STS049-92-6

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Spacecraft nadir point: 28.3° N, 93.3° W

Photo center point: 29.5° N, 95.0° W

Nadir to Photo Center: Northwest

Spacecraft Altitude: 197 nautical miles (365km)
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Image Caption:
STS49-92-006: Low Level Atmospheric Stability Change This pic-
ture of Galveston Bay, Texas shows low clouds being carried
onshore by southerly winds. A definite stability change is evi-
dent as shown by the approach of diffuse stratus, along Galveston
coast, which becomes increasingly cellular and increasing in
brightness as the cloud moves inland. During the Texas spring,
the northern Gulf of Mexico offshore of Texas remains relatively
cool compared to the rapidly moderating, warm adjacent coastal
landmass. Here the water temperatures are approximately 21C/70F
while the afternoon land maximum temperature approaches 29C/85F.
This temperature gradient has a strong effect in modifying the
low level stability of the Texas coastal margin. (Picture was
taken on May 12th, 1992 at 22:18:53GMT)