***Note: the shapefile grimpsites2.shp is identical to grimpsites.shp, except that it contains only 12 points instead of 24 (only the upstream end of each study reach, instead of both upstream and downstream end).***

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INSTITUTE FOR FISHERIES RESOURCES GIS TECHNICAL WORK GROUP -- GIS METADATA

LIBRARY: 		Garcia

COVERAGE NAME:		grimpsites.shp

METADATA FILE:		grimpsites.txt

METADATA FILE DATE:	March 28, 2002


METADATA PREPARER:	Eli Asarian
                      	Institute for Fisheries Resources (IFR)
                        791 Eighth Street  Ste. N
                        Arcata, CA  95521
			(707) 822-9428

COVERAGE DESCRIPTION:	This shapefile shows the locations of the sample study reaches of the Garcia River Instream Monitoring Project (GRIMP).  The report was prepared by Michael Maahs and Teri Jo Barber for the Mendocino County Resource Conservation District to the California Department of Forestry and Fire Protection.  The study looked at 12 streams in the Garcia River watershed.  The project examined Channel Morphology and Pool Depths, Water Temperature, Riparian Canopy and Shading, Large Woody Debris, Spawning Gravel Composition, Gravel Permeability, Turbidity, Sediment Transport Corridors, and Anadromous Fish Productivity.

Methods: All features were created in ArcView by using the "Add Point" tool to create point features by plotting them on top of a US Geologic Survey 1:24,000 scale map, titled "garcia_topo.tif".  Locations for features were based on a the map (1:100,000 scale?) at the beginning of the GRIMP final report, which showed shaded blobs denoting the study reaches (which are all located at the mouths of creeks).  A point was created for downstream and upstream end of each shaded area (sampled reach).


VITAL STATISTICS:

Datum:          NAD 27
Projection:     UTM
Units:          Meters
1st Std. Parallel:         34 00 00 (34.0 degrees N)
2nd Std. Parallel:         40 30 00 (40.5 degrees N)
Longitude of Origin:      -120 00 00 (120.0 degrees W)
Latitude of Origin:        00 00 00 (0.0 degrees)
False Easting (X shift):   0
False Northing (Y shift):  0
Source:                    see notes above
Data Structure:            Vector (point)


DATA DICTIONARY:

NOTE: Items common to all ARC/INFO coverages: LENGTH, AREA, PERIMETER
      COVER_ (#), and COVER _ID (-ID) are not described here.

Structure for attribute table

	Column		Column name
	2		SITE_NUM
	
SITE_NUM: This field contains the stream code used in the GRIMP report (1,2,3 ... 12) to identify each stream, and notes whether the point is the upstream (U) or downstream (D) end of the study reach.  The entries are (GRMP1D, GRMP1U, GRMP2D ... GRMP 12U)


DATA QUALITY ASSESSMENT:
The accuracy of each point depends on the accuracy of the original map, but my best guess for accuracy is that every point should be within approximately 100 (maybe 200) hundred meters of its true location.  One possible exception is the South Fork Garcia River/Flemming Creek, where the shaded areas ran together and it was a little confusing (accuracy at these two sites is probably worse than the rest of these sites).