Results 261 to 270 of about 3,051,692 (290)

LIDAR versus satellite-measured optical thickness of a wildfire aerosol

2009 IEEE Aerospace conference, 2009
A dual UV, Rayleigh/nitrogen Raman LIDAR system was developed for the purpose of profiling aerosols at vertical ranges between 0.025 and 5 km. The 355 nm LIDAR was operated in El Segundo, California during June and July 2008, during a period of intense wildfire activity in Northern California.
David S. Stoker, Gilda Fathi, Pavel Ionov, Steven M. Beck   +3 more
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[Effects of aerosol optical thickness on the optical remote sensing imaging quality].

Guang pu xue yu guang pu fen xi = Guang pu, 2015
In recent years, due to changes in atmospheric environment, atmospheric aerosol affection on optical sensor imaging quality is increasingly considered by the load developed departments. Space-based remote sensing system imaging process, atmospheric aerosol makes optical sensor imaging quality deterioration.
Xin-Li, Hu, Xing-Fa, Gu, Tao, Yu, Zhou-Wei, Zhang, Juan, Li, Hai-Jun, Luan   +5 more
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Validation and analysis of aerosol optical thickness retrieval over land

International Journal of Remote Sensing, 2011
Aerosol optical thickness AOT retrieval from Moderate Resolution Imaging Spectroradiometer MODIS data has been well established over oceans, but this is not the case over land. In this article, the AOT data sets retrieved by exploiting the synergy of TERRA and AQUA MODIS data SYNTAM over land are validated with ground-based measurements from Aerosol ...
Linlu Mei, Yong Xue, Hui Xu, Jie Guang, Yingjie Li, Ying Wang, Jianwen Ai, Shuzheng Jiang, Xingwei He   +8 more
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Variations of aerosol optical thickness of the atmosphere in Russia in 1976–2003

Russian Meteorology and Hydrology, 2007
Space-time variations of aerosol optical thickness of the atmospheric column are analyzed on the basis of observational data of the Russian actinometric network in 1976–2003. From the measured direct solar radiation flux and air humidity for 44 stations in European and Asian Russia, spectral aerosol optical thickness (AOT) of the atmosphere is ...
I. N. Plakhina, E. L. Makhotkina, N. V. Pankratova   +2 more
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Aerosol optical thickness trends and population growth in the Indian subcontinent

International Journal of Remote Sensing, 2011
The Indian subcontinent occupies 2.4% of the world land mass and is home to ∼17% of the world population. It is characterized by a wide range of population density P, significant population growth and high levels of air pollution. The quantification of the effect of urbanization on aerosol optical thickness AOT trends was carried out by analysing 8 ...
Pavel Kishcha, Boris Starobinets, Olga Kalashnikova, Pinhas Alpert   +3 more
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An alternative method for aerosol optical thickness retrieval in the UV range

Journal of Atmospheric and Solar-Terrestrial Physics, 2008
Atmospheric aerosol particle size distribution data derived from almucantar scans performed by the CIMEL sunphotometer at Belsk, Poland, in 2005 are used for the estimation of aerosol optical thickness (AOT) in the UV range by applying the Mie theory.
Aleksander Pietruczuk, Janusz Jarosławski   +1 more
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A Method for Retrieving Water Vapor Columnar Content and Aerosol Optical Thickness

2005
The capability to monitor and predict the physical characteristics of the atmosphere has been largely improved last decades. Aerosol optical thickness (AOT) and precipitable water vapor amount (W) arc crucial atmospheric parameters in the understanding of atmospheric dynamics, as well as for the atmospheric correction of optical remote sensing images ...
Bassani C, Cavalli RM, Estelles V, GomezAmo JL, MartinezLozano JA, Pignatti S, UtrillaS MP   +6 more
openaire   +5 more sources

Simulation and validation of the aerosol optical thickness over China in 2006

Acta Meteorologica Sinica, 2012
The Model of Atmospheric Transport and Chemistry (MATCH) developed by the US National Center for Atmospheric Research (NCAR) was used to calculate the aerosol optical thickness (AOT) over China in 2006, with emission source data of the Intercontinental Chemical Transport Experiment Phase B (INTEX-B) and NCEP/NCAR reanalysis data as inputs.
Hua Zhang, Min Zhang, Zhenlei Cui, Yuesi Wang, Jinyuan Xin   +4 more
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Retrieval of aerosol spectral optical thickness from AVIRIS data

International Journal of Remote Sensing, 1996
Abstract The ER-2, with the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) onboard, overflew Rapid City, South Dakota, and the United States Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Site, Oklahoma, on 9 August and 15 August 1993, respectively.
V. Y. ISAKOV, R. E. FEIND, O. B. VASILYEV, R. M. WELCH   +3 more
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Critical review of aerosol optical thickness estimation with satellite data

Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium, 2002
With a data set of aerosol optical thickness derived from ground sunphotometers measurements on some sites in West Africa, the author evaluates some models devoted to the retrieval of aerosol optical thickness from remotely sensed radiances. This evaluation focuses on the potential of the satellite data for the monitoring of the aerosol optical ...
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