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(519)
aircraft
,
helicopter
,
avaps
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(1)
venera-13
,
venera-14
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(152)
radiosondes
,
balloons
,
sounding rockets
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(1026)
models
,
maps
,
dem
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(2409)
ground-based observations
,
ground stations
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fixed observation stations
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(2617)
terra
,
aqua
,
noaa-11
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(950)
ships
,
buoys
,
moorings
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(53)
space shuttles
,
sts-59
,
sts-68
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