SURFRAD Total Sky Imagers (TSIs)
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Total Sky Imager at Desert Rock, Nevada, SURFRAD station.
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SRRB collects data from Total Sky Imagers located at each SURFRAD site. The
TSI consists of a web camera suspended over a convex mirror. The mirror has
a black sun-blocking stripe, which rotates during the day to protect the camera's
sensitive picture element from bright sunlight. Images of the sky are
collected by a local computer, and processed into percent cloud cover data.
Recent images, taken every 15-minutes, are available from the Boulder, Colorado and Desert Rock, Nevada
sites. Daily cloud cover data are available for all sites. One-minute images
from all sites are archived, but are not available on the web due to storage
constraints. The raw image files may be requested for specific, short time
periods.
