A modified water vapor channel made its appearance with the launch of the GOES-12 satellite, the first in the GOES-M to P series, on 23 July 2001.
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A modified water vapor channel made its appearance with the launch of the GOES-12 satellite, the first in the GOES-M to P series, on 23 July 2001.
The GOES-12/N/O/P water vapor channel is spectrally broader than its companion, the 6.7 micron channel on the GOES-8 to -11 series, and scans at an improved resolution of 4 km at the satellite sub-point.
The figure at right shows the expanded spectral coverage for the GOES-12 water vapor channel, covering the region from 5.77 to 7.33 microns with a center wavelength of 6.5 microns. A widening of the channel's spectral response function was needed to improve the signal-to-noise ratio and compensate for the detector's smaller 4 km field of view (FOV).
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