HATTERAS_BASELINE: Offshore baseline for Hatteras Island from Oregon Inlet to Cape Hatteras Point, North Carolina (geographic, WGS84).

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Frequently anticipated questions:


What does this data set describe?

Title:
HATTERAS_BASELINE: Offshore baseline for Hatteras Island from Oregon Inlet to Cape Hatteras Point, North Carolina (geographic, WGS84).
Abstract:
The shoreline of Cape Hatteras, North Carolina, is experiencing long-term coastal erosion. In order to better understand and monitor the changing coastline, historical aerial imagery is used to map shoreline change. For the area of Hatteras Island from Cape Point to Oregon Inlet, fourteen aerial datasets from 1978-2002 were scanned and georeferenced for use in a Geographic Information System (GIS). Shoreline positions (high water line) were digitized from georeferenced imagery. The shoreline vectors were then compiled for use in the Digital Shoreline Analysis System (DSAS) ArcGIS extension in order to generate rates of shoreline change.
  1. How might this data set be cited?
    U.S. Geological Survey, 2015, HATTERAS_BASELINE: Offshore baseline for Hatteras Island from Oregon Inlet to Cape Hatteras Point, North Carolina (geographic, WGS84).: Open-File Report 2015–1002, U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida.

    Online Links:

    This is part of the following larger work.

    Hapke, Cheryl J., and Rachel E. Henderson (Hehre), 2015, Quantification of Shoreline Change Along Hatteras Island, NC: Oregon Inlet to Cape Hatteras, 1978-2002, and Associated Vector Shoreline Data.: Open-File Report 2015–1002, U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida.

    Online Links:

    Other_Citation_Details:
    Suggested bibliographic reference: Hapke, C. J., Henderson, R. E., 2015, Quantification of Shoreline Change Along Hatteras Island, NC: Oregon Inlet to Cape Hatteras, 1978-2002, and Associated Vector Shoreline Data: U.S. Geological Survey Open-File Report 2015–1002.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -75.545732
    East_Bounding_Coordinate: -75.459090
    North_Bounding_Coordinate: 35.778262
    South_Bounding_Coordinate: 35.215615
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 2015
    Currentness_Reference:
    publication date
  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):
      • String (2)
    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?
    Hatteras_Baseline
    Reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics. (Source: USGS)
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the features.
    Id
    Field required by the Digital Shoreline Analysis System (DSAS) software. DSAS uses this value to determine the ordering sequence of transects when the baseline feature contains multiple segments. Individual segments are numbered sequentially alongshore. (Source: U.S. Geological Survey)
    Range of values
    Minimum:1
    Maximum:2
    Shape_Leng
    Length of feature in meter units (UTM zone 18N, NAD 83) automatically calculated by ESRI software in the geodatabase. (Source: ESRI)
    Range of values
    Minimum:2061.44967565
    Maximum:64312.4461346

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?
    Suggested bibliographic reference: Hapke, C. J., Henderson, R. E., 2015, Quantification of Shoreline Change Along Hatteras Island, NC: Oregon Inlet to Cape Hatteras, 1978-2002, and Associated Vector Shoreline Data: U.S. Geological Survey Open-File Report 2015–1002. We would also like to thank Bill Berkemeier and Jesse McNinch of the USACE Field Research Facility (FRF) for providing access to the aerial photograph library. Jeff List contributed to the formulation of the uncertainty calculations for the rates of change, and the initial concept for deriving a shoreline database from the FRF historic photographs came from Rob Thieler, as part of the USGS North Carolina Coastal-Change Processes project.
  3. To whom should users address questions about the data?
    U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
    Attn: Rachel E. Henderson (Hehre)
    600 4th Street South
    St. Petersburg, FL
    USA

    (727)-502-8000 (voice)
    rehenderson@usgs.gov

Why was the data set created?

This dataset includes a reference baseline used by the Digital Shoreline Analysis System (DSAS) to calculate rate-of-change statistics for Hatteras Island, NC from Oregon Inlet to Cape Hatteras Point. This baseline layer serves as the starting point for all transects cast by the DSAS application. The transects intersect each shoreline and establish measurement points used to calculate shoreline-change rates.

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: 01-Oct-2010 (process 1 of 4)
    A baseline was constructed offshore from the time series of shoreline positions using standard editing tools in ArcMap v. 10.0. The baseline was positioned to conform to changes in the combined orientation of the shorelines alongshore. This was done so that transects cast from this baseline would intersect perpendicular to the general trend of the shorelines. Rates of shoreline change were generated in a GIS using the DSAS version 4.3 - An ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2008-1278, Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, Ayhan. Person who carried out this activity:
    Rachel E. Henderson (Hehre)
    U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
    600 4th Street South
    St. Petersburg, FL
    USA

    (727)-502-8000 (voice)
    rehenderson@usgs.gov
    Date: 01-Oct-2010 (process 2 of 4)
    The baseline feature class was exported from a personal geodatabase to a shapefile in ArcCatalog (v.10.0) by performing a right-mouse click on the data layer > export > to shapefile (single). Person who carried out this activity:
    Rachel E. Henderson (Hehre)
    U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
    600 4th Street South
    St. Petersburg, FL
    USA

    (727)-502-8000 (voice)
    rehenderson@usgs.gov
    Date: 30-Apr-2011 (process 3 of 4)
    Hatteras_Baseline.shp was projected in ArcToolbox from UTM zone 18N (NAD 83) to geographic (WGS 84) coordinates using ArcToolbox (v10.0) "Data Management Tools" > "Projections and Transformations" > "Feature" > "Project", and the Geographic Transformation: NAD_1983_To_WGS_1984_5. Person who carried out this activity:
    Rachel E. Henderson (Hehre)
    U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
    600 4th Street South
    St. Petersburg, FL
    USA

    (727)-502-8000 (voice)
    rehenderson@usgs.gov
    Date: 13-Oct-2020 (process 4 of 4)
    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?
    Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, A., 2009, Digital Shoreline Analysis System (DSAS) version 4.3 - An ArcGIS extension for calculating shoreline change: Open-File Report 2008-1278, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: Current version of software at time of use was 4.3

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

  1. How well have the observations been checked?
    The attribute in this layer is based on the requirements for use within the Digital Shoreline Analysis System (DSAS) software (USGS Open-File Report 2008-1278). The data have been quality checked and the attribute value (Id) increments sequentially alongshore.
  2. How accurate are the geographic locations?
    The baseline serves as a reference point for transects cast by the Digital Shoreline Analysis System (DSAS) software. It does not correspond to any real-world feature.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    This baseline file is complete and contains all baseline segments used to cast transects along sections of Hatteras Island, North Carolina from Oregon Inlet to Cape Point.
  5. How consistent are the relationships among the observations, including topology?
    Each polyline has a unique identification attribute (Id) used to designate the alongshore order of baselines. Adjacent baseline segments do not overlap and are not necessarily continuous.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_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 as the originator of the dataset.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
    600 4th Street South
    St. Petersburg, FL
    USA

    (727)-502-8000 (voice)
    rehenderson@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data: USGS Open-File Report 2015–1002
  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?
    • Availability in digital form:
      Data format: This WinZip file contains the baseline shapefile for use generating transects within the Digital Shoreline Analysis System for Cape Hatteras, NC from Oregon Inlet to Cape Hatteras Point. in format WinZip (version 15.5) ESRI polyline shapefile Size: .007
      Network links: http://pubs.usgs.gov/of/2015/1002
    • Cost to order the data: None

  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) polyline shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. 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: 13-Oct-2020
Metadata author:
Rachel E. Henderson (Hehre)
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida
600 4th Street South
St. Petersburg, FL
USA

(727)-502-8000 (voice)
rehenderson@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/OFR20151002_hatteras_baseline_metadata.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:18:51 2021