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U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

Oregon / Washington

GIS Metadata


Aquatic Restoration Geographic NAD83 (Arcs)

Frequently-asked questions:


What does this data set describe?

Title:
Aquatic Restoration Geographic NAD83 (Arcs)

Abstract:
This theme shows linework for Aquatic Restoration projects with BLM managed lands in Oregon and Washington

Supplemental information:
BLM (Bureau of Land Management), IRDA (Interagency Restoration Database), DOB (BLM District Boundaries), FO (Field Office)

  1. How should this data set be cited?

    Bureau of Land Management, 20140616, Aquatic Restoration Geographic NAD83 (Arcs).

  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: -124.488558
    East: -116.807590
    North: 48.679351
    South: 41.965419

  3. What does it look like?

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

    Calendar date: 20140616
    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):
      • String (2285)

    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 2e-008. Longitudes are given to the nearest 2e-008. Latitude and longitude values are specified in Decimal Degrees.

      The horizontal datum used is D North American 1983.
      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?

    irda_arc
    OBJECTID
    Internal feature number. (Source: ESRI)
                      

    Sequential unique whole numbers that are automatically generated.

    PROJ_ID
    IRDA Project identification. Identifier to distinguish individual projects. (Source: IRDA)
                      

    IRDA_ID
    Unique identifier automatically created when a new project is created. This field is used to link all of the IRDA features together.

    SOURCE
    Source of arc feature that is being added into IRDA.

    LOAD_DATE
    Date feature was created.

    SHAPE
    Feature geometry. (Source: ESRI)
                      

    Coordinates defining the features.

    SHAPE.LEN
    rel_IRDA_project_to_arc
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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)

    • Bureau of Land Management

  2. Who also contributed to the data set?

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

    Al Doelker
    Bureau of Land Management - Oregon State Office
    Fish Biologist
    (503) 808-6067 (voice)
    (503) 808-6021 (FAX)
    Al_Doelker@or.blm.gov
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Why was the data set created?

Aquatic Restoration and land use planning

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How was the data set created?

  1. Where did the data come from?

    Interagency Restoration Database (source 1 of 1)

    Regional Ecosystem Office, unpublished material, Interagency Restoration Database.

    Type of source media: None

  2. What changes have been made?

    The REO IRDA Restoration Arc features were converted into a geodatabase, domains and relationships generated based on BLM Corporate data procedures.

    Person responsible for change:
    Jeanne Keyes
    Bureau of Land Management, Oregon State Office
    GIS Analyst
    P.O. Box 2965
    Portland, OR 97208
    US

    (503) 808-6511 (voice)
    (503) 808-6374 (FAX)
    Jeanne_Keyes@or.blm.gov

    2005 Restoration Data were entered into the geodatabase utilizing the IRDA edit tools by each District.

    Person responsible for change:
    Jeremy Hruska
    Bureau of Land Management, Oregon State Office
    GIS Training Specialist
    P.O. Box 2965
    Portland, OR 97208
    US

    (503) 808-6433 (voice)
    (503) 808-6374 (FAX)
    Jeremy_Hruska@or.blm.gov

    Date: unknown (change 3 of 3)
    For the years 2002, 2003, and 2004, Aquatic Restoration arc features were digitized by each BLM district using the REO IRDA MS-Access and ArcView application.

    Person responsible for change:
    Jeanne Keyes
    Bureau of Land Management, Oregon State Office
    GIS Analyst
    P.O. Box 2965
    Portland, Oregon 97208
    US

    (503) 808-6511 (voice)
    (503) 808-6374 (FAX)
    Jeanne_Keyes@or.blm.gov

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How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Attribute accuracy is unknown. Each district enters data using the BLM IRDA edit toolset, based on restorations activities funded by BLM. Scale and accuracy is variable based on how the data is collected and digitized into the system.

  2. How accurate are the geographic locations?

    Unknown

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    This theme covers BLM managed lands in Oregon and Washington. Completeness is variable across districts.

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

    Consistency is variable across districts. Consistency is based on how the data is collected and digitized into the system for each district.

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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: Discretionary, contains no sensitive information - generally considered releaseable.
Use constraints:
No warranty is made by the Bureau of Land Management as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data.

Distributor 1 of 1

  1. Who distributes the data set?

    Eric Hiebenthal
    Bureau of Land Management, Oregon State Office
    GIS Data Management Specialist
    P.O. Box 2965
    Portland, OR 97208
    US

    503-808-6565 (voice)
    503-808-6419 (FAX)
    ehiebent@blm.gov

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

  3. What legal disclaimers am I supposed to read?

    No warranty is made by the Bureau of Land Management as to the accuracy, reliability, or completeness of these data for individual use or aggregate use with other data.

  4. How can I download or order the data?

  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: 20070131
Last reviewed: 20090817
To be reviewed: 20130817

Metadata author:
Stanley Frazier
Bureau of Land Management, Oregon State Office
State Data Administrator
P.O. Box 2965
Portland, OR 97208
US

(503)808-6009 (direct) (503)808-6004 (front desk) (voice)
(503)808-6419 (FAX)
Stan_Frazier@or.blm.gov

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

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