Radiative properties of cirrus and water clouds in visible, near-IR and IR spectra, and their applications in remote sensing

Lisheng Xu; Jianyun Zhang; Guotong Zhang; Gang Luo; Hongbin Chen

doi:10.1117/12.177974

29 June 1994 Radiative properties of cirrus and water clouds in visible, near-IR and IR spectra, and their applications in remote sensing

Lisheng Xu, Jianyun Zhang, Guotong Zhang, Gang Luo, Hongbin Chen

Author Affiliations +

Proceedings Volume 2222, Atmospheric Propagation and Remote Sensing III; (1994) https://doi.org/10.1117/12.177974
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

From the standpoint of remote sensing, the scattering and radiative transfer properties of model cirrus clouds with hexagonal columns and plates in visible, near-IR, and IR spectra have been investigated by using the improved ray-optics theory and adding/doubling method. The radiative properties for eight types of water clouds are also studied. It is shown that the single scattering and multiple scattering properties of clouds depend strongly on the cloud macro- and micro- physics, and wavelengths. The analysis of brightness temperatures (BT) indicate that measurements of BT at 2.16, 2.7, and 3.1 micrometers from space may be used to distinguish cirrus clouds from water clouds. Furthermore, a technique for detecting clear skies and cirrus clouds is developed by analyzing the BT difference in both IR windows, i.e., 11.2 and 13.34 micrometers .

Citation Download Citation

Lisheng Xu, Jianyun Zhang, Guotong Zhang, Gang Luo, and Hongbin Chen "Radiative properties of cirrus and water clouds in visible, near-IR and IR spectra, and their applications in remote sensing", Proc. SPIE 2222, Atmospheric Propagation and Remote Sensing III, (29 June 1994); https://doi.org/10.1117/12.177974

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