Beach profile data collected in 2010 and 2011 in the vicinity of Arey Lagoon and Barter Island, Alaska

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Frequently anticipated questions:

What does this data set describe?

Title:
Beach profile data collected in 2010 and 2011 in the vicinity of Arey Lagoon and Barter Island, Alaska
Abstract:
Beach elevation profiles were measured along 29 shore-normal transects on and around Arey and Barter Islands, Alaska in August 2010 and July 2011. Profile data are available in a single comma-delimited file and a zip file including multiple .jpg images that show a visual representation of the individual profiles.
Supplemental_Information:
Additional information about the field activities from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=ID411AR https://cmgds.marine.usgs.gov/fan_info.php?fan=L610AK Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  1. How might this data set be cited?
    Erikson, Li H., Gibbs, Ann E., Richmond, Bruce M., Jones, Benjamin M., Storlazzi, Curt D., and Ohman, Karin A., 20201207, Beach profile data collected in 2010 and 2011 in the vicinity of Arey Lagoon and Barter Island, Alaska: data release DOI:10.5066/P9LGYO2Q, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Erikson, Li H., Gibbs, Ann E., Richmond, Bruce M., Jones, Benjamin M., Storlazzi, Curt D., and Ohman, Karin A., 2020, Modeled 21st century storm surge, waves, and coastal flood hazards, and supporting oceanographic and geological field data (2010 and 2011) for Arey and Barter Islands, Alaska and vicinity: data release DOI:10.5066/P9LGYO2Q, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -144.010150
    East_Bounding_Coordinate: -143.624810
    North_Bounding_Coordinate: 70.134200
    South_Bounding_Coordinate: 70.086590
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/5ee2b4b082ce3bd58d7e171c?name=BTI_20102011BeachProfile_LocationMap.jpg&allowOpen=true (JPEG)
    Map of sediment samples, mean grain size distribution, and beach profile locations.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 27-Aug-2010
    Ending_Date: 11-Jul-2011
    Currentness_Reference:
    ground condition at time data were collected
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: comma-delimited text
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (9135)
    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 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is WGS84.
      The ellipsoid used is WGS84.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257223563.
      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: WGS84
      Altitude_Resolution: 0.01
      Altitude_Distance_Units: meters
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates
  7. How does the data set describe geographic features?
    BTI_20102011BeachProfiles_Data.csv
    Beach profile measurements (Source: Producer defined)
    TransectID
    Beach profile transect identification (Source: Producer defined) Unique identifier for the beach profile given in the field
    Longitude
    Longitude coordinate (Source: Producer defined)
    Range of values
    Minimum:-144.010151
    Maximum:-143.624812
    Units:Decimal degrees
    Resolution:0.000001
    Latitude
    Latitude coordinate (Source: Producer defined)
    Range of values
    Minimum:70.086591
    Maximum:70.134202
    Units:Decimal degrees
    Resolution:0.000001
    Northing
    Northing coordinate (Source: Producer defined)
    Range of values
    Minimum:7778345.32
    Maximum:7783060.91
    Units:Meters
    Resolution:0.01
    Easting
    Easting coordinate (Source: Producer defined)
    Range of values
    Minimum:385637.02
    Maximum:400475.74
    Units:Meters
    Resolution:0.01
    AcquireDate
    Acquisition date (Source: Producer defined)
    Range of values
    Minimum:08/27/2010
    Maximum:07/11/2011
    CumlDist_m
    Cumulative distance from start of profile (Source: Producer defined)
    Range of values
    Minimum:0
    Maximum:860.31
    Units:Meters
    Resolution:0.01
    Ht_Ell
    Height relative to WGS84 ellipsoid (Source: Producer defined)
    Range of values
    Minimum:-3.82
    Maximum:10.08
    Units:Meters
    Resolution:0.01
    Ht_MSL
    Height relative to approximate mean sea level (Source: Producer defined)
    Range of values
    Minimum:-1.52
    Maximum:12.38
    Units:Meters
    Resolution:0.01
    Site
    General location of beach profile (Source: Producer defined)
    ValueDefinition
    Central Barter IslandExposed coast fronting Barter Island bluffs
    Arey IslandMain Arey Island
    East Arey IslandEastern portion of Arey Island
    Barter Island - western spitBarrier spit on the west side of Barter Island
    Entity_and_Attribute_Overview: The first line of the csv file is a header line.
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Li H. Erikson
    • Ann E. Gibbs
    • Bruce M. Richmond
    • Benjamin M. Jones
    • Curt D. Storlazzi
    • Karin A. Ohman
  2. Who also contributed to the data set?
    Arctic Landscape Conservation Cooperative (ALCC), U.S. Fish & Wildlife Service
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA

    831-427-4747 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

Data were obtained to provide inputs and validation data for a numerical model, and additionally to provide baseline environmental data previously not available.

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: 20-Oct-2011 (process 1 of 3)
    Beach elevation profiles were measured along 29 shore-normal transects on and around Arey and Barter Islands, Alaska in August 2010 and July 2011. Profiles were collected at 14 locations in 2010 and 15 locations in 2011. No data were collected at an AR-12 site. Position information were obtained with two Ashtech ZXtreme roving global positioning system (GPS) units in a backpack configuration. A base station using a third ZXtreme was established on Barter Island for the duration of the field campaigns. Rover data were collected to within 0.20 m accuracy using post-processed measurements from the base station.
    Date: 20-Oct-2011 (process 2 of 3)
    Cumulative distance along the profile transect was calculated from the Easting and Northing coordinates. Approximate mean sea level (Ht_MSL) elevations were calculated by adding an empirically determined 2.3 m to the height above ellipsoid (Ht_Ell) values. Cumulative distance along the profile transect was plotted against Ht_MSL elevations in Microsoft Excel. Profiles exported from Excel were imported into and edited in Adobe Illustrator to identify coincident sediment sample locations and morphological features, for example Berm Crest (BC), Water Line (WL), Lagoon Shoreline (LS). Files were exported to final jpeg format using the naming convention TransecID.jpg.
    Date: 13-Oct-2021 (process 3 of 3)
    Performed minor edits to the metadata to correct typos. No data were changed Person who carried out this activity:
    U.S. Geological Survey
    Attn: Susan A. Cochran
    Geologist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7545 (voice)
    scochran@usgs.gov
  3. What similar or related data should the user be aware of?
    Erikson, Li H., Gibbs, Ann E., Richmond, Bruce M., Storlazzi, Curt D., Jones, Benjamin M., and Ohman, Karin A., 2020, Changing Storm Conditions in Response to Projected 21st Century Climate Change Scenarios and the Potential Impact on an Arctic Barrier Island Lagoon System: A Pilot Study for Arey Island and Lagoon, Eastern Arctic Alaska.

    Online Links:

    Other_Citation_Details:
    Erikson, L.H., Gibbs, A.E., Richmond, B.M., Storlazzi, C.D., Jones, B.M., and Ohman, K.A., 2020, Changing storm conditions in response to projected 21st century climate change and the potential impact on an arctic barrier island–lagoon system—A pilot study for Arey Island and Lagoon, eastern Arctic Alaska: U.S. Geological Survey Open-File report 2020-1142

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

  1. How well have the observations been checked?
    No formal accuracy assessment was performed. Standard operating procedures were used to collect all data and measurements are within the expected range
  2. How accurate are the geographic locations?
    A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. Point locations along the beach profiles were logged with an Ashtech ZXtreme roving global positioning system (GPS) and post-processed using data collected with a ZXtreme base station on Barter Island. Horizontal accuracy is estimated to be 20 cm.
  3. How accurate are the heights or depths?
    A formal accuracy assessment of the vertical positional information in the data set has not been conducted. Point locations along the beach profiles were logged with an Ashtech ZXtreme roving global positioning system (GPS) and post-processed using data collected with a ZXtreme base station on Barter Island. Vertical accuracy is estimated to be 20 cm.
  4. Where are the gaps in the data? What is missing?
    Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    No formal logical accuracy tests were conducted. Data has been checked for duplications and omissions. Missing data have been filled with NaN values. Where data were not collected a value of n/a value is used.

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:
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? These data are available in csv format contained in a single zip file which also includes CSDGM FGDC compliant metadata, a sample location map, and a zip file including jpeg images showing a visual representation of the 29 profiles.
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
  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 can be viewed with any text reading software.

Who wrote the metadata?

Dates:
Last modified: 13-Oct-2021
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA

831-427-4747 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P9LGYO2Q/BTI_20102011BeachProfiles_metatata.faq.html>
Generated by mp version 2.9.50 on Thu Oct 14 14:47:22 2021