Location of grab samples collected from Tomales Bay, California

Frequently-anticipated questions:

• What does this data set describe?
  1. How should 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 should this data set be cited?

   Anima, Roberto J. , Chin, John L. , Finlayson, David P. , McGann, Mary L. , and Wong, Florence L. , 2007, Location of grab samples collected from Tomales Bay, California: USGS Open-File Report USGS OFR 2007-xxxx, U.S. Geological Survey, Menlo Park, California.

   Online Links:

   • <URL:https://pubs.usgs.gov/of/2008/1237/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -122.9802

   East_Bounding_Coordinate: -122.87254

   North_Bounding_Coordinate: 38.23215

   South_Bounding_Coordinate: 38.12838

3. What does it look like?

   <https://pubs.usgs.gov/of/2008/1237/images/f105tbspl.gif> (gif or jpg)

   preview image of report

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 2005

   Currentness_Reference: Ground Condition

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: map

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 (27)

   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 0.000010766. Longitudes are given to the nearest 0.000010766. 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 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
      

7. How does the data set describe geographic features?

   Entity_and_Attribute_Overview:

   Point attributes
   
        DATE       sample date
        LATITUDE   decimal degrees, WGS84
        LONGITUDE  deicmal degrees, WGS84
        ACTIVITYID activity code F-1-05-TB
        EQUIPMENTTYPE grab
        DEPTH    depth in meters
        DEPTHUNITS meters
        SAMPLEID   field sample number
        COMMENTS   field notes
   

   Entity_and_Attribute_Detail_Citation: none

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Roberto J. Anima
   • John L. Chin
   • David P. Finlayson
   • Mary L. McGann
   • Florence L. Wong

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   Florence L. Wong
   United States Geological Survey (USGS)
   Geologist, GIS Coordinator
   USGS, MailStop 999, 345 Middlefield Road
   Menlo Park, CA 94025-3561
   USA
   

   (650) 329-5327 (voice)
   (650) 329-5190 (FAX)
   fwong@usgs.gov
   

Why was the data set created?

These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.

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: 2006 (process 1 of 2)

   Samples analyzed for grain size and foraminfera distribution reported elsewhere in this report.

   Date: 19-Sep-2007 (process 2 of 2)

   First draft of metadata created by florence using FGDCMETA.AML ver. 1.35 08/02/2000 on ArcInfo data set /we6/florence/cordell/tomales/covs/f105tbspl

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?

   Navigated by hand-held GPS unit.

2. How accurate are the geographic locations?

   None

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   Complete.

5. How consistent are the relationships among the observations, including topology?

   Point features present.

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:

None

1. Who distributes the data set? (Distributor 1 of 1)
   United States Geological Survey (USGS)
   c/o Florence L. Wong
   Geologist, GIS Coordinator
   USGS, MailStop 999, 345 Middlefield Road
   Menlo Park, CA 94025-3561
   USA
   

   (650) 329-5327 (voice)
   (650) 329-5190 (FAX)
   fwong@usgs.gov
   

2. What's the catalog number I need to order this data set?

   USGS OFR 04-xxx

3. What legal disclaimers am I supposed to read?

   Please recognize the U.S. Geological Survey (USGS) as the source of this information.

   Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.

   The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	text file Size: 5 KB
     Network links:	<http://walrus.wr.usgs.gov/infobank/f/f105tb/samp/f-1-05-tb.onoff.grabs.grab>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 19-Sep-2007
Last Reviewed: Oct-2007

Metadata author:

United States Geological Survey (USGS)
c/o Florence L. Wong
Geologist, GIS Coordinator
USGS, MailStop 999, 345 Middlefield Road
Menlo Park, CA 94025-3561
USA

(650) 329-5327 (voice)
(650) 329-5190 (FAX)
fwong@usgs.gov

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata ("CSDGM version 2") (FGDC-STD-001-1998)