Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2014 Title: Raw HYPACK navigation logs (text) collected by the U.S. Geological Survey from Muskeget Channel, MA, 2010 (2010-072-FA_hypack) Edition: 1.0 Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1258 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ofr20121258 Online_Linkage: https://pubs.usgs.gov/of/2012/1258/GIS_catalog/hypack/2010-072-FA_hypack.zip Larger_Work_Citation: Citation_Information: Originator: Elizabeth A. Pendleton Originator: Jane F. Denny Originator: William W. Danforth Originator: Wayne E. Baldwin Originator: Barry J. Irwin Publication_Date: 2014 Title: High-Resolution Swath Interferometric Data Collected within Muskeget Channel, Massachusetts Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1258 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20121258 Online_Linkage: https://pubs.usgs.gov/of/2012/1258/ Description: Abstract: These data were collected in a collaboration between the Woods Hole Oceanographic Institution and the U.S. Geological Survey (USGS). The primary objective of this program was to collect baseline bathymetry for Muskeget Channel, Massachusetts, and identify areas of morphologic change within and around the channel. Repeat surveys in select areas were collected one month apart to monitor change. These data were collected to support an assessment of the effect on sediment transport that a tidal instream energy conversion facility would have within Muskeget Channel. Accurate data and maps of sea-floor topography are important first steps in monitoring bedform migration, fish habitat, marine resources, and environmental changes due to natural or human impacts. The data include high-resolution bathymetry, acoustic-backscatter intensity, sound velocity in water, and navigation data. These data were collected during two surveys between October 2010 and November 2011 onboard the research vessel (RV) Rafael using an SEA Ltd. SwathPlus interferometric sonar (234 kilohertz). More information about the cruise can be found on the Woods Hole Coastal and Marine Science Center field activity Web page at https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-072-FA. Purpose: These raw navigation data are included as an archive documenting the survey area surrounding Muskeget Channel, Massachusetts and the instrumentation used to manage the ship's navigation. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20101012 Single_Date/Time: Calendar_Date: 20101013 Single_Date/Time: Calendar_Date: 20101014 Single_Date/Time: Calendar_Date: 20101019 Single_Date/Time: Calendar_Date: 20101116 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.498 East_Bounding_Coordinate: -70.400 North_Bounding_Coordinate: 41.417 South_Bounding_Coordinate: 41.293 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:4c48bce2-a784-4a0d-b657-8af927115a39 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Global Positioning System Theme_Keyword: Navigation Theme_Keyword: HYPACK Hydrographic Survey Software Theme_Keyword: WHCMSC field activity serial number 2010-072-FA Theme_Keyword: R/V Rafael Theme_Keyword: GPS Theme_Keyword: Differential GPS Theme_Keyword: CSI LGBX Pro Theme_Keyword: Garmin 5312 Theme_Keyword: Novatel DLV3 Theme_Keyword: CodaOctopus F180 DGPS Theme_Keyword: Ashtech Z-xtreme Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: location Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: navigational data Theme_Keyword: marine geophysics Place: Place_Keyword_Thesaurus: None Place_Keyword: North America Place_Keyword: Atlantic Ocean Place_Keyword: Massachusetts Place_Keyword: United States Place_Keyword: Muskeget Channel Place_Keyword: Vineyard Sound Place_Keyword: Martha's Vineyard Place_Keyword: Nantucket Sound Place_Keyword: Chappaquiddick Island Place_Keyword: Edgartown Place_Keyword: Mutton Shoal Place_Keyword: Muskeget Island Place_Keyword: Nantucket Island Place_Keyword: Tuckernuck Island Place_Keyword: Wasque Point Place_Keyword: Cape Poge Place_Keyword: Katama Bay Place_Keyword: Hawes Shoal Place_Keyword: Norton Shoal Place_Keyword: Bass Ledge Place_Keyword: Shovelful Shoal Place_Keyword: Wasque Shoal Access_Constraints: None Use_Constraints: Not to be used for navigation. 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: Elizabeth A. Pendleton 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: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Native_Data_Set_Environment: Microsoft Windows 7 Enterprise Service Pack 1; ArcGIS Desktop 9.3 Service Pack 1; Build 1850 Cross_Reference: Citation_Information: Originator: Poppe, L.J. Originator: McMullen, K.Y. Originator: Foster, D.S. Originator: Blackwood, D.S. Originator: Williams, S.J. Originator: Ackerman, S.D. Originator: Moser, M.S. Originator: Glomb, K.A. Publication_Date: 2010 Title: Geological Interpretation of the Sea Floor Offshore of Edgartown, Massachusetts Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1001 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2009/1001/ Cross_Reference: 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 Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2008/1288/ Data_Quality_Information: Logical_Consistency_Report: These are the original raw data files recorded by the HYPACK navigation software. No additional checks or corrections have been made to these files. Completeness_Report: These files represent four of the five global positioning systems used on the R/V Rafael during cruise 2010-072-FA. The GPS data recorded to HYPACK include the following receivers: a Novatel DLV3 (RTK), Communications Systems International (CSI), Inc. LGBX Pro (DGPS), an Ashtech Zxtreme (RTK), and a Garmin 5312 (echosounder for boat navigation). An additional antenna and receiver for the Coda Octopus F180 was used for navigation for the Swath interferometric and attitude data, and imported directly into SwathPlus without being logged in HYPACK. The Novatel DL-V3 (RTK) was used to acquire z-values for tidal corrections to the bathy. The Ashtech Z-extreme (RTK) was used for redundancy and recorded to HYPACK, but was not recorded for any instrument. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Positions of the ship (HYPACK line nav.) were determined using a Communications Systems International (CSI), Inc. LGBX Pro differential global positioning system (DGPS) antenna mounted above the cabin on the R/V Rafael. Swath bathymetry, continuous sound velocity at the sonar head, and attitude data were determined using a CodaOctopus F180 DGPS antenna mounted on a rigid, vertical pole aproximately 3-m above the swath transducers. A Novatel DL-V3 Real-Time Kinematic (RTK) and an Ashtech Z-xtreme antenna, mounted above the swath transducers, were used to acquire water-level heights for tidal corrections. A Garmin 5312 was used to drive the boat and monitor water depths. All DGPS data are assumed to be accurate to within + or - 1 to 2 meters. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical (RTK) heights were collected with a Novatel receiver and sn Ashtech Z-Extreme receiver, then recorded to HYPACK Survey software. RTK positions were used to post-process tidal corrections for bathymetry data (using the Novatel heights). RTK positional accuracy is sub-meter. EC1 depth values were collected with a Furuno FRS 1000 plotter/radar/sounder, which has an assumed vertical accuracy of 0.5 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: unknown Title: Information unavailable from original metadata Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20101012 Ending_Date: 20101116 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Source_Contribution: Raw navigation data were saved in HYPACK format. File name convention is LLL_TTTT.JJJ, where LLL is the HYPACK line number, TTTT is the 24 hour time for the beginning of the file, and JJJ is the Julian Day of data collection. Times were recorded in UTC (Coordinate Universal Time). Process_Step: Process_Description: Raw HYPACK (9.0.5.17) navigation files were transferred from the navigation acquisition computer to an external drive. The raw HYPACK navigation files are stored in directories indicating the acquisition Julian Day. For example, filename 004_0850.287 represents HYPACK line number 004, start time 0850, and Julian Day 287. Times are recorded in UTC (Coordinate Universal Time). Process_Date: 2010 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508)-548-8700 x2259 Contact_Facsimile_Telephone: (508)-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: Edits to the metadata were made to fix any errors that MP v 2.9.36 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.). Attempted to modify http to https where appropriate. Added the DOI link in the Identification section - both as the first link and as part of the Larger Work citation. The source information was incomplete and had to be modified to meet the standard. Fixed a link in the distribution section. Removed offline distribution. 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: 20171006 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: 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: 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_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Degrees, minutes, and decimal seconds 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: Overview_Description: Entity_and_Attribute_Overview: The times recorded in the navigation file are in UTC. Keyword definitions and the information listed below are comprehensive and not found in every file. The definitions are as follows: FTP: The first record located at the top of the header used to identify the file format. VER: HYPACK version number. INF: General survey information filled in by the data technician. This typically contains the survey participants, the vessel name, other agencies involved with the survey, and the location of the survey. The three numbers at the end refer to initial tide correction at start-of-line, initial draft correction at start-of-line and sound velocity from the navigation parameters. FIL: Raw format file. ELL: Ellipsoid information. The name of the ellipsoid followed by the semi-major axis in meters and the flattening ration. PRO: Project information record where TME indicates Transverse Mercator and the central meridian of -69 indicates UTM, zone 19. DTM: Datum transformation record GEO: Geoid model. Blank if not present. The number after the model indicates the orthometric height correction in meters. HVU: Horizontal and Vertical Units (meters). TND: Survey time and date in UTC. DEV 0: Indicates that the lines with device designation 0 are lines of DGPS data acquired with a Communications Systems International (CSI), Inc. LGBX Pro (single frequency) receiver. OFF 0: device offsets for device 0. Format of the value is OFF dn n1 n2 n3 n4 n5 n6 n7 where dn=device number; n1=starboard, port offsets where positive is starboard; n2=forward, aft offset where positive is forward; n3=height (antenna) or depth (transducer draft) offset - always positive; n4=yaw rotation angle where positive for clockwise rotation; n5=roll rotation angle where port side up is positive; n6=pitch rotation angle where bow up is positive; n7=device latency in seconds. No offset for device 0 during this data collection. DEV 1: Indicates that the lines with device designation 1 are lines of RTK data acquired with the Novatel DLV3 (dual frequency) receiver. OFF 1: device offsets, where antenna height is -2.48 meters. DEV 2: Indicates that the lines with device designation 2 are lines of DGPS data acquired with a Garmin 5312 (single frequency, echosounder) receiver. OFF 2: device offsets, where antenna height is 0.6 meters. DEV 3: Indicates that the lines with device designation 3 are lines of RTK data acquired with an Ashtech Z-xtreme (dual frequency, echosounder) receiver. OFF 3 device offsets, where antenna height is -2.48 meters. DDT 3: identifies the device (3) that the computer clock is being synchronized to. LIN: planned line data follows in the format "LIN nw" where nw=number of waypoints. PTS: planned line waypoints; easting, northing in UTM zone 19N, meters. LBP: planned line begin point; easting, northing in UTM zone 19N, meters. LNN X: planned line name where X is the line name EOL: end of planned line EOH: end of header The remaining elements have similar information in the first 3 columns. The first column will indicate the data type, the second column will indicate the device that recorded the information (e.g. 0 for Ashtech Z-Extreme receiver) and the third column is the time tag (seconds past midnight) that is also sometimes referred to as the latency. The remaining information on each line is specific to the data type. POS: Position of the ship - in this case the antenna - in the format "POS dn t x y z" where dn=device number; t=time tag (seconds past midnight); x=easting; y=northing. On this cruise these values are in UTM, Zone 19N, WGS84. QUA: Position quality information in the format "QUA dn t n m h sat mode" where dn=device number; t=time tag (seconds past midnight); n=number of values to follow; m = 10 minus HDOP (horizontal dilution of precision); h=HDOP; sat=number of satellites; mode=GPS mode (NMEA 0183 standard values) RAW: dn t n lat long alt utc" where dn=device number; t=time tag (seconds past midnight); n=number of values to follow; lat=raw latitude in the format ddmmmm.mmmm. To convert to ddmm.mmmmm multiply by 100; long=raw longitude in the format ddmmmm.mmmm. To convert to ddmm.mmmmm multiply by 100; alt=antenna altitude above ellipsoid (meters); utc=GPS time in the format HHMM GYR: Gyro Data (heading) in the format "GYR dn t h" where dn=device number; t=time tag (seconds past midnight); h=shipheading angle. MSG: Message string in the format "MSG dn t message" where dn=device number; t=time tag (seconds past midnight); message is the message sent from the device. On this cruise, five different messages were sent from the DGPS: $GPGGA, $GPZDA, $GPVTG, $SDDPT, $GPHDT. These will be defined later. TID: Tide correction in the format "TID dn t dc" where dn=device number, t=time tag (seconds past midnight), dc = draft correction. EC1: Echo Sounding (single frequency) in the format "EC1 dn t rd" where dn=device number; t=time tag (seconds past midnight); rd=raw depth in meters. FIX: events marked manually by the user in the format "FIX dn t event_number" where dn=device number (typically 99 as there is no device for manual events); t=time tag (seconds past midnight); event_number=event number such as 1,2,3,4. The National Marine Electronics Association (NMEA) strings present in the HYPACK file are the $GPVTG, $GPZDA, $SDDPT, $GPGGA and $GPHDT. These are defined as follows: $GPGGA is GPS fix data in the format "$GPGGA, t, lat, lath, long, longh, q, sat, h, a, M, alt, M, t2, refcheck" where t=time in UTC in the format hhmmss.ss; lat=latitude in the format ddmm.mmmmmm; lath= N or S indicating the latitude hemisphere; long=longitude in the format dddmm.mmmmmm; longh=E or W indicating the hemisphere; q=fix quality where 0=fix not available or invalid; 1=GPS fix; 2=Differential GPS fix; 3=GPS PPS Mode fix; 4=RTK fix; 5=RTK float; sat=number of satellites; h=Horizontal Dilution of Precision (HDOP); a=Antenna altitude above mean sea level (geoid); M= units of antenna altitude in meters; alt=height of geoid above WGS84 ellipsoid; M=units of geoidal height in meters; t2=time since last DGPS update; refcheck=DGPS reference station id and the checksum. Example: $GPGGA,173356.00,4204.848996,N,07036.929067,W,4,09,01.1,00003.278,M,-028.888,M,01,0000*56 >UTC Time = 173356 >Latitude = 4204.848996 N >Longitude = 7036.929067 W >Fix Quality = 4 (indicates RTK) >Number of satellites = 9 >HDOP = 01.1 relative accuracy of horizontal position >Altitude = 3.278 meters above mean sea level >Height of geoid above WGS84 ellipsoid = -28.888 meters >Time since last update = 01 >Checksum = *57. $GPVTG is track made good and ground speed in the format "$GPVTG, true, T, mag, M, grsp1, N, grsp2, K, mode", where t=true course made good over ground in degrees, T= True, m=magnetic course made good over ground in degrees, M=magnetic, grsp1=ground speed, N=Knots, grsp2=ground speed, K=Kilometers per hour, mode=Mode indicator (A=Autonomous, D=Differential, E=Estimated, N=Data not valid). Example: $GPVTG,340.39,T,356.37,M,005.50,N,010.18,K,D*27 >True course made good: 340.39 >Magnetic course made good: 356.37 >Ground speed (knots) = 5.5 >Ground speed (kilometers) = 10.18 >Mode=Differential $GPZDA is UTC Date/Time and Local Time Zone Offset in the format "$GPZDA,hhmmss.ss,xx,xx,xxxx,xx,xx" where hhmmss.ss=UTC, xx=Day, 01 to 31, xx=month, 01 to 12, xxx=Year, xx=Local zone description, 00 to +/- 13 hours, xx=Local zone minutes description (same sign as hours), checksum. Example: $GPZDA,173357.00,28,04,2007,,*69 >UTC= 173357.00 >UTC day = 28 >UTC month = 04 >UTC year = 2007 >Local zone hours = null >Local zone minutes = null >Checksum = *69 $SDDPT is water depth in the format "$SDDPT, data_meters, offset *checksum" Example: $SDDPT,1.6,0.0*50 >Depth in meters = 1.6 >Offset from transducer:0.0 Positive - distance from transducer to water line, or Negative - distance from transducer to keel Entity_and_Attribute_Detail_Citation: The definitions of the HYPACK strings were acquired from the HYPACK software manual available from: . The definitions of the NMEA strings were obtained from: Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton 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) 548-8700x2259 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: ependleton@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 U.S. Geological Survey 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: HYPACK Format_Version_Number: 9.0.5.17 Format_Specification: Text Format_Information_Content: This WinZip (v. 14.5) file contains compressed raw HYPACK navigation as well as associated metadata. File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 17 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2012/1258/GIS_catalog/hypack/2010-072-FA_hypack.zip Network_Resource_Name: https://pubs.usgs.gov/of/2012/1258/html/ofr2012-1258_GIS_catalog.html Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Fees: none Technical_Prerequisites: These data can be viewed with any text editing software. Metadata_Reference_Information: Metadata_Date: 20240318 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton 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) 548-8700x2259 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 Metadata_Access_Constraints: None Metadata_Use_Constraints: None