Units: meters Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Value Entity_Type_Definition: Depth in meters below mean lower low water Entity_Type_Definition_Source: Esri Overview_Description: Entity_and_Attribute_Overview: Swath bathymetry in Esri ArcRaster format. Data values represent depth in meters referenced to mean lower low water (MLLW). Entity_and_Attribute_Detail_Citation: Esri 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: AIG Format_Version_Number: ArcGIS 9.3 Format_Specification: Esri Raster GRID format Format_Information_Content: Zip (WinZip v. 14.0) file containing the ArcRaster grid of swath bathymetric data from the Buzzards Bay survey area. This also includes associated metadata. File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip Transfer_Size: 28 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1002/GIS/raster/bathy/BB_bathy5m.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: GB Recording_Format: UDF Compatibility_Information: None Fees: None Technical_Prerequisites: These data are available as a ArcInfo 32-bit floating point binary grid in Esri format. The grid consists of two folders, one with the "grid name", and one "info" folder. The two folders for each grid are compressed into one file using WinZip (ver. 14.0) software. To utilize these data, the user must have software capable of uncompressing the zip file and importing and viewing an Esri ArcRaster grid. The two folders for each grid must be uncompressed to the same folder. Extracting grids from different publications into the same folder is not recommended and will likely render some of your grids unusable. The zip file also contains associated metadata. Metadata_Reference_Information: Metadata_Date: 20240318 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: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318) Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time