SDETrims.DBO.Hydro_SubBasins

Metadata also available as

Frequently-anticipated questions:

What does this data set describe?

Title: SDETrims.DBO.Hydro_SubBasins
Abstract:
This shapefile represents the Hydrologic Unit Codes of Texas (River Basins). The original coverage was created by the USGS. The items in this shapefile have been modified by the Texas Water Development Board.
  1. How should this data set be cited?

    U.S. Geological Survey, Unknown, SDETrims.DBO.Hydro_SubBasins.

    Online Links:

    • Service=sde:sqlserver:CHUCKNORRIS; Database=SDETrims; Version=dbo.DEFAULT

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -106.645264
    East_Bounding_Coordinate: -93.507629
    North_Bounding_Coordinate: 36.501232
    South_Bounding_Coordinate: 25.836624

  3. What does it look like?

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

    Calendar_Date: unknown
    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 (211)

    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 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      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?

    SDETrims.DBO.Hydro_SubBasins

    ID

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    PERIMETER

    HUC

    HUC_MAJOR1

    BASIN_NAME

    REG

    SUBR

    ACCT

    CAT

    STATE

    STATE_NAME

    STATE_1

    NAME

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    SDETrims.DBO.Hydro_SubBasins.AREA

    Shape.area

    Shape.len

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Mark Hayes
    Texas Water Development Board
    Mapping Support Services Coordinator
    1700 North Congress Avenue
    P.O. Box 13231
    Austin, Texas 78711-3231
    USA

    (512) 936-0828 (voice)
    (5120 936-0812 (FAX)
    mhayes@twdb.state.tx.us

    Hours_of_Service: Monday-Friday 7:00-4:00

Why was the data set created?

This shapefile is for use by the Texas Water Development Board.

How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    (process 1 of 7)
    Dataset copied.

    Data sources used in this process:

    • L:\Documented Data\500k\tx_huc

    (process 2 of 7)
    Dataset moved.

    Data sources used in this process:

    • L:\Recommended GIS data\State and Regional Mapping Data\Surface Water\tx_huc

    (process 3 of 7)
    Metadata imported.

    Data sources used in this process:

    • L:\Recommended GIS data\State and Regional Mapping Data\Surface Water\River Basins and Sub-Basins\tx_huc8.shp.xml

    (process 4 of 7)
    Dataset moved.

    Data sources used in this process:

    • L:\Recommended GIS data\State and Regional Mapping Data\Surface Water\Rivers\namedhuc8

    (process 5 of 7)
    Dataset copied.

    Data sources used in this process:

    (process 6 of 7)
    Dataset copied.

    Data sources used in this process:

    (process 7 of 7)
    Dataset copied.

    Data sources used in this process:

  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 observations, including topology?

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 contact information not provided.]

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

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 20-Aug-2007
Metadata author:
Texas Water Development Board
c/o Christy-Ann Archuleta
GIS Specialist
1700 North Congress Avenue
P.O. Box 13231
Austin, Texas 78711-3231
USA

(512) 936-8002 (voice)
(512) 936-2128 (FAX)
christy-ann.archuleta@twdb.state.tx.us

Hours_of_Service: Monday-Friday 8:00-5:00
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.6 on Mon Aug 20 13:59:16 2007