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Improving IR cloud phase determination with 20 microns spectral observations
Author(s) -
Rathke Carsten,
Fischer Jürgen,
Neshyba Steven,
Shupe Matthew
Publication year - 2002
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2001gl014594
Subject(s) - radiance , remote sensing , microwave , infrared , environmental science , phase (matter) , spectrometer , radiometer , radar , lidar , spectral line , microwave radiometer , meteorology , atmospheric sciences , materials science , optics , geology , physics , astronomy , computer science , telecommunications , quantum mechanics
Adding 20 μm spectral observations to observations in the 8–12 μm region can significantly improve infrared cloud phase determination from both space and the surface. We demonstrate this with 7–20 μm radiance spectra of Arctic stratus clouds measured by a ship‐based FTIR spectrometer during the SHEBA experiment. Our results are compared with phase classifications obtained from lidar, microwave radiometer, and radar data.