Stream Channel- Preflood

Metadata also available as

Frequently anticipated questions:

What does this data set describe?

Title: Stream Channel- Preflood
Aerial imagery was used to map the stream channel locations and widths that existed prior to the September 2013 flood. This dataset is incomplete. The majority of the stream channels that were mapped are those located within the Comprehensive Creek Planning Initiative Areas.
  1. How should this data set be cited?

    , Stream Channel- Preflood.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -105.652220
    East_Bounding_Coordinate: -105.054668
    North_Bounding_Coordinate: 40.262203
    South_Bounding_Coordinate: 39.928887

  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?

    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):

      • GT-polygon composed of chains (42)

    2. What coordinate system is used to represent geographic features?

      The map projection used is NAD 1983 HARN StatePlane Colorado North FIPS 0501 Feet.

      Projection parameters:
      Standard_Parallel: 39.71666666666667
      Standard_Parallel: 40.78333333333333
      Longitude_of_Central_Meridian: -105.5
      Latitude_of_Projection_Origin: 39.33333333333334
      False_Easting: 3000000.000316083
      False_Northing: 999999.999996

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000000026926350038536387
      Ordinates (y-coordinates) are specified to the nearest 0.000000026926350038536387
      Planar coordinates are specified in foot_us

      The horizontal datum used is D North American 1983 HARN.
      The ellipsoid used is GRS 1980.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.

  7. How does the data set describe geographic features?


    Internal feature number. (Source: Esri)

    Sequential unique whole numbers that are automatically generated.

    Feature geometry. (Source: Esri)

    Coordinates defining the features.


    USGS Stream Name (Source: USGS)

    LU Staff that completed the edits (Source: Land Use)

    Date feature was created (Source: Land Use staff)

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

    Positive real numbers that are automatically generated.


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?

    Boulder County Land Use

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

Why was the data set created?

For cartographic purposes to show the stream channel widths before the September 2013 Flood in Boulder County, CO.

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?

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
This data is for illustrative purposes only and the features depicted on it are approximate. More site specific studies may be required to draw accurate conclusions. Boulder County makes no warranties regarding the accuracy, completeness, reliability, or suitability of this data. Boulder County disclaims any liability associated with the use or misuse of this map. In accessing and/or relying on this map, the user fully assumes any and all risk associated with the information contained therein.

Who wrote the metadata?

Last modified: 09-Jan-2014
Metadata author:
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

Generated by mp version 2.9.12 on Thu Jan 09 15:40:05 2014