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Topic Frequently Asked Questions / Data Products & Algorithms FAQ / What is the solar zenith angle and can I compute it? (locked)
"solz" is a product which can be output by msl12. It can be derived from knowledge of the pixel location on the earth (lon/lat) and time (earth-sun geometry).
A diagram can be found here:
http://oceancolor.gsfc.nasa.gov/DOCS/MSL12/vz.sz.gif
To compute it yourself, look at lonlat2solz.pro and associated IDL routines here:
http://oceancolor.gsfc.nasa.gov/cgi/idllibrary.cgi?dir=navigation
A diagram can be found here:
http://oceancolor.gsfc.nasa.gov/DOCS/MSL12/vz.sz.gif
To compute it yourself, look at lonlat2solz.pro and associated IDL routines here:
http://oceancolor.gsfc.nasa.gov/cgi/idllibrary.cgi?dir=navigation
Topic Frequently Asked Questions / Data Products & Algorithms FAQ / What is the solar zenith angle and can I compute it? (locked)