Results 41 to 50 of about 1,912 (186)

An Evaluation of WRF‐Chem's Performance in Simulating PM2.5 in West African Cities

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract West Africa experiences some of the highest particulate pollution levels globally due to Saharan dust, biomass burning and urban emissions. Despite the severe health burden, air quality monitoring remains sparse. This study evaluates WRF‐Chem's performance in simulating PM2.5 levels across seven West African cities in 2021 using newly ...
Aara’L Y. Yarber, Gregory S. Jenkins
wiley   +1 more source

Aerosol Radiative Forcing: AERONET-Based Estimates

, 2012
Solar radiation is the main source of energy for the Earth-atmosphere system, and directly or indirectly, is responsible for all phenomena affecting the meteorology and climatology of this system. The variation of any component of this system affects the radiative equilibrium, resulting in, for example, changes in the temperature of the system and/or ...
García, O.E., Díaz, J.P., Expósito, F.J., Díaz, A.M., Dubovik, O., Derimian, Y.   +5 more
openaire   +3 more sources

Depolarization ratios retrieved by AERONET sun–sky radiometer data and comparison to depolarization ratios measured with lidar [PDF]

Atmospheric Chemistry and Physics, 2017
The linear particle depolarization ratios at 440, 675, 870, and 1020 nm were derived using data taken with the AERONET sun–sky radiometer at Seoul (37.45° N, 126.95° E), Kongju (36.47° N, 127.14° E), Gosan (33.29° N, 126.16° E), and Osaka (34.65° N, 135 ...
Y. Noh, D. Müller, K. Lee, K. Kim, K. Lee, A. Shimizu, S.-W. Kim, I. Sano, C. B. Park   +8 more
doaj   +1 more source

Making a Dust Source Map: Can We Build, Implement, and Learn From a Reflectance Derived Sediment Supply Map in the Unified Forecast System (UFS)?

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract Mineral dust is an important part of the climate system we live in. Dust hotspots in deserts and arid regions emit tons of dust annually, influenced by local meteorology and soil characteristics. As one of the most abundant aerosols, it is important to characterize and define the climate and human impacts of dust.
E. Faber, B. Baker, A. Rocha Lima, K. Schepanski   +3 more
wiley   +1 more source

Deriving All‐Hour Aerosol Optical Depth Over China From Automated Visibility Observations

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract All‐hour aerosol monitoring remains challenging due to limited spatiotemporal coverage of current observational systems. Here we developed a machine‐learning based framework that derives 24‐hr aerosol optical depth (AOD) from automated visibility measurements.
Zhou Yang, Hengheng Zhao, Zhaoliang Zeng, Ke Gui, Xutao Zhang, Nanxuan Shang, Yu Zheng, Lei Li, Huizheng Che   +8 more
wiley   +1 more source

Improving Aerosol Absorption Estimates Via Size‐Resolved Constraints Based on AERONET and In Situ Measurements

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Accurate aerosol particle size distribution is essential for estimating radiative forcing but is often hindered by assumptions that oversimplify more physical approximations of aerosol mixing state and size. This work performs a single‐site observational‐closure study that combines AERONET multi‐wavelength extinction and absorption retrievals,
Luoyao Guan, Jason Blake Cohen, Shuo Wang, Pravash Tiwari, Zhewen Liu, Kai Qin   +5 more
wiley   +1 more source

Depolarization Ratio Retrievals Using AERONET Sun Photometer Data [PDF]

Journal of the Optical Society of Korea, 2010
We present linear particle depolarization ratios (LPDRs) retrieved from measurements with an AERONET Sun photometer at the Gwangju Institute of Science and Technology (GIST), Korea (lTEXg$35.10^{/circ}N$l/TEXg, lTEXg$126.53^{\circ}E$l/TEXg) between 19 October and 3 November 2009.
Kyung-Hwa Lee, Detlef Muller, Young-Min Noh, Sung-Kyun Shin, Dong-Ho Shin   +4 more
openaire   +1 more source

Trend of North African Dust Storms and Potential Link to Climate Change

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract Over recent decades, North African dust storms have undergone marked variability, reflecting complex interactions between regional climate processes and environmental change. Using four decades (1984–2023) of visibility‐based observational records, we examine regional and seasonal trends in dust storm frequency across the Sahel and the Sahara,
Kolotioloma Yeo, Ayodeji Oluleye, Fidele Yoroba, Mehdi Hamidi, Yaping Shao   +4 more
wiley   +1 more source

Remote sensing of soot carbon – Part 2: Understanding the absorption Ångström exponent [PDF]

Atmospheric Chemistry and Physics, 2016
Recently, some authors have suggested that the absorption Ångström exponent (AAE) can be used to deduce the component aerosol absorption optical depths (AAODs) of carbonaceous aerosols in the AERONET database.
G. L. Schuster, O. Dubovik, A. Arola, T. F. Eck, T. F. Eck, B. N. Holben   +5 more
doaj   +1 more source

The Reflectance Distribution of Shallow Cumulus and Its Environs From High Spatial Resolution ASTER Images

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract We investigate the 1D reflectance distribution of shallow cumulus as a function of cloud size, using high‐spatial‐resolution observations from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Reflectance transects through clouds are compared between Inner Mongolia and Tropical Ocean.
Mengqi Liu, Ákos Horváth, Stefan A. Buehler, Xiangao Xia, Mirjana Sakradzija   +4 more
wiley   +1 more source