Results 241 to 250 of about 137,118 (287)

Validation of Himawari-8 aerosol optical depth retrievals over China

Atmospheric Environment, 2019
High temporal resolution (every 10 min) aerosol observations are rarely provided by satellite sensors. The Advanced Himawari Imager (AHI) aboard Himawari-8 can provide aerosol optical depth (AOD) over China with this frequency.
Z. Zhang, Weiling Wu, M. Fan, Minghui Tao, Jing Wei, Jia Jin, Yunhui Tan, Quan Wang   +7 more
semanticscholar   +1 more source

Characteristics of aerosol optical depth over land types in central Asia.

Science of the Total Environment, 2020
Aerosols are an important contributor to global atmospheric changes and have critical effects on the climate system. Regionally, aerosols in central Asia comprise a significant portion of global aerosols. Based on aerosol optical depth (AOD)Level 2 daily
Jie Liu, Jianli Ding, Liang Li, Xiaohang Li, Zhe Zhang, Si Ran, Xiangyu Ge, Junyong Zhang, Jingzhe Wang   +8 more
semanticscholar   +1 more source

Evaluation of MODIS and two reanalysis aerosol optical depth products over AERONET sites

Atmospheric research, 2019
This study selects 400 sites from Aerosol Robotic Network (AERONET) over 2002–2015 to develop an aerosol optical depth (AOD) evaluation dataset, which is used to evaluate two reanalysis AOD datasets (MERRAero and MERRA-2) from Modern-Era Retrospective ...
Hanyu Shi, Zhiqiang Xiao, X. Zhan, Han Ma, Xiaodan Tian   +4 more
semanticscholar   +1 more source

Estimating PM2.5 concentration from satellite derived aerosol optical depth and meteorological variables using a combination model

Atmospheric pollution research, 2019
In India, PM2.5 concentration is monitored at few locations by various agencies. The measurements are sporadic over temporal and spatial scales and include a lot of missing data.
A. Chelani
semanticscholar   +1 more source

Spatiotemporal patterns of aerosol optical depth throughout China from 2003 to 2016.

Science of the Total Environment, 2019
With China's rapid economic growth, particle pollution, especially fine particulate matter (PM2.5), which is known to have adverse health impacts, has become an increasingly serious issue.
Qingqing He, Yefu Gu, Ming Zhang
semanticscholar   +1 more source

Evaluating Aerosol Optical Depth From Himawari‐8 With Sun Photometer Network

Journal of Geophysical Research: Atmospheres, 2019
The Advanced Himawari Imager (AHI), the primary sensor aboard the Japanese Himawari‐8 geostationary satellite, measures regional aerosol observations with high temporal‐spatial resolution.
Wei Wang, Feiyue Mao, Zengxin Pan, W. Gong, M. Yoshida, Bin Zou, Huiyun Ma   +6 more
semanticscholar   +1 more source

Aerosol optical depths and their contributing sources in Taiwan

Atmospheric Environment, 2017
In this paper, we present a quantitative investigation of the contributions of different aerosols to the aerosol optical depths (AODs) in Taiwan using a global chemical transport model (GEOS-Chem) and remote sensing measurements. The study focus is on the period from June 2012 to October 2013. Five different types of aerosols are investigated: sea salt,
K.L. Chan, K.L. Chan
openaire   +1 more source

Aerosol optical depth characteristics in Yinchuan area

SPIE Proceedings, 2013
Sand dust aerosol is the main component of aerosol in troposphere atmosphere of East Asia, which can produce the extensive influence on the ecosystem, atmosphere environment and atmosphere chemistry through intensive sand dust weather process. For investigation of the aerosol optical depth (AOD) and its temporal-spatial evolution over this area, a ...
Yaya Zhang, Jiandong Mao, Zhimin Rao, Fan Zhang   +3 more
openaire   +1 more source

Trends in aerosol optical depth for cities in India

Atmospheric Environment, 2007
Abstract Recent analysis of trends in global short-wave radiation measured with pyranometers in major cities in India support a decrease in solar radiation in many of those cities since 1990. Since direct and diffuse radiation measurements include cloud effects, spring and summer dust and the variable summer monsoon rains, we concentrate in this ...
William Porch, Petr Chylek, Mavendra Dubey, Steven Massie   +3 more
openaire   +1 more source

Stratospheric aerosol optical depths, 1850–1990

Journal of Geophysical Research: Atmospheres, 1993
A global stratospheric aerosol database employed for climate simulations is described. For the period 1883–1990, aerosol optical depths are estimated from optical extinction data, whose quality increases with time over that period. For the period 1850–1882, aerosol optical depths are more crudely estimated from volcanological evidence for the volume of
Makiko Sato, James E. Hansen, M. Patrick McCormick, James B. Pollack   +3 more
openaire   +1 more source