Photo #: STS075-723-21 Date: na 1996 Geographic Region: USA-TEXAS Feature: GALVESTON & TRINTY BAY |
STS075-723-021 Galveston Bay, Texas, U.S.A. March 1996 A shallow, sediment-laden inlet of the Gulf of Mexico, Galveston Bay is featured in this north-northwest-looking, low-oblique photograph. During the last ice age, when sea levels were much lower than now, the mouths of the Trinity River and the San Jacinto River extended southeastward into the Gulf of Mexico. The rivers' estuaries filled and deposited sediment into a shallow basin that became Galveston Bay. As the ice melted, the sea level rose by almost 400 feet (122 meters) filling the present bay to an average depth of 12 feet (4 meters). The present mouth of the Trinity River (just below top center) is in Trinity Bay, upper Galveston Bay. The large sediment-laden, circular body of water east of the Trinity River mouth is Lake Anahuac. The former San Jacinto River estuary (below upper left) is now part of the Houston Ship Channel, which was completed in 1914. Reflective areas along the ship channel indicate numerous oil refineries and petrochemical plants. The completion of the Houston Ship Channel also included dredging a channel in Galveston Bay to the Gulf of Mexico 35 feet (11 meters) deep. Visible are Galveston on the eastern tip of Galveston Island and reflective oil refineries and petrochemical complexes northwest of Galveston in Texas City. |
Images: | All Available Images Low-Resolution 298k |
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Mission: | STS075 |
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Roll - Frame: | 723 - 21 |
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Geographical Name: | USA-TEXAS |
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Features: | GALVESTON & TRINTY BAY |
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Center Lat x Lon: | 29.5N x 94.5W |
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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: | 0 |
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Camera:: | HB |
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Camera Tilt: | LO | 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?: | Y | Y=Yes there is an adjacent picture of the same area, N=No there isn't |
Orbit Number: | |
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Date: | 1996____ | YYYYMMDD |
Time: | GMT HHMMSS |
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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 |
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Space Craft Altitude: | nautical miles |
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Sun Elevation: | Angle in degrees between the horizon and the sun, measured at the nadir point |
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Land Views: | COAST, PLAIN |
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Water Views: | BAY, LAKE, RIVER, GULF, SEDIMENT |
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Atmosphere Views: | |
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Man Made Views: | HIGHWAY |
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City Views: | |
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Photo is not associated with any sequences |
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