English: This natural-colour
satellite image of the summit of Mauna Loa — overlaid with 100-meter
contour lines, helps illustrate why volcanic emissions from the summit rarely reach the
observatory.
The observatory is located on the northern slope of the mountain, 6 kilometres away from and 800 meters lower than the summit.
Most of the time, the prevailing north-easterly trade winds prevent volcanically contaminated
air from reaching the observatory. Only on a small percentage of
nights do the winds become light and southerly, pushing volcanic emissions downhill to the observatory.
The NASA website hosts a large number of images from the
Soviet/
Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The
SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
[2]
{{Information |Description={{en|1=This natural-colour
satellite image of the summit of Mauna Loa overlaid with 100-meter
contour lines helps illustrate why volcanic emissions from the summit rarely reach the [[:Category:Obs
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