Use of 315nm channel of sky radiometer to retrieve columnar ozone amount

Material type: 文書・図像類

Author: KHATRI, Pradeepほか

Publisher: Chiba University. Center for Environmental Remote Sensing

Publication date: 2013-07-04

Material Format: Digital

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Note (General)：: type:text[ABSTRACT]Sky radiometer data are being used to study aerosol and cloud parameters as well as water vapor content of our atmosphere. In order...

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Material Type: 文書・図像類
Title: Use of 315nm channel of sky radiometer to retrieve columnar ozone amount
Author/Editor: KHATRI, Pradeep
TAKAMURA, Tamio
YAMAZAKI, Akihiro
UCHIYAMA, Akihiro
Author Heading: KHATRI, Pradeep
TAKAMURA, Tamio
YAMAZAKI, Akihiro
UCHIYAMA, Akihiro
Publication, Distribution, etc.: Chiba University. Center for Environmental Remote Sensing
Publication Date: 2013-07-04
Publication Date (W3CDTF): 2013-07-04
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: 19
Volume: 19
Pages: 10-11
Text Language Code: eng
Target Audience: 一般
Note (General): type:text
[ABSTRACT]Sky radiometer data are being used to study aerosol and cloud parameters as well as water vapor content of our atmosphere. In order to further extend the utility of this instrument to measure columnar ozone concentration, we propose ozone concentration retrieval method using 315nm channel data of sky radiometer. The proposed method consists of (i) calculating calibration constant of direct intensity at 315nm using in situ observation data, which is an alternation of traditional Langley method, and (ii) retrieval technique of ozone concentration using sky radiometer observation data. For the limited set of data, the retrieved ozone concentrations using proposed method agreed well with directly measured ozone concentration by Brewer Spectro-photometer with root mean square error (RMSE) of 0.02atm-cm, validating the reasonable accuracies of in situ calibration and ozone retrieval techniques. The proposed method will be further validated using more observation data.The error analysis study suggests that the proposed method can have low retrieval error at high solar zenith angle and vice versa. The retrieval error differs with magnitudes of error associated with calibration constant, measured direct intensity and aerosol and Rayleigh optical thicknesses.
Format (IMT): application/pdf
Source: https://opac.ll.chiba-u.jp/da/curator/107442/ceresIntlSympo-19-P010.pdf
https://opac.ll.chiba-u.jp/da/curator/107442/ceresIntlSympo-19-P010.pdf
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