ODFW Aquatic Inventories Project

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Basin-wide GIS Datasets

Basin Metadata

File Formats

Back to Basin-wide Aquatic Habitat Surveys

 

Basin-wide GIS Coverages: File Formats

 

Each .zip file contains two GIS shapefiles for the respective HUC.  These shapefiles contain stream habitat survey information at different scales. See below for file naming conventions.

File naming conventions:

Basin-wide Habitat GIS Data
zipped file:  <huc#>.zip
 
ZIP File contents:
    GIS Shapefiles:
        <BasinName_Reach2007>   Reach level information (i.e. for data surveyed in 2007)
        <BasinName_Habitat2007>   Habitat unit level information (i.e. for data surveyed in 2007)
   

Fish Presence / Absence Surveys
zipped file:  <basin>.zip

 

Viewing the files
The GIS coverages were generated using ArcInfo (7.2 - 9.3).  The exported files are not compressed and should be compatible in unix and pc environments.  Files are generally compressed with a zip utility.  Unzip file with WINZIP OR PKUNZIP.  If you do not have access to ArcMap or ArcInfo, you will need to import the .e00 files using an import utility (see here).  Once the coverages are imported, you may view the files in ArcExplorer, available free from the ESRI webpage at http://www.esri.com/software/arcexplorer/download.html.

Projection
All GIS coverages available from this web site are in a lambert conformal conic projection.  This projection is currently the standard projection for coverages produced within the state of Oregon and matches the coverages available at the Oregon Geospatial Enterprise Office (GEO).

Parameters are:

Projection              LAMBERT
Datum                     NAD83
Units                   3.28084             Spheroid                GRS1980
Parameters:
1st standard parallel                                   43  0  0.000
2nd standard parallel                                 45 30  0.000
central meridian                                       -120 30  0.00
latitude of projection's origin                         41 45  0.000
false easting (meters)                                  400000.00000
false northing (meters)                                      0.00000

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