Mapbook Regional Basin Index

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?

A 1:24,000-scale polygon feature-based layer of Regional Drainage Basins. The regional basin datalayer extends beyond the Connecticut boundary to include the headwaters of every regional basin that flows into the state, except for the Connecticut River basin. These data are for making a Regional Basin-based Mapbook Series. Mapbook is a developer's sample created by ESRI. It is an addition for ArcMap that allows the layout created in an ArcMap document to be used repeatedly to generate a series of similar maps. The extent of each map is controlled by the polygon features of the datalayer designated as an index. Attributes of the index are tagged to and used to change text on each map in the series.

1. How should this data set be cited?
   
   
   State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher), 20080625, Mapbook Regional Basin Index.
   
   
   Online links:

   • http://www.ct.gov/deep

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

   West: -73.760405

   East: -71.465712

   North: 42.603944

   South: 40.936173
   
   
3. What does it look like?
   
   
4. Does the data set describe conditions during a particular time period?
   
   
   Calendar date: 20080625
   Currentness reference:

   publication date

   
   
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):

      • G-polygon (44)
      
      
   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?
   
   
   Mapbook Regional Basin Index

   Regional drainage basin boundaries for use as an index. (Source: State of Connecticut, Department of Environmental Protection)

   
   

   RBAS_NO

   Regional basin number. (Source: State of Connecticut, Department of Environmental Protection)
                     

   
   

   SHAPE

   Feature geometry. (Source: ESRI)
                     

   
   

   Coordinates defining the features.

   
   

   OBJECTID

   Internal feature number. (Source: ESRI)
                     

   
   

   Sequential unique whole numbers that are automatically generated.

   
   

   REGIONAL_NO_INDEX

   Regional basin number stored as text for use as an index. (Source: State of Connecticut, Department of Environmental Protection)
                     

   
   

   REGIONAL_INDEX

   Regional basin name for use as an index. (Source: State of Connecticut, Department of Environmental Protection)
                     

   
   

   REGIONAL_LC

   Regional basin name in lower case. (Source: State of Connecticut, Department of Environmental Protection)
                     

   
   

   REGIONAL_UC

   Regional basin name in upper case. (Source: State of Connecticut, Department of Environmental Protection)
                     

   
   

   SHAPE.area

   SHAPE.len

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   
   
   • State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
   
   
2. Who also contributed to the data set?
   
   
3. To whom should users address questions about the data?
   
   
   State of Connecticut, Department of Environmental Protection

   79 Elm Street

   Hartford, Connecticut 06106-5127

   USA

   
   

   860-424-3540 (voice)

   860-424-4058 (FAX)

   dep.gisdata@ct.gov

   Hours of Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time

These data are suitable for making a Mapbook Series using Regional Basin as a spatial index. Not intended for use in a conventional GIS mapping or spatial analysis application.

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

1. How well have the observations been checked?
   
   

   All attributes have valid values. Values are within defined domains. The Regional basin number and Regional basin name polygon attributes were manually entered based information depicted on a map of the state of Connecticut.

   
   
2. How accurate are the geographic locations?
   
   

   The horizontal positional accuracy of this data is unknown.

   
   
3. How accurate are the heights or depths?
   
   
4. Where are the gaps in the data? What is missing?
   
   

   The completeness of the data is not known. This data is not updated.

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

   Polygon features conform to the following topological rules. Polygons are single part. There are no duplicate polygons. Polygons do not self overlap. Polygons do not overlap other polygons. No tests of logical consistency were performed by the State of Connecticut.

   
   

None. No restrictions or legal prerequisites for using the data after access is granted. These data are only suitable for use in creating a spatial index for a Mapbook Series based on Regional Basins. Not intended for use in a conventional GIS mapping or spatial analysis application. Although this data set has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials.  The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data.

Who distributes the data set?


State of Connecticut, Department of Enviromental Protection
79 Elm Street
Hartford, Connecticut 06106-5127
USA


860-424-3540 (voice)
860-424-4058 (FAX)
dep.gisdata@ct.gov
Hours of Service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time


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


Mapbook Regional Basin Index


What legal disclaimers am I supposed to read?


Although this data set  has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials.  The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata.


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



• Cost to order the data: An online copy of the data may be accessed without charge.



Is there some other way to get the data?


The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.


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


Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.

79 Elm Street