Thermokarst lake water temperature and salinity data collected in 2011 in the vicinity of Arey Lagoon and Barter Island, Alaska

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

Frequently anticipated questions:

What does this data set describe?

Title:
Thermokarst lake water temperature and salinity data collected in 2011 in the vicinity of Arey Lagoon and Barter Island, Alaska
Abstract:
Thermokarst lake water temperature and salinity data were collected in 2011 in the vicinity of Arey Lagoon and Barter Island, Alaska. Pond temperatures and salinity (conductivity) were measured along two transects traversing across a wet sedge area. A hand-held YSI 556 MPS (plus or minus 0.5 percent accuracy) with a cable-attached instrument probe was placed in 10-15 cm of water within 1 m of each of the pond edges and allowed to equilibrate, and readings were recorded manually. In all, 35 ponds were sampled over a distance of approximately 1.5 km.
Supplemental_Information:
Additional information about the field activity from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=ID411AR 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, Thermokarst lake water temperature and salinity data collected in 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: -143.715250
    East_Bounding_Coordinate: -143.692120
    North_Bounding_Coordinate: 70.104650
    South_Bounding_Coordinate: 70.098760
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/5ee2b52582ce3bd58d7e1720?name=BTI_2011ThermokarstTempSalinity_SampleLocationMap.jpg&allowOpen=true (JPEG)
    Map of thermokarst lake temperature and salinity measurement locations.
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 12-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 (39)
    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.
  7. How does the data set describe geographic features?
    BTI_2011ThermokarstTempSalinity_data.csv
    Temperature and salinity measurements in thermokarst lakes (Source: Producer defined)
    Longitude
    Longitude coordinate (Source: Producer defined)
    Range of values
    Minimum:-143.71525
    Maximum:-143.69212
    Units:Decimal degrees
    Resolution:0.00001
    Latitude
    Latitude coordinate (Source: Producer defined)
    Range of values
    Minimum:70.09876
    Maximum:70.10465
    Units:Decimal degrees
    Resolution:0.00001
    Temp_degC
    Temperature (Source: Producer defined)
    Range of values
    Minimum:8.3
    Maximum:16.6
    Units:Degree C
    Resolution:0.1
    Cond_mS/cm
    Conductivity (Source: Producer defined)
    Range of values
    Minimum:2.35
    Maximum:46.68
    Units:mS/cm
    Resolution:0.01
    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 2)
    Thermokarst lake water temperature and salinity data were collected in 2011 in the vicinity of Arey Lagoon and Barter Island, Alaska. Pond temperatures and salinity (conductivity) were measured along two transects traversing across a wet sedge area. A hand-held YSI 556 MPS (plus or minus 0.5 percent accuracy) with a cable-attached instrument probe was placed in 10-15 cm of water within 1 m of each of the pond edges and allowed to equilibrate, and readings were recorded manually. In all, 35 ponds were sampled over a distance of approximately 1.5 km.
    Date: 13-Oct-2021 (process 2 of 2)
    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. Instruments used to measure salinity, and temperature. Accuracies of pond temperatures and salinity (conductivity) are approximately ±0.5 percent of measurements, per manufacturer (YSI) specifications.
  2. How accurate are the geographic locations?
    A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. Temperature and salinity sample locations were obtained with hand-held GPS units and are estimated to be accurate to within 4 meters.
  3. How accurate are the heights or depths?
  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 and a sample location map.
  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_2011ThermokarstTempSalinity_metatata.faq.html>
Generated by mp version 2.9.50 on Thu Oct 14 14:47:22 2021