DOI: 10.1016/j.atmosenv.2013.10.030
Scopus记录号: 2-s2.0-84890106250
论文题名: Long term (2003-2012) spatio-temporal MODIS (Terra/Aqua level 3) derived climatic variations of aerosol optical depth and cloud properties over a semi arid urban tropical region of Northern India
作者: Kumar A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 83 起始页码: 291
结束页码: 300
语种: 英语
英文关键词: AOD
; MODIS
; Northern India
; Total cloud cover
; Water vapor
Scopus关键词: Atmospheric aerosols
; NASA
; Satellite imagery
; Water vapor
; Aerosol characteristics
; Aerosol-cloud interaction
; AOD
; Moderate resolution imaging spectroradiometer sensors
; MODIS
; Northern India
; Temporal heterogeneities
; Total cloud cover
; Radiometers
; aerosol property
; Aqua (satellite)
; climate variation
; cloud cover
; heterogeneity
; MODIS
; optical depth
; satellite data
; seasonality
; semiarid region
; Terra (satellite)
; water vapor
; aerosol optical depth
; air pollution
; article
; climate
; cloud
; comparative study
; environmental temperature
; forecasting
; India
; optical depth
; priority journal
; seasonal variation
; spatiotemporal analysis
; summer
; urban area
; water vapor
; winter
; Delhi
; India
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Aerosol optical depth (AOD) values at 550nm derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor onboard NASA's Terra and Aqua satellites, for the 10 years period of 2003-2012 have been analyzed in the present study. The retrieved satellite data (Terra/Aqua) has been used to investigate the temporal heterogeneity in columnar aerosol characteristics over a semi arid urban tropical Delhi zone (28° 34', 77° 07', 233m ASL) of Northern India with a resolution of 1°×1° grid in magnitude. Aerosol optical depths have found to be increased >25% across Delhi region of India during the study period of 2003-2012. Yearly mean Terra/Aqua AOD values have shown an increasing trend at a rate of 0.005/0.009 per year respectively. However, seasonally winter means Terra/Aqua AOD values exhibit an increasing trend at a rate of ~0.012/0.007 per year respectively. In order to provide a better understanding of aerosol-cloud interaction, a single paired one tailed distribution student's t-Test has been applied to the Terra AOD values and cloud parameters. The results extracted in the present study are compared with the earlier studies as well as with the AOD values over various other Indian regions. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81090
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Physics, Amity Institute of Applied Sciences, Amity University, Noida, UP 201 303, India
Recommended Citation:
Kumar A. Long term (2003-2012) spatio-temporal MODIS (Terra/Aqua level 3) derived climatic variations of aerosol optical depth and cloud properties over a semi arid urban tropical region of Northern India[J]. Atmospheric Environment,2014-01-01,83