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  Image: Geographic Location Direction Photo #: STS052-80-66 Date: Oct. 1992
Geographic Region: NIGERIA
Feature: LAKE CHAD

Ordering information for space photography
 
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  View Low-Resolution Image  
  STS052-080-066 Lake Chad, Africa November 1992
With standing water visible only in its southern basin, Lake Chad can be seen in this south-southeast-looking, low-oblique view. A major drought, which has been under way since 1970 with few interruptions, has plagued this and other regions of northern Africa. The northern basin, which is very vulnerable to any fluctuations in the climate, has dried and shrunk, displaying many sand dunes. The darker areas visible within the northern basin are marshland and swampland with dense scrub-type vegetation. The flow of the Komadugu Gana River into the northern basin of the lake from the west has also been reduced by the prolonged drought. In the southern basin of the lake, and especially in the eastern part of the lake, many sand dunes or islets can be seen scattered throughout. The flow of water into the southern basin from the Chari River has also been reduced by the prolonged drought. The average depth of the southern basin has been reduced to less than 15 feet (4.5 meters) compared to its average depth in 1968 of 20 feet (6 meters). To the east of Lake Chad, the sand of the Manga Desert is visible. Due to the prevailing wind, the sand is moving westward. Encroaching sand can already be seen as light-colored material moving into the eastern portions of the northern basin. (See AS7-008-1932 for a photograph that shows the condition of Lake Chad before the prolonged drought began in 1970.)
 
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Images: All Available Images Low-Resolution 103k
Mission: STS052  
Roll - Frame: 80 - 66
Geographical Name: NIGERIA  
Features: LAKE CHAD  
Center Lat x Lon: 13.0N x 14.0E
Film Exposure: N   N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus
Percentage of Cloud Cover-CLDP: 0
 
Camera: HB
 
Camera Tilt: LO   LO=Low Oblique, HO=High Oblique, NV=Near Vertical
Camera Focal Length: 100  
 
Nadir to Photo Center Direction:   The direction from the nadir to the center point, N=North, S=South, E=East, W=West
Stereo?: Y   Y=Yes there is an adjacent picture of the same area, N=No there isn't
Orbit Number:  
 
Date: 199210__   YYYYMMDD
Time:   GMT HHMMSS
Nadir Lat: N  
Latitude of suborbital point of spacecraft
Nadir Lon: E  
Longitude of suborbital point of spacecraft
Sun Azimuth:   Clockwise angle in degrees from north to the sun measured at the nadir point
Space Craft Altitude:   nautical miles
Sun Elevation:   Angle in degrees between the horizon and the sun, measured at the nadir point
Land Views: DUNE, DESERT  
Water Views: LAKE  
Atmosphere Views: SMOKE  
Man Made Views:  
City Views:  
Associated Photos in Sequence:

IMAGEPhoto #: AS07-8-1932
Description: AFRICA, LAKE CHAD-1968--LAKE LEVELS BEFORE BEGINNING OF DROUGHT, 1970
Sequence ID: 3A

IMAGEPhoto #: STS052-99-9
Description: AFRICA, LAKE CHAD-1992--LAKE LEVELS FROM DROUGHT THAT BEGAN IN 1970
Sequence ID: 3B

IMAGEPhoto #: STS052-80-66 ** Currently displayed photo **
Description: AFRICA, LAKE CHAD-1992--LAKE LEVELS FROM DROUGHT THAT BEGAN IN 1970
Sequence ID: 3C

IMAGEPhoto #: STS061-75-22
Description: AFRICA, LAKE CHAD-1993--LAKE LEVELS FROM DROUGHT THAT BEGAN IN 1970
Sequence ID: 3D

IMAGEPhoto #: STS061-75-23
Description: AFRICA, LAKE CHAD-1993--LAKE LEVELS FROM DROUGHT THAT BEGAN IN 1970
Sequence ID: 3E



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