Sediment Sample Locations Collected in March/April 2014 and October 2014 from Chincoteague Bay, Virginia and Maryland (U.S. Geological Survey Field Activity Numbers 14CTB01, and 14CTB22)

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Frequently anticipated questions:


What does this data set describe?

Title:
Sediment Sample Locations Collected in March/April 2014 and October 2014 from Chincoteague Bay, Virginia and Maryland (U.S. Geological Survey Field Activity Numbers 14CTB01, and 14CTB22)
Abstract:
Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center conducted a seasonal collection of surficial sediments from Chincoteague Bay and Tom's Cove, located between Assateague Island and the Delmarva Peninsula in March/April 2014 (2014-301-FA) and October 2014 (2014-322-FA). The sampling efforts were part of a larger U.S. Geological Survey study to assess the effects of storm events on sediment distribution. The objective of this study was to characterize the sediments of Chincoteague Bay in order to create baseline conditions to incorporate with hydrodynamic and sediment transport models in order to evaluate pre- and post-storm (Hurricane Sandy) change. This report serves as an archive for sedimentological data derived from the surface sediment. Data are available for a seasonal comparison between March/April 2014 and October 2014. Downloadable data are available as Excel spreadsheets (sediment samples) and as JPEG files (maps). Additional files include: detailed results of sediment grain size analyses, and formal Federal Geographic Data Committee metadata (data downloads).
Supplemental_Information: None
  1. How might this data set be cited?
    Ellis, Alisha M., Marot, Marci E., Wheaton, Cathryn J., Bernier, Julie C., and Smith, Christopher G., 20151205, Sediment Sample Locations Collected in March/April 2014 and October 2014 from Chincoteague Bay, Virginia and Maryland (U.S. Geological Survey Field Activity Numbers 14CTB01, and 14CTB22):.

    Online Links:

    This is part of the following larger work.

    Ellis, Alisha M., Marot, Marci E., Wheaton, Cathryn J., Bernier, Julie C., and Smith, Christopher G., 20151205, A seasonal comparison of surface sediment characteristics in Chincoteague Bay, Maryland and Virginia, USA: U.S. Geological Survey Open-File Report 2015-1219, U.S. Geological Survey, St. Petersburg, FL.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -75.46667
    East_Bounding_Coordinate: -75.11111
    North_Bounding_Coordinate: 38.26667
    South_Bounding_Coordinate: 37.82222
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 26-Mar-2014
    Ending_Date: 30-Oct-2014
    Currentness_Reference:
    Ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Tabular digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
    2. What coordinate system is used to represent geographic features?
  7. How does the data set describe geographic features?
    14CTB_Spring and Fall_Site Information.xlsx.zip
    Microsoft Excel workbook defining the location and water quality parameters at each sediment sample site collected from March/April 2014 and October 2014 from Chincoteague Bay, Virginia and Maryland (U.S. Geological Survey Field Activity Number 14CTB01 and 14CTB22). (Source: USGS)
    Sample ID
    Sample identification number (Source: USGS) Character string. Sample IDs listed within the table used the naming convention ##CTB-^^G. Where “##” is the two digit representation of the data collection year (14 for 2014), “^^” is the site location number, and “G” are lagoonal PONAR grab sites).
    Sampling Date
    Date sample was collected (Source: USGS)
    Range of values
    Minimum:04/01/2014
    Maximum:10/30/2014
    Units:mm/dd/yyyy
    Resolution:1 day
    Latitude
    Latitude of sample location in decimal degrees (NAD83) (Source: USGS)
    Range of values
    Minimum:37.87006
    Maximum:38.24602
    Units:decimal degrees
    Resolution:0.00001
    Longitude
    Longitude of sample location in decimal degrees (NAD83) (Source: USGS)
    Range of values
    Minimum:-75.18492
    Maximum:-75.41255
    Units:decimal degrees
    Resolution:0.00001
    Water Depth (m)
    Water depth of sample location in meters (Source: USGS)
    Range of values
    Minimum:0.4
    Maximum:6.3
    Units:Meters
    Resolution:0.1
    Temperature (°C)
    Water temperature in degrees Celsius at each sample location (Source: USGS)
    Range of values
    Minimum:8.4
    Maximum:18.3
    Units:degrees Celsius
    Resolution:0.1
    Barometric Pressure (mmHg)
    Barometric pressure at each sample location (Source: USGS)
    Range of values
    Minimum:758.6
    Maximum:767.7
    Units:millimeters of mercury
    Resolution:0.1
    Dissolved Oxygen (%)
    Percent dissolved oxygen at each sample location (Source: USGS)
    Range of values
    Minimum:1.1
    Maximum:172.3
    Units:percent
    Resolution:0.1
    Dissolved Oxygen (mg/L)
    Dissolved oxygen at each sample site expressed in milligrams per liter (Source: USGS)
    Range of values
    Minimum:0.1
    Maximum:14.0
    Units:milligrams per liter
    Resolution:0.1
    Specific Conductance (mS/cm)
    Specific conductance in millisiemens per centimeter at each sample location (Source: USGS)
    Range of values
    Minimum:31.96
    Maximum:49.63
    Units:millisiemens per centimeter
    Resolution:0.01
    Salinity
    Salinity at each sample location (Source: USGS)
    Range of values
    Minimum:19.07
    Maximum:32.48
    Units:decimal degrees
    Resolution:0.01
    pH
    pH at each sample location (Source: USGS)
    Range of values
    Minimum:6.36
    Maximum:8.70
    Units:hydrogen ion concentration
    Resolution:0.01
    pH (mV)
    pH at each sample location in millivolts (Source: USGS)
    Range of values
    Minimum:-92.7
    Maximum:-71.3
    Units:decimal degrees
    Resolution:0.1
    ORP (mV)
    Oxidation-reduction potential at each sample location in millivolts (Source: USGS)
    Range of values
    Minimum:44.3
    Maximum:151.6
    Units:millivolts
    Resolution:0.1

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Alisha M. Ellis
    • Marci E. Marot
    • Cathryn J. Wheaton
    • Julie C. Bernier
    • Christopher G. Smith
  2. Who also contributed to the data set?
    U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center
  3. To whom should users address questions about the data?
    U.S. Geological Survey
    Attn: Alisha M. Ellis
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8056 (voice)
    aellis@usgs.gov

Why was the data set created?

The file 14CTB_Spring and Fall_Site Information.xlsx.zip includes all site information and water quality parameters collected from each lagoonal surface sediments sample site collected in Chincoteague Bay in Spring March 26 – April 4, 2014 (14CTB01) and fall October 21 – 30, 2014 (14CTB02) by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center.

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: 2014 (process 1 of 1)
    Water quality parameters including salinity, pH, temperature, dissolved oxygen (DO), specific conductance, and oxidation-reduction potential (ORP), were collected at each site using a YSI Professional Plus multi-sensor meter at a depth of 1 m below the water surface. Water depth was also recorded at all sample locations at the time of collection by either a Garmin depth sounder or direct measurement. Site coordinates were recorded on a Garmin GSPmap 76S handheld Global Positioning System (GPS) receiver. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Alisha M. Ellis
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8056 (voice)
    aellis@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?
    The positional accuracy of the sample locations was determined by the accuracy of the raw position data recorded by the handheld Garmin GSPmap 76S handheld Global Positioning System (GPS) receiver, which is accurate to within 3 meters,used to locate the sample sites during time of collection.
  2. How accurate are the geographic locations?
    Sample locations were recorded at the time of collection using a Garmin GPSmap 76S handheld Global Positioning System (GPS) receiver.
  3. How accurate are the heights or depths?
    Surface elevations of the sediment samples were interpolated from USGS lidar data collected in February 2012.
  4. Where are the gaps in the data? What is missing?
    This dataset includes 99 [Ponar] surface grab samples collected in Chincoteague Bay and Tom's Cove in March, April and October of 2014.
  5. How consistent are the relationships among the observations, including topology?
    Sample locations were recorded at the time of collection using a Garmin 76S handheld Global Positioning System (GPS) receiver.

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:
The U.S. Geological Survey requests that it be acknowledged as the originator of this dataset in any future products or research derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey
    Attn: Alisha M. Ellis
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8056 (voice)
    aellis@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?
    Although these data have been processed successfully on a computer system at the U.S. Geological Survey, 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 imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Any use of trade, firm, or product name 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 workbook was created using Microsoft Excel 2011 and can be opened using Microsoft Excel 2007 or higher; these data may also be viewed using the free Microsoft Excel Viewer (http://www.microsoft.com/).

Who wrote the metadata?

Dates:
Last modified: 08-Jun-2016
Metadata author:
U.S. Geological Survey
Attn: Alisha M. Ellis
Geologist
600 4th Street South
St. Petersburg, FL
USA

(727) 502-8056 (voice)
aellis@usgs.gov
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/OFR20151219_Site_Information-met.faq.html>
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