Results 261 to 270 of about 8,334 (293)

Aerosol optical thickness and atmospheric path radiance

Journal of Geophysical Research: Atmospheres, 1993
Spaceborne remote sensing of aerosol particles, evaluation of the climatic effects of aerosol, and atmospheric corrections of spaceborne imagery of the Earth's surface are based on an assumed relationship between the spectral aerosol optical thickness and the spectral path radiance.
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Using a new aerosol relative optical thickness concept to identify aerosol particle species

Atmospheric Research, 2014
We developed an aerosol relative optical thickness concept and then established an effective aerosol particle recognition model by analyzing variations in aerosol optical thicknesses in Beijing between 2001 and 2006. The accuracy of the model was verified using inverse calculations.
Yuan Yuan, Yong Shuai, Xiao-Wei Li, Bin Liu, He-Ping Tan   +4 more
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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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Extension and statistical analysis of the GACP aerosol optical thickness record

Atmospheric Research, 2015
The primary product of the Global Aerosol Climatology Project (GACP) is a continuous record of the aerosol optical thickness (AOT) over the oceans. It is based on channel-1 and -2 radiance data from the Advanced Very High Resolution Radiometer (AVHRR) instruments flown on successive National Oceanic and Atmospheric Administration (NOAA) platforms.
Igor V. Geogdzhayev, Michael I. Mishchenko, Jing Li, William B. Rossow, Li Liu, Brian Cairns   +5 more
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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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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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[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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Preliminary evaluation of S‐NPP VIIRS aerosol optical thickness

Journal of Geophysical Research: Atmospheres, 2014
AbstractThe Visible Infrared Imaging Radiometer Suite (VIIRS) is the next‐generation polar‐orbiting operational environmental sensor with a capability for global aerosol observations. The VIIRS aerosol Environmental Data Record (EDR) is expected to continue the decade‐long successful multispectral aerosol retrieval from the NASA's Earth Observing ...
Hongqing Liu, Lorraine A. Remer, Jingfeng Huang, Ho‐Chun Huang, Shobha Kondragunta, Istvan Laszlo, Min Oo, John M Jackson   +7 more
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Aerosol optical thickness retrieval from Sun photometer measurements

Proceedings of IGARSS '94 - 1994 IEEE International Geoscience and Remote Sensing Symposium, 2002
Aerosol optical thickness (AOT) is usually retrieved from Sun photometer (SP) signal in three steps: (1) SP calibration (determination of "zero signal" I/sub 0/); (2) retrieval of the total optical thickness; (3) removal of the molecular scattering and absorption.
A. Ignatov, I. Dergileva, Yu. Ratner, S. Sakerin, D. Kabanov   +4 more
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