GOES Imaging of Northern
Chile, South West, and Hawaii
These images are provided by the GOES satellites. The wavelength
band is centered near 10 microns and shows cloud tops in the middle and
upper troposphere.
Some amount of cirrus could be present at higher altitudes which would
not show up in these images (this high altitude cirrus can be detected
with the 6.7 micron GOES image).
These movies are made from the images of today (UT) plus
yesterday (UT). Since 0 hr UT is near the start of an observing night,
the movie shows a maximum sequence from the night before last to
yesterday moring/afternoon to last night to this morning/afternoon. As
the UT date changes, the most recent movie would sequentially show last
night's sky plus this afternoon ...
A bar grows from left to right as the sequence evolves from the
UT begin date (UT time is ~ 1 hr for the first frame).
At night, much of the ground is cool. In these images lighter
shades indicate cooler temperatures, so the ground becomes darker
(warmer) during the day.
Even at night, some features show different temperatures. For
example, the
Salar de Atacama can be seen just to the west of the ALMA site on clear
nights in the Northern Chile movies.
The new images appear at intervals of approximately one half hour.
