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

LIBRARY: 		Sonomarin

COVERAGE NAME:		laguna_sed_sites.shp

METADATA FILE:		laguna_sed_sites.shp.txt

METADATA FILE DATE:	November 8, 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 streambed monitoring sites in Lagunitas Creek conducted by Prunuske Chatham, Inc.  

Methods: All point features were created in ArcView by using the "add point" tool to create point features by plotting them on top of images of 1:24,000 USGS topographic maps.  Locations for sites came from the map "Streambed Monitoring Sites Lagunitas Creek Between Tocaloma and Shafter Bridges" contained in the report, "San Geronimo Bedload Sediment Reduction Program 1997 Monitoring Report" by Prunuske Chatham, Inc. for the Marin County Resource Conservation District and Marin Municipal Water District.  November 1997.  Attributes (CODE and SITE_NAME) were manually added using labels from the map.


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
	3		CODE	
	4		SITE_NAME	
	
LOCATION: This field contains the two-letter location code used in the KRIS chart and source tables that contain the sediment data.

SITE_NAME: The site name of where the sediment data was collected. 



DATA QUALITY ASSESSMENT:
Unknown, as it depends on the accuracy of the paper maps this layer was created from.  The accuracy of converting the digital non-GIS maps to GIS points should be within approximately 10-30 meters? Actual accuracy is most likely within 50-100m, probably better.