GISDATA.nhd_region_rch

Frequently-asked questions:

What does this data set describe?
Title:
GISDATA.nhd_region_rch

Abstract:
REQUIRED: A brief narrative summary of the data set.

  1. How should this data set be cited?

    REQUIRED: The name of an organization or individual that developed the data set., REQUIRED: The date when the data set is published or otherwise made available for release., GISDATA.nhd_region_rch.

    Online links:

  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: -92.451923
    East: -74.039135
    North: 41.130932
    South: 24.521424

  3. What does it look like?

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

    Calendar date: REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
    Currentness reference:
    REQUIRED: The basis on which the time period of content information is determined.

  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 (87132)
      • Label point (0)
      • GT-polygon composed of chains (314944)
      • Node, planar graph (939433)
      • Point (1640)
      • Composite object (798811)
      • Composite object (2317)
      • Composite object (634962)
      • Composite object (2477)
      • Composite object (87132)
      • Composite object (125895)

    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 D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.

      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?

    GISDATA.nhd_region_rch
    OBJECTID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    GISDATA.nhd_region_rch.AREA
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    PERIMETER
    Internal node number for the beginning of an arc (from-node).
     (Source: 
    ESRI
    )

    Whole numbers that are automatically generated.

    RCH_
    Internal node number for the end of an arc (to-node).
     (Source: 
    ESRI
    )

    Whole numbers that are automatically generated.

    RCH_ID
    Internal node number for the left polygon.
     (Source: 
    ESRI
    )

    Whole numbers that are automatically generated.

    COM_ID
    Internal node number for the right polygon.
     (Source: 
    ESRI
    )

    Whole numbers that are automatically generated.

    RCH_CODE
    Length of feature in internal units.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    RCH_DATE
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    SQ_KM
    User-defined feature number.
     (Source: 
    ESRI
    )

    GNIS_ID
    NAME
    SHAPE
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    SHAPE.AREA
    SHAPE.LEN
    nhd.pat
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    AREA
    Area of feature in internal units squared.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    PERIMETER
    Perimeter of feature in internal units.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    NHD#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    NHD-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    nhd.nat
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    ARC#
    NHD#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    NHD-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    COM_ID
    FTYPE
    ABOVE_ID
    BELOW_ID
    nhd.ratdrain
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    DRAIN#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    DRAIN-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    COM_ID
    RCH_COM_ID
    WB_COM_ID
    FTYPE
    FCODE
    METERS
    nhd.ratlm
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    LM#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    LM-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    COM_ID
    FTYPE
    FCODE
    METERS
    GNIS_ID
    NAME
    nhd.ratrch
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    RCH#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    RCH-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    COM_ID
    RCH_CODE
    RCH_DATE
    LEVEL
    METERS
    GNIS_ID
    NAME
    nhd.patlm
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    AREA
    Area of feature in internal units squared.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    PERIMETER
    Perimeter of feature in internal units.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    LM#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    LM-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    COM_ID
    FTYPE
    FCODE
    ELEV
    STAGE
    SQ_KM
    GNIS_ID
    NAME
    nhd.patrch
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    AREA
    Area of feature in internal units squared.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    PERIMETER
    Perimeter of feature in internal units.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    RCH#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    RCH-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    COM_ID
    RCH_CODE
    RCH_DATE
    SQ_KM
    GNIS_ID
    NAME
    nhd.patwb
    FID
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry.
     (Source: 
    ESRI
    )

    Coordinates defining the features.

    AREA
    Area of feature in internal units squared.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    PERIMETER
    Perimeter of feature in internal units.
     (Source: 
    ESRI
    )

    Positive real numbers that are automatically generated.

    WB#
    Internal feature number.
     (Source: 
    ESRI
    )

    Sequential unique whole numbers that are automatically generated.

    WB-ID
    User-defined feature number.
     (Source: 
    ESRI
    )

    COM_ID
    RCH_COM_ID
    FTYPE
    FCODE
    ELEV
    STAGE
    SQ_KM
    GNIS_ID
    NAME
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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?

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Why was the data set created?

 
REQUIRED: A summary of the intentions with which the data set was developed.

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How was the data set created?
  1. Where did the data come from?

  2. What changes have been made?

    (change 1 of 1) 
    Dataset copied.

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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?

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How can someone get a copy of the data set?
Are there legal restrictions on access or use of the data?

Access constraints: REQUIRED: Restrictions and legal prerequisites for accessing the data set.
Use constraints:
REQUIRED: Restrictions and legal prerequisites for using the data set after access is granted.

Distributor 1 of 1

  1. Who distributes the data set?

  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?

    • Availability in digital form:


      • Data format:
      		 Size: 738.288

  5. Is there some other way to get the data?

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

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Who wrote the metadata?
Dates:
Last modified: 20030508

Metadata author:
REQUIRED: The person responsible for the metadata information.
REQUIRED: The organization responsible for the metadata information.
REQUIRED: The city of the address., REQUIRED: The state or province of the address. REQUIRED: The ZIP or other postal code of the address.

REQUIRED: The telephone number by which individuals can speak to the organization or individual. (voice)

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

Metadata extensions used:
  • http://www.esri.com/metadata/esriprof80.html

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