Photo #: STS059-91-29 Date: Apr. 1994Geographic Region: MEXICO
Feature: CHAPALA L., OCCIDENTAL
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Photo #: STS059-91-29 Date: Apr. 1994 Geographic Region: MEXICO Feature: CHAPALA L., OCCIDENTAL |
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| STS059-91-29 Lake Chapala, Mexico April 1994 Lake Chapala, the largest lake in Mexico, is visible (center of photograph) in this low-oblique, southwest-looking photograph. The lake, set in a shallow depression in Mexico's central plateau, covers 650 square miles (1684 square kilometers), is 50 miles (80 kilometers) long, and is 8 miles (13 kilometers) wide. Lake Chapala is fed by the Lerma River, which enters the east end of the lake (point of land extending into the lake), and is drained by the Grand Santiago River (not visible in the photograph). In the past, Lake Chapala was a popular scenic resort area and fishing center. Since the early 1950s, the water levels in the lake have been receding at an alarming rate because of increased industrial use, agriculture in the surrounding valley (field patterns visible in the photograph), and a decreased flow of water into the lake from the Lerma River caused by field irrigation upstream. Over the last three decades, runoff from fertilizers and pesticides used on agricultural fields and discharges into the lake from chemical plants, oil refineries, and industrial plants have heavily polluted the lake. Guadalajara (gray area north of the western end of the lake) and small lakes (west of the lake) are visible. |
| Images: | All Available Images Low-Resolution 138k |
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| Mission: | STS059 |
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| Roll - Frame: | 91 - 29 |
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| Geographical Name: | MEXICO |
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| Features: | CHAPALA L., OCCIDENTAL |
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| Center Lat x Lon: | 21.5N x 103W |
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| Film Exposure: | N | N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus |
| Percentage of Cloud Cover-CLDP: | 10 |
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| Camera:: | HB |
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| Camera Tilt: | 38 | LO=Low Oblique, HO=High Oblique, NV=Near Vertical |
| Camera Focal Length: | 250 |
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| Nadir to Photo Center Direction: | NW | The direction from the nadir to the center point, N=North, S=South, E=East, W=West |
| Stereo?: | N | Y=Yes there is an adjacent picture of the same area, N=No there isn't |
| Orbit Number: | 24 |
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| Date: | 19940410 | YYYYMMDD |
| Time: | 214332 | GMT HHMMSS |
| Nadir Lat: | 20.5N |
Latitude of suborbital point of spacecraft |
| Nadir Lon: | 101.8W |
Longitude of suborbital point of spacecraft |
| Sun Azimuth: | 260 | Clockwise angle in degrees from north to the sun measured at the nadir point |
| Space Craft Altitude: | 120 | nautical miles |
| Sun Elevation: | 46 | Angle in degrees between the horizon and the sun, measured at the nadir point |
| Land Views: | PLAIN, MOUNTAIN |
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| Water Views: | LAKE, RIVER |
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| Atmosphere Views: | |
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| Man Made Views: | POLLUTION, AGRICULTURE, URBAN AREA |
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| City Views: | |
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Photo is not associated with any sequences | ||
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