2018
DOI: 10.5194/isprs-archives-xlii-3-1493-2018
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Study of Aerosol Optical Properties Over Two Sites in the Foothills of the Central Himalayas

Abstract: Atmospheric aerosol possesses impacts on climate system and ecological environments, human health and agricultural productivity. The environment over Himalayas and Tibetan Plateau region are continuously degraded due to the transport of pollution from the foothills of the Himalayas; mostly the Indo-Gangetic Plain (IGP). Thus, analysis of aerosol optical properties over two sites; Lumbini and Kathmandu (the southern slope of central Himalayas) using AERONET’s CIMEL sun photometer were conducted in this study. A… Show more

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“…Angstrom exponent data indicate the approximation of the dominant size of fine particles in aerosol loading in all seasons. For our general reference we considered the threshold value of AOD and AE for nearby region (Delhi) for anthropogenic, mixed type, biomass burning and dust were taken as 0.3-1.3 and > 0.9, 0.4-0.7 and < 0.9, > 1.3 and > 0.8, and > 0.7 and < 0.6 respectively [27,28]. The significant standard deviation in the AOD and AE represents for the different types of particulate components loading into the atmosphere [19,29].…”
Section: Variability Of Aod050 Ae Coefficients and Precipitable Watermentioning
confidence: 99%
“…Angstrom exponent data indicate the approximation of the dominant size of fine particles in aerosol loading in all seasons. For our general reference we considered the threshold value of AOD and AE for nearby region (Delhi) for anthropogenic, mixed type, biomass burning and dust were taken as 0.3-1.3 and > 0.9, 0.4-0.7 and < 0.9, > 1.3 and > 0.8, and > 0.7 and < 0.6 respectively [27,28]. The significant standard deviation in the AOD and AE represents for the different types of particulate components loading into the atmosphere [19,29].…”
Section: Variability Of Aod050 Ae Coefficients and Precipitable Watermentioning
confidence: 99%