Polygon Boundary Describing the Source Surveys Used to Build the Bathymetric Terrain Model of the Puerto Rico Trench and Northeastern Caribbean Region Compiled by the U.S. Geological Survey (PRBATHSOURCE, Esri Shapefile, Geographic projection WGS 84).

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

Frequently anticipated questions:


What does this data set describe?

Title:
Polygon Boundary Describing the Source Surveys Used to Build the Bathymetric Terrain Model of the Puerto Rico Trench and Northeastern Caribbean Region Compiled by the U.S. Geological Survey (PRBATHSOURCE, Esri Shapefile, Geographic projection WGS 84).
Abstract:
Bathymetric terrain models (BTMs) of seafloor morphology are an important component of marine geological investigations. Advances in acquisition and processing technologies of bathymetry 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, Polygon Boundary Describing the Source Surveys Used to Build the Bathymetric Terrain Model of the Puerto Rico Trench and Northeastern Caribbean Region Compiled by the U.S. Geological Survey (PRBATHSOURCE, Esri Shapefile, Geographic projection 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 Northeastern 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: -71.300926
    East_Bounding_Coordinate: -62.001604
    North_Bounding_Coordinate: 20.449303
    South_Bounding_Coordinate: 16.985841
  3. What does it look like?
    PRBathSource.jpg (JPEG)
    Thumbnail image of bathymetric source polygon for 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: vector digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • G-polygon (8)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. 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.
  7. How does the data set describe geographic features?
    PRBathSource
    polygon shapefile delineating the source of all input bathymetric grids. (Source: USGS)
    FID
    Internal feature number. (Source: Esri) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: Esri) Sequential unique whole numbers that are automatically generated.
    Shape_Area
    Area of feature in square meters calculated in the feature class using UTM Zone 19 meters, before it was exported to shapefile (Source: Esri)
    Range of values
    Minimum:42.03
    Maximum:51877.06
    Units:meters
    Positive real numbers that are automatically generated.
    Source
    The name of the CARIS HIPS fieldsheet and surface that was used to generate the polygon boundary (Source: USGS) Character set.
    SurveyName
    Name of USGS Field Activity Number. Except for NF-07-CRER that uses the NGDC_ID because it was not a USGS survey. (Source: USGS) Character set.

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?
    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

Why was the data set created?

The purpose of this polygon shapefile is to delineate the extent of each survey that contributed to the final bathymetric grid (prbathofr150) that is published in this report.

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: 17-Mar-2014 (process 1 of 6)
    Step 1: Create a new blank feature layer, and transfer the extents of the Contributor Layer produced in the combine process described below. Within CARIS Base Editor (v. 4.0) select the "Create" and "new feature layer" from the main menu and use the spatial extent of the combined surface and name the new feature layer. Input name="Contributor", output name= "VesselName+Cont" (example= RBCont). The extent of the input Contributor layer is produced during the "Combine" operation in Base Editor. 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: 17-Mar-2014 (process 2 of 6)
    Step 2: Convert the new feature layer to an Esri feature class. Part 1: Manually select the new feature layer in the table of contents and then under "File" in the main menu select "Export" to "Selection to shapefile". Input = "VesselName"Con from Step 1, Output= "VesselName"ContPgon.shp. Part 2: Make new Esri file geodatabase (v. 9.3.1) to manage the contributor layers. Import the shapefiles from Part 1 above into the geodatabase using the context menu in ArcCatalog (v. 9.3.1). Input shapefile="VesselName"ContPgon.shp. Output feature class = "VesselName"ContPgon 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: 18-Mar-2014 (process 3 of 6)
    Step 3: Merge the individual Contributor feature class layers into one feature class using the "Update tool in ArcGIS (v. 9.3.1). The update features are used to erase, then replace, the features in the input feature class or feature layer. Three consecutive update steps were performed: Update 1: input feature= RB03Cont, update feature= RB03_02_06Cont, output feature= RBAll4Cont. Update 2: input feature= HespCont, update feature=RBAll4Cont, output feature=RBHespCont Update 3: input feature= RBHespCont, update feature=NF_NautCont, output feature=PRBathSource. 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: 18-Mar-2014 (process 4 of 6)
    Step 4: Export the feature class from a geodatabase feature class (PRBathSource) to a shapefile (PRBathSource.shp) using the context menu in ArcMap (ver. 9.3.1). During the export operation, the shapefile was projected from UTM Zone 19 (WGS 84) to Geographic (WGS 84) by using the same coordinate system as the data frame in ArcMap (set to Geographic WGS 84). Add two text fields "Source" and "SurveyName" to the shapefile. Populate "Source" field with "INFORM" field then delete "INFORM" field. Manually populate the "SurveyName" field with USGS Field Activity Number (if survey has one). Use the NGDC CruiseName for NF-05-CRER. 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: 17-Jun-2016 (process 5 of 6)
    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 link to the data in the Distribution_Information section had to be fixed. 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. 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 6 of 6)
    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
  3. What similar or related data should the user be aware of?

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?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    The individual polygons only delineate the extent of bathymetric data used to compile the bathymetric terrain model and may not include all the data collected during the individual survey.
  5. How consistent are the relationships among the observations, including topology?
    Polygon boundaries are generated from 150 meter resolution bathymetric surface in CARIS Base Editor (v. 4.0) prior to interpolation to fill small holes in the base surface. Therefore, this shapefile has holes or "no data" values within the boundaries of the shapefile that represent these "no data" values in the base surface that were filled in with interpolation (if required).

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: none
  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?
    This zip file contains data available in Environmental Systems Research Institute (Esri) shapefile format. The user must have software capable of uncompressing the WinZip file and displaying the shapefile. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from Esri at www.esri.com

Who wrote the metadata?

Dates:
Last modified: 20-Jul-2018
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/caribbean/prt/PRBathSource.faq.html>
Generated by mp version 2.9.49 on Mon Sep 10 17:44:50 2018