Re-analysis of SKYNET data for assessment of climate effects of aerosol and cloud
Project/Area Number |
24510007
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Environmental dynamic analysis
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Research Institution | Chiba University |
Principal Investigator |
TAKAMURA Tamio 千葉大学, 環境リモートセンシング研究センター, 名誉教授 (40272356)
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Co-Investigator(Renkei-kenkyūsha) |
KHATRI Pradeep 千葉大学, 環境リモートセンシング研究センター, 特任助教 (80377986)
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Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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Keywords | エアロゾル / SKYNET / 光学的厚さ / 単一散乱アルベド / エアロゾル放射効果 / SKYRAD.pack / 放射収支 |
Outline of Final Research Achievements |
The objective of this research is to improve the accuracy of Aerosol Optical Thickness(AOT) and Single Scattering Albedo(SSA) estimated in the SKYNET (http://atmos.cr.chiba-u.ac.jp/). The SSA has had a trend of a little overestimation compared with other data. In this research, both viewpoints of hardware and software in the SKYNET observation/analysis system are re-examined in detail. The newly developed spectro-pyranometer has been introduced for comparison of AOT and SSA with SKYNET products, and the calibration system has been also examined using an integrating sphere which is operated in AERONET/NASA. As a result, the most plausible reason of the overestimation of SSA in the SKYNET might be due to the small underestimation of the solid-view-angle of sensor of sky radiometer. Based on this result, a new calibration and revised method is proposed.
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Report
(4 results)
Research Products
(25 results)
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[Journal Article] Retrieval of characteristic parameters for water vapour transmittance in the development of ground-based sun–sky radiometric measurements of columnar water vapour2014
Author(s)
Campanelli, M., Nakajima, T., Khatri, P., Takamura, T., Uchiyama, A., Estelles, V., Liberti, G. L., and Malvestuto, V.
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Journal Title
Atmos. Meas. Tech.
Volume: 7
Issue: 4
Pages: 1075-1087
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Aerosol Optical Properties Retrieved from a Prede Sky Radiometer over an Urban Site of Beijing, China2014
Author(s)
CHE, H., G. SHI, Hujia ZHAO, T. NAKAJIMA, P. KHATRI, T. TAKAMURA, H. WANG, Y. WANG, J. SUN, X. ZHANG
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Journal Title
Journal of the Meteorological Society of Japan. Ser. II
Volume: 92A
Issue: 0
Pages: 17-31
DOI
NAID
ISSN
0026-1165, 2186-9057
Related Report
Peer Reviewed
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[Presentation] Cloud Observation in the SKYNET2014
Author(s)
Tamio TAKAMURA and Pradeep KHATRI
Organizer
MAIRS Open Science Conference 2014 -Future Earth in Asia -
Place of Presentation
Beijing Friendship Hotel, Beijing, China
Year and Date
2014-04-07 – 2014-04-10
Related Report
Invited
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