Arid
DOI10.1109/TGRS.2017.2730758
Spaceborne Observations of the Diurnal Variation of Shortwave Aerosol Direct Radiative Effect at Top of Atmosphere Over the Dust-Dominated Arabian Sea and the Atlantic Ocean
Mishra, Manoj Kumar; Gupta, Ashok Kumar; Rajeev, K.
通讯作者Mishra, Manoj Kumar
来源期刊IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
ISSN0196-2892
EISSN1558-0644
出版年2017
卷号55期号:11页码:6610-6616
英文摘要

The ScaRaB payload onboard the low-inclination Megha-Tropiques (MT) satellite has been making observations of radiative fluxes at the top of the atmosphere (TOA) for different local times (LTs) of the day over the tropics since October 2011. This provides a unique opportunity to investigate the diurnal variation of the regional instantaneous aerosol direct radiative effect efficiency (IADREE) at TOA, which is otherwise not possible using the available long-term satellite observations carried out using similar sensors onboard polar sun-synchronous satellites. In this paper, the diurnal variations of the IADREE over the Arabian Sea and the Atlantic Ocean during June-September, when both these regions are engulfed by large-scale mineral dust plumes transported from the adjoining deserts, are investigated using collocated multiyear (2012-2014) observations of the MT-ScaRaB measured shortwave fluxes and MODIS-derived aerosol optical depth. The estimates of the IADREE made using the MT-ScaRaB data at 13:30 LT are found to be in agreement with those derived from the Cloud and the Earth’s Radiant Energy System data at this LT, at which the latter observations are carried out. The IADREE derived from the MT-ScaRaB shows diurnal peak value of -53 +/- 10 Wm(-2)tau(-1)(550) and -40 +/- 3 Wm(-2)tau(-1)(550) at solar zenith angle of similar to 40 degrees over the Arabian Sea and the Atlantic Ocean, respectively. Diurnal mean aerosol direct radiative effect efficiency at TOA during June-September is -22 +/- 4.5 Wm(-2)tau(-1)(550) over the Arabian Sea and -18 +/- 3.6 Wm(-2)tau(-1)(550) over the Atlantic Ocean.


英文关键词Aerosols solar radiation
类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000413656900047
WOS关键词ASIAN SUMMER MONSOON ; SAHARAN DUST ; GLOBAL OCEANS ; MEGHA-TROPIQUES ; SCARAB-3 INSTRUMENT ; OPTICAL-PROPERTIES ; MINERAL DUST ; SATELLITE ; MODIS ; CERES
WOS类目Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向Geochemistry & Geophysics ; Engineering ; 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/2XILL650/199583
作者单位ISRO, Space Phys Lab, Vikram Sarabhai Space Ctr, Thiruvananthapuram 695022, Kerala, India
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GB/T 7714
Mishra, Manoj Kumar,Gupta, Ashok Kumar,Rajeev, K.. Spaceborne Observations of the Diurnal Variation of Shortwave Aerosol Direct Radiative Effect at Top of Atmosphere Over the Dust-Dominated Arabian Sea and the Atlantic Ocean[J],2017,55(11):6610-6616.
APA Mishra, Manoj Kumar,Gupta, Ashok Kumar,&Rajeev, K..(2017).Spaceborne Observations of the Diurnal Variation of Shortwave Aerosol Direct Radiative Effect at Top of Atmosphere Over the Dust-Dominated Arabian Sea and the Atlantic Ocean.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,55(11),6610-6616.
MLA Mishra, Manoj Kumar,et al."Spaceborne Observations of the Diurnal Variation of Shortwave Aerosol Direct Radiative Effect at Top of Atmosphere Over the Dust-Dominated Arabian Sea and the Atlantic Ocean".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 55.11(2017):6610-6616.
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