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NASA/JPL/NIMA.
"AmericaSRTM-NorthSanDiego-picasa.jpg"
Online Image. Shuttle Radar Topography Mission. 20 Jan. 2006 97kb. 727x458px.
<http://photojournal.jpl.nasa.gov/catalog/PIA03330>
San Diego
This image shows a perspective view created by draping a Landsat image over the elevation framework
from an SRTM data set for the city of San Diego.
It was created from an original map produced from data obtained by NASA's
Shuttle Radar Topography Mission (SRTM). Using Google's free Picasa2 program, the
contrast was enhanced, and a fill light and glow were added to brighten the image. It was then sharpened
to obtain the image above. The original image can be viewed at the NASA link above.
The influence of topography on the growth of the city of San Diego is seen clearly in this
computer-generated perspective viewed from the south. The Peninsular Ranges to the east of
the city have channeled development of the cities of La Mesa and El Cajon, above the center.
San Diego itself clusters around the bay enclosed by Point Loma and Coronado Island. In the
mountains to the right, Lower Otay Lake and Sweetwater Reservoir are the dark patches. This
3-D perspective view was generated using topographic data from the Shuttle Radar Topography Mission
(SRTM) and an enhanced color Landsat 5satellite image. Topographic expression is exaggerated two times.
Size: scale varies in this perspective image
Location: 32.6 deg. North lat., 117.1 deg. West lon.
Orientation: looking north
Image Data: Landsat Bands 3, 2, 1 as red, green, blue, respectively
Original Data Resolution: SRTM 1 arcsecond (30 meters or 98 feet), Thematic Mapper 1 arcsecond (30 meters
or 98 feet)
Date Acquired: February 2000 (SRTM)
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