globalchange  > 过去全球变化的重建
DOI: 10.1109/TGRS.2019.2891338
WOS记录号: WOS:000473436000025
论文题名:
Recent Regime Shifts in Mineral Dust Trends Over South Asia From Long-Term CALIPSO Observations
作者: Lakshmi, N. B.; Babu, S. Suresh; Nair, Vijayakumar S.
通讯作者: Babu, S. Suresh
刊名: IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
ISSN: 0196-2892
EISSN: 1558-0644
出版年: 2019
卷: 57, 期:7, 页码:4485-4489
语种: 英语
英文关键词: Aerosols ; climate change ; Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) ; dust trend ; mineral dust ; remote sensing
WOS关键词: INDIAN-SUMMER MONSOON ; MIDDLE-EAST ; ARABIAN SEA ; AEROSOLS ; RAINFALL
WOS学科分类: 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
英文摘要:

Mineral dust aerosols have significant implications on the regional-hydroclimate, especially over the regions located downwind of dust sources. During the premonsoon season, much of South Asia is characterized by enhanced aerosol loading favored by the transport of mineral dust from the desert regions of West Asia/Northwest India. Vertically resolved backscatter measurements at dual polarization from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) are used to estimate the dust optical depth over the Indian region. Using a decade long data set of CALIOP observations, a shift in long-term trend of dust over the Northwest India, Indo-Gangetic Plain, and West Asia is demonstrated. The decreasing trend in dust loading over the Indian region reversed to increasing after 2013. The interannual variability in premonsoon dust optical depth over Northwest India is found to be associated with winter time rainfall. The interannual variation of tropospheric temperature anomalies over Northwest India did not show a direct correlation with mineral dust loading.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/141558
Appears in Collections:过去全球变化的重建

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作者单位: Vilaam Sarabhai Space Ctr, Space Phys Lab, Thiruvananthapuram 695022, Kerala, India

Recommended Citation:
Lakshmi, N. B.,Babu, S. Suresh,Nair, Vijayakumar S.. Recent Regime Shifts in Mineral Dust Trends Over South Asia From Long-Term CALIPSO Observations[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2019-01-01,57(7):4485-4489
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