Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1109/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
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ISSN | 0196-2892 |
EISSN | 1558-0644 |
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 |
推荐引用方式 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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