Connecticut Eelgrass Beds 2006 Field Data

Frequently-asked 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. Where did the data come from?
  2. What changes have been made?
• 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?
  6. Is there some other way to get the data?
  7. What hardware or software do I need in order to use the data set?
• Who wrote the metadata?

This dataset contains point data for eelgrass verification field work completed in 2006 by the US Fish & Wildlife Service.  Field work was conducted  during September, October and November of 2006.  The resulting information was used extensivley in the creation of the accompanyng polygonal eelgrass dataset.

1. How should this data set be cited?
   
   
   USFWS Region 5 , Unpublished Material, Connecticut Eelgrass Beds 2006 Field Data.
   
   
   Online links:

   • http://www.ct.gov/deep

   
   
2. What geographic area does the data set cover?
   
   
   Bounding coordinates:

   West: -72.483828

   East: -71.874582

   North: 41.379176

   South: 41.155980
   
   
3. What does it look like?
   
   
4. Does the data set describe conditions during a particular time period?
   
   
   Calendar date: September - November 2006
   Currentness reference:

   ground condition

   
   
5. What is the general form of this data set?
   
   
   Geospatial data presentation form: vector digital data
   
   
6. How does the data set represent geographic features?
   
   
   1. How are geographic features stored in the data set?
      
      
      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (290)
      
      
   2. What coordinate system is used to represent geographic features?
      
      
      The map projection used is Lambert Conformal Conic.

      
      

      Projection parameters:

      Lambert Conformal Conic

      Standard parallel: 41.200000

      Standard parallel: 41.866667

      Longitude of central meridian: -72.750000

      Latitude of projection origin: 40.833333

      False easting: 999999.999996

      False northing: 499999.999998

      
      

      Planar coordinates are encoded using coordinate pair.

      Abscissae (x-coordinates) are specified to the nearest 0.000250.

      Ordinates (y-coordinates) are specified to the nearest 0.000250.

      Planar coordinates are specified in survey feet.

      
      

      The horizontal datum used is North American Datum of 1983.

      The ellipsoid used is Geodetic Reference System 80.

      The semi-major axis of the ellipsoid used is 6378137.000000.

      The flattening of the ellipsoid used is 1/298.257222.

      
      Vertical coordinate system definition:

      Altitude system definition:

      Altitude resolution: 1.000000

      Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

      
      
7. How does the data set describe geographic features?
   
   
   Connecticut Eelgrass Beds 2006 Field Data

   OBJECTID

   Internal feature number. (Source: ESRI)
                     

   
   

   Sequential unique whole numbers that are automatically generated.

   
   

   Shape

   Feature geometry. (Source: ESRI)
                     

   
   

   Coordinates defining the features.

   
   

   LATITUDE

   LONGITUDE

   SITE_AREA

   Approximate location identified by land or waterbody name

   
   

   SITE_NAME

   Additional location identified by land or waterbody name

   
   

   DATE_FIELD

   Date of field work

   
   

   TIME_FIELD

   Time of day

   
   

   DEPTH_FT

   Depth to bottom

   
   

   EELGRASS

   Eelgrass presence

   
   

   COVER

   coverage type - High, Medium or Low

   
   

   COMMENTS

   comments by field crew

   
   

   TIDE_TIME

   High tide time of day

   
   

   TIDE_HEIGHT

   INVESTIGATE

   Feature geometry. (Source: ESRI)
                     

   
   

   Coordinates defining the features.

   
   

   SHAPE

   Feature geometry. (Source: ESRI)
                     

   
   

   Coordinates defining the features.

   
   

   SITE_ID

   Site ID number (not same as polygon site ID)

   
   

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   
   
   • USFWS Region 5
   
   
2. Who also contributed to the data set?
   
   
3. To whom should users address questions about the data?
   
   
   Andrew MacLachlan

   U.S. Fish & Wildlife Service

   GIS Specialist Region 5 Southern Coastal Zone

   FWS R5 ES Southern NE/NY Bight Coastal Est. Program

   Charlestown, Rhode Island

   
   

   401-364-9124 x13 (voice)

   andrew_Maclachlan@fws.gov

Used for verification of eelgrass beds in the 2006 Long Island Sound  study.

1. Where did the data come from?
   
   
2. What changes have been made?
   
   

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?
   
   

   complete

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

   Data points were taken with handheld GPS lat/long  position

   
   

none

Who distributes the data set?


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


Connecticut Eelgrass Beds 2006 Field Data


What legal disclaimers am I supposed to read?


How can I download or order the data?


• Availability in digital form:




Data format:	in format Shapefile, Feature Class (version ArcGIS)
Network links:	http://www.ct.gov/deep



Is there some other way to get the data?


What hardware or software do I need in order to use the data set?