Summary of sample locations and mercury concentrations in samples from Long Island Sound

Frequently anticipated questions:

• What does this data set describe?
  1. How might this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  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?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How might this data set be cited?
   Varekamp, Johan C., Mecray, Ellen L., Marilyn R. Buchholtz ten Brink, and Kreulen, B., 2000, Summary of sample locations and mercury concentrations in samples from Long Island Sound: Open-File Report 2000-304, U.S. Geological Survey, Woods Hole Field Center, Woods Hole, MA.

   Online Links:

   • https://doi.org/10.3133/ofr00304
   • https://pubs.usgs.gov/of/2000/of00-304/htmldocs/chap07/index.htm

   Other_Citation_Details:

   Johan C. Varekamp, Ellen L. Mecray, Marilyn R. Buchholtz ten Brink, and B. Kreulen were the compilers of this individual dataset based on authorship of the associated chapter 7 in this report.

   This is part of the following larger work.
   Paskevich, Valerie, and Poppe, Larry, 2000, Georeferenced Sea-Floor Mapping and Bottom Photography in Long Island Sound: U. S. Geological Survey Open-File Report OFR 00-304, U. S. Geological Survey, Woods Hole Field Center, Woods Hole, MA.

   Online Links:

   • https://doi.org/10.3133/ofr00304
   • https://pubs.usgs.gov/of/2000/of00-304/

   Other_Citation_Details:

   Valerie F. Paskevich and Lawrenc J. Poppe are the editors of the publication which contains 12 individual chapters with various authors.

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -73.54944
   East_Bounding_Coordinate: -72.21429
   North_Bounding_Coordinate: 41.26958
   South_Bounding_Coordinate: 40.93784
   

3. What does it look like?
4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1996

   Currentness_Reference:

   assumed sample collection year based on data

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?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (182)
   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 0.0001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in decimal degrees. The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is GRS80.
      The semi-major axis of the ellipsoid used is 6378137.00.
      The flattening of the ellipsoid used is 1/298.257222101.
      
7. How does the data set describe geographic features?

   Entity_and_Attribute_Overview:

   The dataset contains 6 columns of information. The data are from two field activities (SEAX96017 and SEAX96024) which is the first row of each section of the data. The columns of information are as follows: sample; longitude; latitude; MGS (phi); Fe (%); Hg (ppb). Any additional information with regards to these data the user will need to acquire from the associated Chapter 7 in the Larger Work citation (https://pubs.usgs.gov/of/2000/of00-304/htmldocs/chap07/index.htm)

   Entity_and_Attribute_Detail_Citation:

   Work to create the CSDGM metadata file performed by VeeAnn A. Cross.

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Johan C. Varekamp
   • Ellen L. Mecray
   • Marilyn R. Buchholtz ten Brink
   • B. Kreulen
2. Who also contributed to the data set?
3. To whom should users address questions about the data?
   Department of Earth and Environmental Sciences, Wesleyan University

   Attn: Johan C. Varekamp

   45 Wyllys Avenue

   Middletown, CT
   

   860-685-2000 (voice)

   Contact_Instructions:

   Johan C. Varekamp is assumed to be the contact of this dataset since he is the first author on the associated Chapter 7 in the publication.

Why was the data set created?

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: 26-Jun-2023 (process 1 of 1)

   The dataset was released in the publication without a CSDGM metadata file. In order to provide a metadata file discoverable by various systems, the skeleton metadata file was generated based on information in the publication and the dataset itself. Dataset originator names are assumed based on the associated chapter authorship. Links to access the data including the DOI link were included. Added keywords section with USGS persistent identifier as theme keyword (PID). The spatial reference information is an assumption based on the header information in the file with the datum being assumed to be consistent with the other datasets included in the Larger Work citation. The distribution contact and metadata contact reflects the person who generated the CSDGM metadata file. 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. (20230626) Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: VeeAnn A. Cross

   Marine Geologist

   384 Woods Hole Rd.

   Woods Hole, MA
   

   USA

   (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?
   Unavailable from the original dataset. The user will need to read Chapter 7 from the Larger Work citation to learn more information.
2. How accurate are the geographic locations?
   Unavailable from the original dataset. The user will need to read Chapter 7 from the Larger Work citation to learn more information.
3. How accurate are the heights or depths?
   
4. Where are the gaps in the data? What is missing?
   Unavailable from the original dataset. The user will need to read Chapter 7 from the Larger Work citation to learn more information.
5. How consistent are the relationships among the observations, including topology?
   Unavailable from the original dataset. The user will need to read Chapter 7 from the Larger Work citation to learn more information.

How can someone get a copy of the data set?

1. Who distributes the data set? (Distributor 1 of 1)
   
   U.S. Geological Survey

   Attn: VeeAnn A. Cross

   Marine Geologist

   384 Woods Hole Rd.

   Woods Hole, MA
   

   USA

   (508) 548-8700 x2251 (voice)

   (508) 457-2310 (FAX)

   vatnipp@usgs.gov
2. What's the catalog number I need to order this data set? Long Island Sound: lisgrabs.shp
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 for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.
4. How can I download or order the data?
   • Availability in digital form:

     Data format:	XLS spreadhseet contained the columns of data. in format XLS Size: 1
     Network links:	https://pubs.usgs.gov/of/2000/of00-304/lisound/data/chap07/c7tab1.xls https://pubs.usgs.gov/of/2000/of00-304/htmldocs/data.htm#chap07 https://doi.org/10.3133/ofr00304
     Media you can order:	CD-ROM (Density 650 Mbytes) (format ISO 9600) Note: The user must have a system with a CD-ROM capable of reading an ISO-9660 standard CD-ROM disk. To browse the information contained on this disk, the user must also have a current version of WWW browser available.

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 26-Jun-2023

Metadata author:

U.S. Geological Survey

Attn: VeeAnn A. Cross

Marine Geologist

384 Woods Hole Rd.

Woods Hole, MA

USA

(508) 548-8700 x2251 (voice)

(508) 457-2310 (FAX)

whsc_data_contact@usgs.gov

Contact_Instructions:

The metadata contact email address is a generic address in the event the person is no longer with the USGS.

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)