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  Image: Geographic Location Direction Photo #: ISS005-E-9293 Date: Aug. 2002
Geographic Region: SAUDI ARABIA
Feature: SAND DUNES, DEPRESSIONS

Ordering information for space photography
 
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  Ad Dahna Sand Cordon, Saudi Arabia:
Driven by northwesterly winds, sands from northwest Saudi Arabia have accumulated in the center of the country as great rivers of dunes (cordons) that extend for hundreds of kilometers. About 320 kilometers northwest of Riyadh, the steep, almost cliff-like margin of the Ad Dahna cordon casts a shadow (right center; diagonally across the scene). Two types of dune surface appear: the tracery of numerous linear dunes (center) and a featureless sand sheet (lower left). Dark, older rocks (30-65 million years old--top right) underlie the sand sea and crop out northeast of the cordon. Convergent dry river beds appear top right.

Astronauts have obtained thousands of detailed images of the world's remote deserts, helping scientists better understand local geomorphological features in a regional context.
 
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Images: All Available Images Low-Resolution 118k
Mission: ISS005  
Roll - Frame: E - 9293
Geographical Name: SAUDI ARABIA  
Features: SAND DUNES, DEPRESSIONS  
Center Lat x Lon: 27.1N x 45.1E
Film Exposure:   N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus
Percentage of Cloud Cover-CLDP: 10
 
Camera: E4
 
Camera Tilt: 46   LO=Low Oblique, HO=High Oblique, NV=Near Vertical
Camera Focal Length: 800  
 
Nadir to Photo Center Direction: SW   The direction from the nadir to the center point, N=North, S=South, E=East, W=West
Stereo?:   Y=Yes there is an adjacent picture of the same area, N=No there isn't
Orbit Number: 1253  
 
Date: 20020810   YYYYMMDD
Time: 103855   GMT HHMMSS
Nadir Lat: 29.1N  
Latitude of suborbital point of spacecraft
Nadir Lon: 48.1E  
Longitude of suborbital point of spacecraft
Sun Azimuth: 247   Clockwise angle in degrees from north to the sun measured at the nadir point
Space Craft Altitude: 211   nautical miles
Sun Elevation: 62   Angle in degrees between the horizon and the sun, measured at the nadir point
Land Views: DUNE  
Water Views: RIVER, SEA  
Atmosphere Views:  
Man Made Views:  
City Views: RIYADH  
Photo is not associated with any sequences


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