Bathymetric Terrain Model of the Puerto Rico Trench and Northeastern Caribbean Region Compiled by the U.S. Geological Survey From Multibeam Bathymetric Data Collected Between 2002 and 2013 (PRBATHOFR150, Esri Binary Grid, UTM19, WGS 84).

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently anticipated questions:


What does this data set describe?

Title:
Bathymetric Terrain Model of the Puerto Rico Trench and Northeastern Caribbean Region Compiled by the U.S. Geological Survey From Multibeam Bathymetric Data Collected Between 2002 and 2013 (PRBATHOFR150, Esri Binary Grid, UTM19, WGS 84).
Abstract:
Bathymetric terrain models (BTMs) of seafloor morphology are an important component of marine geological investigations. Advances in technologies of acquiring and processing bathymetric data have facilitated the creation of high-resolution bathymetric surfaces that approach the resolution of those available for onshore investigations. These bathymetric terrain models provide a detailed representation of the Earth's subaqueous surface and when combined with other geophysical and geologic datasets, allow for interpretation of modern and ancient geologic processes. More information about the individual USGS source surveys (if USGS scientists participated in survey) for this grid can be found on the Woods Hole Coastal and Marine Science Center Field Activity webpage: 2002-051-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2002-051-FA 2003-008-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2003-008-FA 2003-032-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2003-032-FA 2005-019-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2005-019-FA 2006-008-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2006-008-FA 2007-004-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2007-004-FA 2013-036-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-036-FA
  1. How might this data set be cited?
    U.S. Geological Survey, 2014, Bathymetric Terrain Model of the Puerto Rico Trench and Northeastern Caribbean Region Compiled by the U.S. Geological Survey From Multibeam Bathymetric Data Collected Between 2002 and 2013 (PRBATHOFR150, Esri Binary Grid, UTM19, WGS 84).: Open-File Report 2013-1125, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts.

    Online Links:

    This is part of the following larger work.

    Andrews, Brian D., Uri S. ten Brink, Danforth, William W., Chaytor, Jason D., Bruña, José-Luis Granja, Estrada, Pilar Llanes, and Carbó-Gorosabel, Andrés, 2014, Bathymetric Terrain Model of Puerto Rico Trench and Northeast Caribbean Region for Marine Geological Investigations: Open-File Report 2013-1125, U.S. Geological Survey, Reston, Virginia.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -71.408390
    East_Bounding_Coordinate: -61.877175
    North_Bounding_Coordinate: 20.581886
    South_Bounding_Coordinate: 16.805435
  3. What does it look like?
    prbathofr150.jpg (JPEG)
    Thumbnail image of gridded bathymetry from the Puerto Rico Trench and northeastern Caribbean region is included in the compressed zip file.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 24-Sep-2002
    Ending_Date: 13-Oct-2013
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: raster digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Raster data set. It contains the following raster data types:
      • Dimensions 2698 x 6637 x 1, type Grid Cell
    2. What coordinate system is used to represent geographic features?
      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 coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 150.000000
      Ordinates (y-coordinates) are specified to the nearest 150.000000
      Planar coordinates are specified in meters
      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: Instantaneous sea level
      Depth_Resolution: 9999
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
  7. How does the data set describe geographic features?
    Value
    Depth in meters (Source: Esri)
    Information unavailable from original metadata.
    Information unavailable from original metadata. (Source: Information unavailable from original metadata.)
    Range of values
    Minimum:-8526.8
    Maximum:-20.23
    Units:meters
    Entity_and_Attribute_Overview:
    Bathymetric depth values in Esri Raster format. Data values represent depth in meters relative to instantaneous sea level.
    Entity_and_Attribute_Detail_Citation: Esri

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?

Why was the data set created?

The purpose of this bathymetric terrain model is to provide a high-quality bathymetric surface of the Puerto Rico Trench and Caribbean Region to identify and characterize historical submarine landslides capable of generating tsunamis and for future geological investigations.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: unknown (process 1 of 12)
    Step 1: Collect data and import multibeam line files into CARIS Hydrographic Information Processing System (HIPS) (versions is year-dependent). Multibeam line files were collected, and processed by onboard USGS personnel during the surveys, except for NF-07-05-CRER and were later archived with NOAA NGDC by NOAA. Basic information about each survey and the surface produces is listed below: Where:
    NGDC Cruise Name= The name assigned by NGDC for the survey if they were NOAA-related surveys.
    USGS FAN= The USGS Field Activity Number assigned by USGS Woods Hole Science Center for the survey (if USGS personnel were involved)
    Archive= the address of the National Geophysical Data Center archive location where raw data were archived by NGDC after the survey. If data are not archived with NGDC this link is the USGS Field Activity Report that provides basic survey information.
    Survey Date= The calendar dates of the survey and data collection by on board USGS personnel.
    Output Surface= The name of the final CARIS surface (in .csar format) that was used in the combine function.
    Creation Date=  the calendar date the latest surface was created for input to the combine function.
    If any edits were made to a surface, it is rebuilt, interpolated, and a new creation data is recorded. Format = YYYYMMDD
    >
    NGDC Cruise Name: RB0208
    USGS FAN: 2002-051-FA
    Archive:http://surveys.ngdc.noaa.gov/mgg/MB/ocean/ronald_h._brown/RB0208/multibeam/data/version1/MB/
    Survey Date:20020224-20020230
    Output Surface: RB2002Cube150m_Interp.csar
    Creation Date: 20140317
    >
    NGDC Cruise Name:RB0303
    USGS FAN: 2003-008-FA
    Archive: http://surveys.ngdc.noaa.gov/mgg/MB/ocean/ronald_h._brown/RB0303/multibeam/data/version1/MB/
    Survey Date: 20030221-20030307
    Output Surface: RB2003Cube150m_Interp2.csar
    Creation Date: 20140317
    >
    NGDC Cruise Name: RB0305
    USGS FAN: 2003-032-FA
    Archive:http://surveys.ngdc.noaa.gov/mgg/MB/ocean/ronald_h._brown/RB0305/multibeam/data/version1/MB/
    Survey Date:20030828-20030904
    Output Surface: RB03_05Cube150m_Interp.csar
    Creation Date: 20140317
    >
    NGDC Cruise Name: No NGDC Cruise Name. Line files are not archived with NGDC and not publicly available.
    USGS FAN:2005-019-FA
    Survey Date: 20050328-20050417
    USGS Field Activity Report: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2005-019-FA
    Data are property of the Spanish Navy and not publicly available.
    Output Surface:Hesp05_150mInterp.csar
    Creation Date: 20140317
    >
    NGDC Cruise Name: RB0604
    USGS FAN: 2006-008-FA
    Archive: http://surveys.ngdc.noaa.gov/mgg/MB/ocean/ronald_h._brown/RB0604/multibeam/data/version1/MB/
    Survey Date:20060503-20050519
    Output Surface: RB2006Cube150m_Interp.csar
    Creation Date: 20140317
    >
    NGDC Cruise Name: NF-07-04-PMEL
    USGS FAN:2007-004-FA
    Archive: http://surveys.ngdc.noaa.gov/mgg/MB/ocean/nancy_foster/NF-07-04-PMEL/multibeam/data/version1/MB/
    Survey Date:20070314-20070326
    Output Surface: NF07_150m_Interp.csar
    Creation Date:20130314
    >
    NGDC Cruise Name:NF-07-05-CRER
    USGS FAN: No USGS FAN because no USGS personnel were on board. Data were collected and provided by Ryan Smith, NOAA office of Atlantic Oceanographic and Meteorological Laboratory.
    Survey Date:20070328-20070404
    Output Surface: NF0705BB_150m.csar
    Creation Date:20140206
    >
    NGDC Cruise Name: Data are not archived with NGDC and currently property of The Ocean Exploration Trust.
    USGS FAN: 2013-036-FA
    Survey Date: 20130510-20131810
    Output Surface: OFR Nautilus150m.csar
    Creation Date:20140207
    
    Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Date: 2013 (process 2 of 12)
    Step 2: Import multibeam line files into CARIS HIPS for processing: This step is the same for all eight surveys in this grid and summarized below. Produced new CARIS HIPS project (version varies depending on year) for each of the eight surveys and imported the line files by Julian day. Line files were recorded using the geographic coordinate system (WGS 84). During the import process a tide elevation of zero was merged into each line and no further tide corrections were applied. Separate Field Sheets were produced in HIPS using the Universal Transverse Mercator (UTM) Coordinate System, Zone 19 (WGS 84). Depth surfaces were produced (150 m resolution) for each survey using all the lines in the survey in the CARIS Spatial ARchive (csar) format. Processing took place during 2002, 2003, 2005, 2007 and 2013. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Date: 2014 (process 3 of 12)
    Step 3: HIPS editing: All line files in each survey were reviewed using the HIPS Swath Editor feature to filter and remove inaccurate soundings. Further editing was completed using the 3-D subset editor. Corrections to the speed of sound were applied using the Refraction Editor if required. Finally, the depth surfaces were rebuilt after all editing was complete and interpolated using a 5x5 matrix size and at least 6 neighboring cells. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Data sources produced in this process:
    • RB2002Cube150m_Interp.csar
    • RB2003Cube150m_Interp2.csar
    • RB03_05Cube150m_Interp.csar
    • Hesp05_150mInterp.csar
    • RB2006Cube150m_Interp.csar
    • NF07_150m_Interp.csar
    • NF0705BB_150m.csar
    • OFR_Nautilus150m.csar
    Date: 17-Mar-2014 (process 4 of 12)
    Step 4: Combine 2003 Ronald Brown surfaces. Using CARIS Base Editor (v. 4.0.9), the depth surfaces produced from the two 2003 Ronald H. Brown surveys were combined using the "Start Date is Greatest" Criteria. This criteria applied during the combine process puts the surface with the oldest date of data collection on the bottom (RB2003Cube150m_Interp2.csar) and the newest data(RB03_05Cube150m_Interp.csar) on top during the combine function. This combine criteria dictates the cell value that remains when two or more cells overlap from different surfaces. Note: A complete record of the source surfaces used to produce the final grid (prbathofr150) are in the "PRBathSource.shp" shapefile published in this report. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Data sources used in this process:
    • RB2003Cube150m_Interp2.csar
    • RB03_05Cube150m_Interp.csar
    Data sources produced in this process:
    • RB03_SDIG.csar
    Date: 18-Mar-2014 (process 5 of 12)
    Step 5: Combine all four Ronald H. Brown Surveys. Using CARIS Base Editor (v. 4.0.9), the depth surfaces produced from the 2002, 2003, and 2006 Ronald H. Brown surveys were combined using the "Start Date is Greatest" Criteria. This criteria applied during the combine process puts the surface with the oldest date of data collection on the bottom (RB2002Cube150m_Interp.csar) and the newest data on top (RB2006Cube150m_Interp.csar) during the combine function. This combine criteria dictates the cell value that remains when two or more cells overlap from different surfaces. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Data sources used in this process:
    • RB2006Cube150m_Interp.csar
    • RB2002Cube150m_Interp.csar
    • RB03_SDIG.csar
    Data sources produced in this process:
    • RB02_03_06_SDIG.csar
    Date: 18-Mar-2014 (process 6 of 12)
    Step 6: Combined Hespérides surface with Ronald H. Brown surface. Using CARIS Base Editor (v. 4.0.9), the depth surfaces produced from the four Ronald H. Brown surveys was combined with the 2005 Hespérides surface using the "Creation Date is Greatest" Criteria. This criteria applied during the combine process puts the surface with the oldest creation date (Hesp05_150mInterp.csar) on the bottom and the surface with newest creation date (RB03_SDIG.csar) data on top during the combine function. This combine criteria dictates the cell value that remains when two or more cells overlap from different surfaces. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Data sources used in this process:
    • RB03_SDIG.csar
    • Hesp05_150mInterp.csar
    Data sources produced in this process:
    • RBHesp_150.csar
    Date: 19-Mar-2014 (process 7 of 12)
    Step 7: Final combine Using CARIS Base Editor (v. 4.0.9), the depth surfaces produced from the Nancy Foster, Nautilus, Ronald H. Brown, and Hespérides surveys were combined using the "Creation Date is Least" Criteria. This criteria applied during the combine process puts the surface with the most recent creation dateRBHesp_150_Interp.csar) on the bottom and the older surface on top (OFR_Nautilus150m.csar)during the combine function. This combine criteria dictates the cell value that remains when two or more cells overlap from different surfaces. Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Data sources used in this process:
    • OFR_Nautilus150m.csar
    • NF07_150m_Interp.csar
    • NF0705BB_150m.csar
    • RBHesp_150_Interp.csar
    Data sources produced in this process:
    • RBHespNFNaut_150.csar
    Date: 19-Mar-2014 (process 8 of 12)
    Step 8: Convert from CARIS to ArcGIS. Exported the final combined surface from Base Editor to ArcGIS using the "Export to ESRI ASCII Grid" feature under the file menu in Base Editor. Converted the .asc file into a 32-bit floating point grid (prbathofr150) using the ASCIItoRaster tool in ArcToolbox v. 9.3.1) Person who carried out this activity:
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    508-457-2310 (FAX)
    bandrews@usgs.gov
    Data sources used in this process:
    • RBHespNFNaut_150.csar
    Data sources produced in this process:
    • PRBathOfr150m.asc
    • PRBathOFR150 (grid)
    Date: 17-Jun-2016 (process 9 of 12)
    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.). A link in the horizontal accuracy report was changed - the link that was there was no longer valid. The depth resolution value of "unknown" was changed to 9999 to meet standard requirements. Minor fixes to the attribute format for some attributes were needed. 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. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 20-Jul-2018 (process 10 of 12)
    USGS Thesaurus keywords added to the keyword section. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 18-Nov-2019 (process 11 of 12)
    Crossref DOI link was added as the first link in the metadata. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 08-Sep-2020 (process 12 of 12)
    Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Uri S. ten Brink, Danforth, William W., Polloni, Christopher F., Parker, Castle Eugene, Uozumi, Toshihiko, and Williams, Glynn F., 2005, Project PROBE Leg II - Final Report and Archive of Swath Bathymetric Sonar, CTD/XBT and GPS Navigation Data Collected During USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003: Open-File Report 2004-1400, U.S. Geological Survey, Reston, VA.

    Online Links:

    Brink, Uri ten, Worley, Charles R., Smith, Lt. Shep, Stepka, Thomas, and Williams, Glynn F., 2006, Project PROBE Leg I - Report and Archive of Multibeam Bathymetry and Acoustic Backscatter, CTD/XBT and GPS Navigation Data Collected During USGS Cruise 02051 (NOAA Cruise RB0208) Puerto Rico Trench, September 24, 2002 to September 30, 2002.: Open-File Report 2005-1066, U.S. Geological Survey, Reston, VA.

    Online Links:

    Uri S. ten Brink, Danforth, William W., and Polloni, Christopher F., 2013, Final report and archive of the swath bathymetry and ancillary data collected in the Puerto Rico Trench region in 2002 and 2003.: Open-File Report 2006-1210, U.S. Geological Survey, Reston, VA.

    Online Links:

    Egbert, Gary D., and Erofeeva, Lana S., unknown, The OSU TOPEX/Poseidon global inverse solution TPXO: Oregon State University, Corvallis, OR.

    Online Links:

    Other_Citation_Details: accessed 18 July 2013

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
    Information about horizontal position accuracy for the four vessels used to collect data in this report vary depending on the vessel owner/operator. Available information is summarized below. NOAA Ship Ronald H. Brown: These data were navigated with a Differential Global Positioning System (DGPS) and a P-code receiver. These systems have an estimated horizontal accuracy of +/- 3 meters. NOAA Ship Nancy Foster: Data were navigated using Trimble Zephyr GPS receiver and POS/MV Differential Global Positioning System (DGPS). A Data Acquisition and Processing Report conducted by NOAA Hydrographers in April 2007 shows that these data meet or exceed IHO compliance for IHO order 1. Full report if available at: http://oceanservice.noaa.gov/. R/V Hespérides: No horizontal accuracy information is available. E/V Nautilus: Horizontal position accuracy test were conducted in April 2013.The results from this test show that the EM302 multibeam sonar exceeds the IHO Order 1 standards (2*stdev(depth) or +/-9.4 m) and also exceeds Special Order (< 2 m offset).
  3. How accurate are the heights or depths?
    All bathymetric files were collected using instantaneous sea level and no additional tidal corrections were applied. Instantaneous sea level indicates that the data were not referenced to a tidal datum, rather the depths represent a height that is dependent on the local sea level at that location and time. Instantaneous Sea Level does not correlate to Mean Sea Level, however for comparison, the total tidal levels (tides, plus no-tidal sea surface heights above the geoid) range between -0.77 meters and 0.81 meters above the geoid for the period 1992-2013 (Egbert and Erofeeva, 2013)
  4. Where are the gaps in the data? What is missing?
    This grid is a compilation of 8 separate surveys conducted between 2002 and 2013. Data were collected using different vessels and sonars, however, the data were processed and editing using the same methods detailed below.
  5. How consistent are the relationships among the observations, including topology?
    Information unavailable from original metadata.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_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 (USGS) as the source of this information.
Use_Constraints: Data are not to be used for navigation.
  1. Who distributes the data set? (Distributor 1 of 1)
    Brian Andrews
    U.S. Geological Survey
    Geographer
    384 Woods Hole Rd.
    Woods Hole, MA
    USA

    508-548-8700 x2348 (voice)
    bandrews@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    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.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data are available as an ArcInfo 32-bit floating point binary grid in Environmental Systems Research Institute (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 WinZip file and importing and viewing an Esri ArcRaster grid. The two folders for each grid must be uncompressed to the same folder.

Who wrote the metadata?

Dates:
Last modified: 08-Sep-2020
Metadata author:
Brian Andrews
U.S. Geological Survey
Geographer
384 Woods Hole Rd.
Woods Hole, MA
USA

508-548-8700 x2348 (voice)
508-457-2310 (FAX)
bandrews@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2013-1125/prbathofr150.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:20:40 2021