Description Usage Arguments Value Author(s) See Also Examples
Given the brightness temperatures of AVHRR channels 3B and 4, the solar zenith angle and the satellite identification, the reflectance of AVHRR channel 3B is being returned.
The reflectivity returned is adjusted for the instrument response of the actual satellite being used. Currently support is added for NOAA-15 through NOAA-18, no support is added for METOP yet.
1 | fm_ch3brefl(bt3b,bt4, solang, date, satname)
|
bt3b |
brightness temperature of AVHRR channel 3B |
bt4 |
brightness temperature of AVHRR channel 4 |
solang |
the solar zenith angle in degrees |
date |
the corresponding dates as POSIXct objects |
satname |
name of the satellite e.g. "NOAA-18" |
The reflectivity (0-100%) as a value or a vector
Øystein Godøy (o.godoy@met.no)
fm_bidirrefl, fm_temp2rad, fm_rad2temp, fm_findsollum
1 2 |
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