
STS099-724-61
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Po River smog.
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STS099-724-66
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Po River smog over the Adriatic.
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STS099-703-7
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Wake Cloud Pattern - A distinct cumulus cloud pattern marks the an
island wake within a weak northerly wind field in the vicinity of
Isla Socorro, south of the Baja Peninsula of Mexico.
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STS099-715-29
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Contrail - A long contrail crosses the north coast of the Sea of
Okhotsk just east of Magadan as it appears to arc gradually
northeastward on what would be a great circle route to North America
from Japan.
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STS099-723-62
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Southern Hemisphere Cyclone - This non-tropical system with its
clockwise rotation is located in the southeastern Pacific east of New
Zealand. The band of cumulus near the occluded front associated with
this system is well to the north and east of the center. It is still
late summer and this is not a particularly vigorous system, having
little convection or high clouds.
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STS099-727-57
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Southern Hemisphere Cyclone II- Same system as STS099-732-062, but 24
hours later. Little change as occurred.
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STS099-723-81
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Edge of a Winter Storm - The pronounced edge of a developing winter
storm is poised just south and west of the coast of Labrador,
Newfoundland. Warm moist air as it wraps around the north side of
the storm center is overriding the frigid, dry air at the surface.
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STS099-732-69
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Cut-Off Low - A swirl of stratocumulus clouds west-southwest of the
Straits of Gibraltar is all that remains of a North Atlantic cyclone
which has been cut-off from the westerlies. Often observed off the
west coast of continents in winter, these systems either slowly
dissipate or provide and extra shot of energy and moisture to a
subsequent cyclone, if it passes close enough.
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STS099-734-35
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Cloud Streets of Warm Air Advection - Building bands of cumulus
clouds indicate warm air advection as they progress to the northwest
over the Houston-Galveston Bay area. Warm, moist air from the Gulf
of Mexico is borne on southeasterly winds over the sun-warmed land
areas. The heated air at the surface combines with the steady flow
to produce parallel corridors of rising air, marked by cumulus, and
subsiding air as clear. Note the lack of significant clouds over the
cooler water surfaces and how the cumulus increase in size and height
as they continue to acquire heat from the land surfaces.
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STS099-741-39
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Cloud Streets of Cold Air Advection - A bitterly cold blast of arctic
air plunges southward from far eastern Siberia, across the frozen
Gulf of Anadyr, and out over the cold, but relatively warm Bering Sea
where streets of stratocumulus form and spread. Again, parallel
bands of clouds indicate advection of air and heating from below.
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