Metadata: Identification_Information: Citation: Citation_Information: Originator: John F. Bratton Originator: VeeAnn A. Cross Publication_Date: 2014 Title: Raw and modified raw continuous resistivity profiling data collected in the Indian River Bay, Delaware, on April 13, 2010, on U.S. Geological Survey Field Activity 2010-006-FA Edition: 1 Series_Information: Series_Name: Open-File Report Issue_Identification: 2011-1039 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/ofr20111039 Online_Linkage: https://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html Online_Linkage: https://pubs.usgs.gov/of/2011/1039/data/resistivity/raw_resis/apr13_raw.zip Larger_Work_Citation: Citation_Information: Originator: V.A. Cross Originator: J.F. Bratton Originator: H.A. Michael Originator: K.D. Kroeger Originator: A. Green Originator: E. Bergeron Publication_Date: 2014 Title: Continuous Resistivity Profiling and Seismic-Reflection Data Collected in April 2010 from Indian River Bay, Delaware Edition: 1 Series_Information: Series_Name: Open-File Report Issue_Identification: 2011-1039 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2011/1039/ Online_Linkage: https://doi.org/10.3133/ofr20111039 Description: Abstract: A geophysical survey to delineate the fresh-saline groundwater interface and associated sub-bottom sedimentary structures beneath Indian River Bay, Delaware, was carried out in April 2010. This included surveying at higher spatial resolution in the vicinity of a study site at Holts Landing, where intensive onshore and offshore studies were subsequently completed. The total length of continuous resistivity profiling (CRP) survey lines was 145 kilometers (km), with 36 km of chirp seismic lines surveyed around the perimeter of the bay. Medium-resolution CRP surveying was performed using a 50-meter streamer in a bay-wide grid. Results of the surveying and data inversion showed the presence of many buried paleochannels beneath Indian River Bay that generally extended perpendicular from the shoreline in areas of modern tributaries, tidal creeks, and marshes. An especially wide and deep paleochannel system was imaged in the southeastern part of the bay near White Creek. Many paleochannels also had high-resistivity anomalies corresponding to low-salinity groundwater plumes associated with them, likely due to the presence of fine-grained estuarine mud and peats in the channel fills that act as submarine confining units. Where present, these units allow plumes of low-salinity groundwater that was recharged onshore to move beyond the shoreline, creating a complex fresh-saline groundwater interface in the subsurface. The properties of this interface are important considerations in construction of accurate coastal groundwater flow models. These models are required to help predict how nutrient-rich groundwater, recharged in agricultural watersheds such as this one, makes its way into coastal bays and impacts surface water quality and estuarine ecosystems. For more information on the survey conducted for this project, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-006-FA. Purpose: The purpose of this dataset is to provide the raw and modified raw continuous resistivity profile data collected on April 13, 2010 in Indian River Bay by the AGI SuperSting system. Modifications to the raw data were necessary in order to prepare the data for processing. In order to effectively process the resistivity data, valid depth values are necessary. This raw dataset contains the original GPS files as well as the "newgps" files that are used in the eventual processing of the data. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20100413 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -75.202683 East_Bounding_Coordinate: -75.065683 North_Bounding_Coordinate: 38.618983 South_Bounding_Coordinate: 38.569250 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:38687c9f-b5c3-48e7-823f-58ada492c971 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: WHCMSC Theme_Keyword: Field Activity Number 2010-006-FA Theme_Keyword: Info Bank ID K-6-10-DL Theme_Keyword: navigation Theme_Keyword: bathymetry Theme_Keyword: water temperature Theme_Keyword: continuous resistivity profiling Theme_Keyword: CRP Theme_Keyword: R/V Knob Theme_Keyword: Lowrance GPS Theme_Keyword: AGI SuperSting Theme_Keyword: raw data Theme_Keyword: groundwater Theme_Keyword: submarine groundwater Theme_Keyword: Open-file Report 2011-1039 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: elevation Theme_Keyword: location Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: continuous resistivity profiling Theme_Keyword: navigational data Place: Place_Keyword_Thesaurus: None Place_Keyword: North America Place_Keyword: North Atlantic Ocean Place_Keyword: United States Place_Keyword: Delaware Place_Keyword: Indian River Bay Place_Keyword: Indian River Inlet Place_Keyword: Holts Landing Place_Keyword: Piney Neck Place_Keyword: Rosedale Beach Access_Constraints: None. Use_Constraints: The 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: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: Woods Hole Coastal and Marine Science Center Address: 384 Woods Hole Rd. 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 Native_Data_Set_Environment: Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095 Data_Quality_Information: Logical_Consistency_Report: Each file was looked at individually, but the files as a collection were handled in the same manner. Completeness_Report: Apparent gaps based on the file naming convention appear in this dataset. These data files were not omitted, no data was collected on these lines. The apparent missing files from this day are L1F2, L1F4, L1F6, L5F3, L5F4. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The navigation system used was a Lowrance 480M with an LGC-2000 Global Positioning System (GPS) antenna. The antenna was located directly above the fathometer transducer mount point, but offset to the starboard by 2 meters from the resistivity streamer tow point. GPS data are assumed to be accurate wtihin 10 meters on this survey. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: All bathymetry values were acquired by the 200 kHz Lowrance fathometer. The fathometer was mounted on the starboard side of the R/V Knob, directly below the GPS antenna. The Lowrance manufacturer indicates the speed of sound used by the system to calculate depth is 4800 feet/second. The depth values are not corrected for the approximately 0.2 m transducer draft. All depth values are assumed to be accurate to within 1 meter. Lineage: Process_Step: Process_Description: The continuous resistivity profile (CRP) system used on this cruise was an AGI SuperSting marine system described at the website: www.agiusa.com/marinesystem.shtml. The particular system used for this acquisition was a 50-m streamer with an 11 electrode array with electrodes spaced 5 meters apart. The source electrodes are graphite, while the receiver electrodes are stainless steel. A dipole-dipole configuration was used for the data collection in which two fixed current electrodes are assigned with the measurement of voltage potential between electrode pairs in the remaining electrodes. The maximum depth below the water surface the streamer can reach is approximately 1/4 the streamer length. So for the 50-m streamer, maximum depth is about 12.5 meters. Each line of data acquisition records several files. The two files necessary for processing are the *.stg and the *.gps file. The STG file contains the resistivity data, while the GPS file contains the navigation information. The navigation system used in concert with the CRP system is a Lowrance LMS-480M with an LGC-2000 GPS antenna and a 200 kHz fathometer transducer. The antenna and fathometer transducer were mounted on the starboard side of the boat. The streamer tow point was on the port side aft. The layback offset between the navigation antenna and the first electrode was 17.6 meters on April 13 and 14. On April 15 the antenna and transducer were moved 1.6 m aft changing the layback offset to 16 m. This layback offset is accounted for by the acquisition system. The approximately 2 m lateral offset is not accounted for. The Lowrance transducer also contains a temperature sensor. Lowrance indicates the speed of sound used by the system is 4800 feet/second. Both the temperature and depth information are recorded in the logged GPS file. There are instances where no depth or temperature information is recorded due to an equipment problem. The CRP system images the subsurface electrical properties of an estuarine, riverine or lacustrine environment. Resistivity differences can be attributed to subsurface geology (conductive vs less conductive layers) and hydrogeologic conditions with fresh water exhibiting high resistivity and saline conditions showing low resistivity. Process_Date: 2010 Process_Step: Process_Description: The acquisition controlling command file (*.cmd) was set up indicating an electrode spacing of 1 meter. At the time of data acquisition, a scaling factor of 5 was used to reflect the actual 5 meter electrode spacing of the streamer. The data were transferred from the logging computer using AGISSAdmin software version 1.3.4.198. These files were then emailed from the field to the USGS office in Woods Hole in a single zip file. The data files included in this release are the *.crs, *.cmd, *.gps, and *.stg. The two files essential for processing are the GPS and STG files. The GPS file contains the navigation, and in the case of the Lowrance system also includes water depth and water temperature. The STG file contains the resistivity measurements from each of the electrodes. The CRS file contains the contact resistance readings. The CMD file contains the parameters for data collection. These last two files aren't necessary for data processing, but can be useful in terms of troubleshooting. The field collection and data transfer were done by Emile Bergeron of the USGS. Process_Date: 20100414 Source_Produced_Citation_Abbreviation: JD103_ZIP.zip Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Emile M. Bergeron Contact_Organization: U.S. Geological Survey Contact_Position: Electronics Technician Contact_Address: Address_Type: mailing address Address: Woods Hole Coastal and Marine Science Center Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2337 Contact_Facsimile_Telephone: (508) 457-2313 Contact_Electronic_Mail_Address: ebergeron@usgs.gov Process_Step: Process_Description: The first step is to check the navigation in the GPS files. One file - L5F2 - had a sizeable navigation gap of approximately 6 minutes. This file was split into 2 parts effectively eliminating the navigation gap. The resulting new files are L5F2_part1 and L5F2_part2. Both the GPS files and the STG files were split into the new parts. Additionally the navigation in the GPS files were inspected visually. This was done by quickly parsing the GPS text files into comma-delimited text files with a header line, and then viewing the files in ArcMap 9.2. The AWK script used to parse the navigation was awkhold. awkhold: > awkhold: >BEGIN { >FS = "," >} >{ >FS = "," >ARGC = 2 >depth = -9999 >temp = -9999 >if ($1=="$GPRMC") > { > utctime = $2 > utcdate = $10 > latdeg = substr($4,1,2) > latmin = substr($4,3,6) > declat = latdeg + (latmin/60) > londeg = substr($6,1,3) > lonmin = substr($6,4,6) > declon = -1 * (londeg + (lonmin/60)) > if (NR==1) { > holddepth = -9999 > holdtemp = -9999 > } > else { > printf("%s, %s, %9.6f, %9.6f, %5.1f, %5.1f, %s\n", holdutctime, holdutcdate, holddeclon, holddeclat, holddepth, holdtemp, ARGV[2]) > } > holdutctime = utctime > holdutcdate = utcdate > holddeclon = declon > holddeclat = declat > holddepth = -9999 > holdtemp = -9999 > } >if ($1=="$SDDPT") > { > depthreal = $2 > holddepth = depthreal > } >if ($1=="$SDMTW") > { > tempreal = $2 > holdtemp = tempreal > } >} >END { >printf("%s, %s, %9.6f, %9.6f, %5.1f, %5.1f, %s\n", holdutctime, holdutcdate, holddeclon, holddeclat, holddepth, holdtemp, ARGV[2]) >} This file was executed by a shell script to effectively batch process all the files in a single folder with the extension gps. The batch processor was dohold. > dohold: >files=`ls *.gps | cut -d. -f1 | tr "[A-Z"] ["a-z"]` >for file in $files >do > awk -f awkhold $file.gps $file > $file.holds >done Under Cygwin, all of the *.holds files were concatenated into a single comma-delimited text file and a header line added to the file. The header line added to the text file was: gpstime, gpsdate, longitude, latitude, depth_m, temp_c, line. Using ArcMap 9.2 - Tools - Add XY Data, the comma-delimited text file was added as an event theme to ArcMap. No erroneous points were detected. Source_Used_Citation_Abbreviation: L5F2.stg Source_Used_Citation_Abbreviation: L5F2.gps Process_Date: 201004 Source_Produced_Citation_Abbreviation: L5F2_part1.stg Source_Produced_Citation_Abbreviation: L5F2_part2.stg Source_Produced_Citation_Abbreviation: L5F2_part1.gps Source_Produced_Citation_Abbreviation: L5F2_part2.gps Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: Woods Hole Coastal and Marine Science Center Address: 384 Woods Hole Rd. 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: Although the navigation fixes themselves were in good condition, the bathymetry data was very sparse. A great deal of work was done to extract the best possible depth value associated with each resistivity GPS reading. This information is outlined in detail in the metadata for jd103gps_bestdepth.shp available at https://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html. In order to effectively process the resistivity data, valid depth values are necessary. This raw dataset contains the original GPS files as well as the "newgps" files that are used in the eventual processing of the data. The first step in generating these "newgps" files was to use XTools Pro version 5.2 within ArcMap 9.2 to export attributes from jd103gps_bestdepth.shp. XTools Pro - Table Operations - Export Table to Text. The fields exported were: gpstime; gpsdate; longitude; latitude; temp_c; line; bestdepth. The output was sent to jd103newgps.txt as an ANSI text file. Source_Used_Citation_Abbreviation: jd103gps_bestdepth.shp Process_Date: 201005 Source_Produced_Citation_Abbreviation: jd103newgps.txt Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: Woods Hole Coastal and Marine Science Center Address: 384 Woods Hole Rd. 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: The output text file is comma-delimited with a header line. Using VI under Cygwin (a Unix emulator running under Windows OS), the file was edited to remove the header line. Then an AWK script was run to reformat the text file to replicate a GPS file format. > awknewgps: >BEGIN { >FS="," >} >{ >FS="," >alltime=$1 >alldate=$2 >tempc=$5 >depth=$7 >outfile=$6 "_newgps.gps" >declon=$3 * -1 >londeg=int(declon) >lonmin=(declon-londeg)*60 >declat=$4 >latdeg=int(declat) >latmin=(declat-latdeg)*60 >printf("$GPRMC,%06d,A,%02d%06.3f,N,%03d%06.3f,W,000.0,0,%06d,0,W*73\n",alltime,latdeg,latmin,londeg,lonmin,alldate) >> outfile >printf("$SDDPT,%s,0.0*56\n",depth) >> outfile >if (tempc != -9999) { > printf("$SDMTW,%s,C*01\n",tempc) >> outfile > } >} Effectively what this script does is not only format the GPS file, but also output the information to the appropriate filename (which is based on the line name). Source_Used_Citation_Abbreviation: jd103newgps.txt Process_Date: 201005 Source_Produced_Citation_Abbreviation: l1f1_newgps.gps Source_Produced_Citation_Abbreviation: l1f3_newgps.gps Source_Produced_Citation_Abbreviation: l1f5_newgps.gps Source_Produced_Citation_Abbreviation: l1f7_newgps.gps Source_Produced_Citation_Abbreviation: l2f1_newgps.gps Source_Produced_Citation_Abbreviation: l3f1_newgps.gps Source_Produced_Citation_Abbreviation: l4f1_newgps.gps Source_Produced_Citation_Abbreviation: l5f1_newgps.gps Source_Produced_Citation_Abbreviation: l5f2_part1_newgps.gps Source_Produced_Citation_Abbreviation: l5f2_part2_newgps.gps Source_Produced_Citation_Abbreviation: l5f5_newgps.gps Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: Woods Hole Coastal and Marine Science Center Address: 384 Woods Hole Rd. 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: 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. Moved the minimal source information provided to make it the first process step. 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: 20170613 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: 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_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Degrees and decimal minutes 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: Local surface Depth_Resolution: 0.1 Depth_Distance_Units: meters Depth_Encoding_Method: Implicit coordinate Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: Woods Hole Coastal and Marine Science Center Address: 384 Woods Hole Rd. 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 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: ASCII Format_Information_Content: The WinZip (v. 14) file contains all the raw CRP data from April 13, 2010 as well as the associated metadata files. Transfer_Size: 0.78 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2011/1039/data/resistivity/raw_resis/apr13_raw.zip Network_Resource_Name: https://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html Network_Resource_Name: https://doi.org/10.3133/ofr20111039 Fees: None. Technical_Prerequisites: The data are provided in a zipp compressed file. The user must have software capable of uncompressing the archive. In addition, the raw data are available in a format compatible with AGI Geosciences Marine Log Manager software. The user must have software capable of reading the AGI format in order to process these data. Metadata_Reference_Information: Metadata_Date: 20240318 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: Woods Hole Coastal and Marine Science Center Address: 384 Woods Hole Rd. 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: 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