Cloud Observation by Visible/Infrared Imager and Microwave Radiometer

Material type: 文書・図像類

Author: MASUNAGA, Hirohikoほか

Publisher: Chiba University. Center for Environmental Remote Sensing

Publication date: 2001-02-21

Material Format: Digital

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NDC: 512.75

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Note (General)：: type:text[ABSTRACT] The global distribution of microphysical properties of water clouds is investigated on the basis of satellite-retrieved spectral r...

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Material Type: 文書・図像類
Title: Cloud Observation by Visible/Infrared Imager and Microwave Radiometer
Author/Editor: MASUNAGA, Hirohiko
NAKAJIMA, Takashi Y.
NAKAJIMA, Teruyuki
KACHI, Misako
OKI, Riko
KURODA, Shunsuke
Author Heading: MASUNAGA, Hirohiko
NAKAJIMA, Takashi Y.
NAKAJIMA, Teruyuki
KACHI, Misako
OKI, Riko
KURODA, Shunsuke
Publication, Distribution, etc.: Chiba University. Center for Environmental Remote Sensing
Publication Date: 2001-02-21
Publication Date (W3CDTF): 2001-02-21
Periodical title: Proceedings of the CEReS international symposium = CEReS国際シンポジウム資料集
No. or year of volume/issue: 7
Volume: 7
Pages: 110-113
Text Language Code: eng
NDC: 512.75
451.2
450
Target Audience: 一般
Note (General): type:text
[ABSTRACT] The global distribution of microphysical properties of water clouds is investigated on the basis of satellite-retrieved spectral radiances over wide wavelength range from visible to microwave. Following our previous study using ISCCP and SSM/I data, the results from the Tropical Rainfall Measuring Mission (TR.MM) data are presented employing Visible and Infrared Scanner (VIRS) and TRMM Microwave Imager (TMI). Use of the TRMM sensors has the advantage that highly simultaneous observation is possible in comparison with analysis of combined data, from sensors on different platforms such as ISCCP and SSM/I. Combination of visible and near-infrared radiances, denote by Vis-NIR method, can retrieve cloud microphysical parameters such as the cloud optical thickness and effective droplet radius. The effective droplet radius can be obtained also from visible and microwave radiances (Vis-Mic method) by combining the optical thickness and the liquid water path. The effective radius retrieved by Vis-NIR, method may tend to be biased toward the value near the cloud top due to strong abortion in the near-infrared wavelengths, while Vis-Mic would yield the effective radius averaged throughout the vertical extent of clouds. The basic idea is to find a characteristic difference between the global distributions of effective cloud droplet radii from Vis-NIR and Vis-Mic methods. The difference would be caused in part by vertical inhomogeneity of droplet size within clouds, and therefore is expected to be a possible indicator of occurrence of drizzle.
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 千葉大学 : 千葉大学学術成果リポジトリ