干旱区生态环境知识资源中心(Arid): Using the Himawari-8 AHI Multi-Channel to Improve the Calculation Accuracy of Outgoing Longwave Radiation at the Top of the Atmosphere

Arid

DOI	10.3390/rs11050589
	Using the Himawari-8 AHI Multi-Channel to Improve the Calculation Accuracy of Outgoing Longwave Radiation at the Top of the Atmosphere
	Kim, Bu-Yo 1; Lee, Kyu-Tae 1,2
通讯作者	Lee, Kyu-Tae
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2019
卷号	11 期号:5
英文摘要	In this study, Himawari-8 Advanced Himawari Imager (AHI) longwave channel data that is sensitive to clouds and absorption gas were used to improve the accuracy of the algorithm used to calculate outgoing longwave radiation (OLR) at the top of the atmosphere. A radiative transfer model with a variety of atmospheric conditions was run using Garand vertical profile data as input data. The results of the simulation showed that changes in AHI channels 8, 12, 15, and 16, which were used to calculate OLR, were sensitive to changes in cloud characteristics (cloud optical thickness and cloud height) and absorption gases (water vapor, O-3, CO2, aerosol optical thickness) in the atmosphere. When compared to long-term analysis OLR data from 2017, as recorded by the Cloud and Earth's Radiant Energy System (CERES), the OLR calculated in this study had an annual mean bias of 2.28 Wm(-2) and a root mean square error (RMSE) of 11.03 Wm(-2). The new calculation method mitigated the problem of overestimations in OLR in mostly cloudy and overcast regions and underestimated OLR in cloud-free desert regions. It is also an improvement over the result from the existing OLR calculation algorithm, which uses window and water vapor channels.
英文关键词	Himawari-8 Advanced Himawari Imager (AHI) multi-channel outgoing longwave radiation at the top of the atmosphere (TOA OLR) radiative transfer model algorithm improvement Cloud and Earth's Radiant Energy System (CERES)
类型	Article
语种	英语
国家	South Korea
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000462544500117
WOS关键词	EMITTED RADIANCE INTERFEROMETER ; INCIDENT SHORTWAVE RADIATION ; EARTH RADIATION ; CLOUD TYPES ; PART II ; HIRS ; OLR ; RETRIEVAL ; BUDGET ; IRRADIANCES
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218347
作者单位	1.GWNU, Res Inst Radiat Satellite, 7 Jukheon Gil, Kangnung 25457, Gangwon, South Korea; 2.GWNU, Dept Atmospher & Environm Sci, 7 Jukheon Gil, Kangnung 25457, Gangwon, South Korea
推荐引用方式 GB/T 7714	Kim, Bu-Yo,Lee, Kyu-Tae. Using the Himawari-8 AHI Multi-Channel to Improve the Calculation Accuracy of Outgoing Longwave Radiation at the Top of the Atmosphere[J],2019,11(5).
APA	Kim, Bu-Yo,&Lee, Kyu-Tae.(2019).Using the Himawari-8 AHI Multi-Channel to Improve the Calculation Accuracy of Outgoing Longwave Radiation at the Top of the Atmosphere.REMOTE SENSING,11(5).
MLA	Kim, Bu-Yo,et al."Using the Himawari-8 AHI Multi-Channel to Improve the Calculation Accuracy of Outgoing Longwave Radiation at the Top of the Atmosphere".REMOTE SENSING 11.5(2019).