Andrew Y. Morita
Steven K. Predmore
Unpublished material
Unknown
A 30 meter Digital Elevation Model (DEM) of the San Gorgonio Pass area, Riverside County, California.
map
USGS Open-File Report
00-329
Rapid City, SD
U.S. Geological Survey
http://water.usgs.gov/lookup/getspatial?sgpwa_utm27m
Digital Elevation Models (DEMs) are digital records of
terrain elevations at regularly spaced intervals. The
interval between elevations of 7.5 minute DEMs is
30-meters. Each DEM file covers the area of one U.S.
Geological Survey 1 to 24,000 scale 7.5 minute
topographic quadrangle.
DEMs can be used for creation of slope maps, aspect
maps, shaded relief maps, and contour maps, for analysis
of hydrography and runoff. For this dataset, the original
ArcInfo Grid of the San Gorgonio Pass and surrounding
area in Riverside County, California was clipped to produce
accurate elevation data for calculations in hydrologic
applications.
20010326
Source map
None planned
-117.38128792
-116.54214193
34.1379092
33.69364121
None
Digital Elevation Model
DEM
30 meter
San Gorgonio
Land surface
Raster
inlandWaters
None
San Gorgonio Pass
Riverside County
California
United States
none
none
Allen H. Christensen
U.S. Geological Survey
Hydrologist
(mailing and physical address)
U.S. Geological Survey, WRD.
San Diego Project Office
5735 Kearny Villa Road, Suite O
San Diego
CA
92123
USA
1-888-275-8747
(858) 637-9201
ahchrist@usgs.gov
Contact via email.
http://water.usgs.gov/GIS/browse/sgpwa_lsat_meters.jpg
Representation of the data set
jpg
Windows_NT, 5.0, Intel
ARC/INFO version 8.1
Not applicable for raster data.
The original projection for this dataset was UTM, NAD27,
Units meters, Zone 11, with a Y-shift of negative
-3,500,000. After further processing the dataset was
re-projected in UTM, NAD27, Units meters, Zone 11, with
a corrected Y-shift equal to zero.
This ArcInfo Grid was originally projected in UTM zone 11,
meters with a -3,500,000 yshift. Requiring
only the area of and near San Gorgonio Pass, the ArcInfo
command "setmask" was used to clip out a smaller
section of the grid. Once the grid was clipped down to its
appropriate size, the ArcInfo command "Project" was used
to reproject the DEM into its current projection of UTM
meters and a yshift of 0.
20011031
11300000
Andrew Y. Morita
U.S. Geological Survey
Geographer
mailing and physical address
U.S. Geological Survey, WRD.
San Diego Project Office
5735 Kearny Villa Road, Suite O.
San Diego
CA
92123
USA
1-888-275-8747
(858) 637-9201
amorita@usgs.gov
Contact via email.
Raster
Grid Cell
1641
2579
COLUMN ITEM NAME WIDTH OUTPUT TYPE
N.DEC ALTERNATE NAME
1 VALUE 4 10 B -
5 COUNT 4 10 B -
COLUMN ITEM NAME WIDTH OUTPUT TYPE
N.DEC ALTERNATE NAME
1 MIN 8 15 F 3
9 MAX 8 15 F 3
17 MEAN 8 15 F 3
25 STDV 8 15 F 3
none
U.S. Geological Survey
Ask USGS - Water Webserver Team
mailing
445 National Center
Reston
VA
20192
1-888-275-8747 (1-888-ASK-USGS)
http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sgpwa_utm27m
Although this data set has been used by the U.S. Geological
Survey, U.S. Department of the Interior, no warranty expressed or
implied is made by the U.S. Geological Survey as to the accuracy
of the data and related materials. The act of distribution shall not
constitute any such warranty, and no responsibility is assumed by
the U.S. Geological Survey in the use of this data, software, or
related materials.
Any use of trade, product, or firm names is for descriptive
purposes only and does not imply endorsement by the U.S.
Government.
SDTS
Full coverage
zipped
1
http://water.usgs.gov/GIS/dsdl/dem_meters.tar.gz
Export
Full coverage
zipped
1
http://water.usgs.gov/GIS/dsdl/sgpwa_utm27m.e00.gz
None. This dataset is provided by USGS as a public service.
20041108
U.S. Geological Survey
Ask USGS -- Water Webserver Team
mailing
445 National Center
Reston
VA
20192
1-888-275-8747 (1-888-ASK-USGS)
http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+sgpwa_utm27m
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998