SAR Orbit number: 47426
16 May 2004
This Synthetic Aperture Radar (SAR) multitemporal
colour composite image shows the city of San Francisco, California, and its bay.
San Francisco lies right on the northern tip of the San Francisco
Peninsula, where the bay opens into the Pacific Ocean. The Bay Bridge joins the
city to Oakland, on the eastern side, whereas the Golden Gate Bridge connects
San Francisco and a portion of the south-facing Marin County headlands near the
small bayside town of Sausalito. Another important bridge is the San Mateo
Hayward Bridge, streching for 8 Miles (13 km) from San Mateo to the west to
Hayward, 10 km to the south of Oakland.
To the south of the Golden Gate
is the Presidio National Park, clearly visible as the dark area in the northern
part of San Francisco. The Golden Gate Park lies further south and can be
spotted as the black W-E trending rectangle facing the ocean.
thick cross to the south of the city is the San Francisco International Airport,
better known as SFO, its IATA (International Air Transport Association) acronym.
The Golden Gate is one of the most famous suspension bridge in the
world, is 1.22 miles (1970 m] long and the distance between the towers ("main
span") is 4200 feet (1280 m), and their height is 746 feet (230 m) above the
San Francisco lies on one of the most seismic area on our planet.
A Magnitude 7.9 (Moment Magnitude Scale) earthquake hit the city on April 18,
1906, which was almost completely destroyed by subsequent fires.
image is made of three ERS-2 SAR PRI (Precision Radar Image) images acquired on
different dates, in which a different colour (RGB) was assigned to each date of
- Instrument: Synthetic Aperture Radar (SAR)
- Dates of Acquisition: Red: 3 November 2002, Green: 10 August 2003, Blue:
16 May 2004
- Frame: 747
- Orbit numbers: 39410, 43418, 47426
- Instrument features: 25 meter resolution, precision radar image
NE Lat/Long: N 38.11 / W 121.41
NW Lat/Long: N 38.00 / W 122.46
SW Lat/Long: N 37.10 / W 122.33
SE Lat/Long: N 37.19 / W 121.27
resolution tif here (175105 Kbytes)
Keywords: ESA European
Space Agency - Agence spatiale europeenne,
observation de la terre, earth observation,
satellite remote sensing,
teledetection, geophysique, altimetrie, radar,
chimique atmospherique, geophysics, altimetry, radar,