Results 61 to 70 of about 594 (163)

Strong Ventilation Drives the Aerosol Pollution Receptor Center and Its Interannual Variability in Central China's Twain‐Hu Basin

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract This study investigates the unique winter phenomenon in central China's Twain‐Hu Basin where high aerosol optical depth (AOD) centers coincide with a regional near‐surface wind speed maximum. Based on multi‐decadal reanalysis data sets, satellite retrievals, ground observations, and FLEXPART‐WRF simulations, we demonstrate that strong ...
Yongqing Bai, Ling Zhang, Yujie Jiang, Tianliang Zhao, Lijuan Shen, Kai Meng, Jie Xiong, Xiaoyun Sun, Weiyang Hu, Xiefei Zhi   +9 more
wiley   +1 more source

Investigating the Large-Scale Transport of a Volcanic Plume and the Impact on a Secondary Site

Atmosphere, 2020
Volcanic plumes can be transported across vast distances and can have an impact on solar ultraviolet radiation (UVR) reaching the surface due to the scattering and absorption caused by aerosols.
David Jean Du Preez, Hassan Bencherif, Nelson Bègue, Lieven Clarisse, Rebecca F. Hoffman, Caradee Yael Wright   +5 more
doaj   +1 more source

Optical, microphysical, mass and geometrical properties of aged volcanic particles observed over Athens, Greece, during the Eyjafjallajökull eruption in April 2010 through synergy of Raman lidar and sunphotometer measurements [PDF]

Atmospheric Chemistry and Physics, 2013
Vertical profiles of the optical (extinction and backscatter coefficients, lidar ratio and Ångström exponent), microphysical (mean effective radius, mean refractive index, mean number concentration) and geometrical properties as well as the mass ...
P. Kokkalis, A. Papayannis, V. Amiridis, R. E. Mamouri, I. Veselovskii, A. Kolgotin, G. Tsaknakis, N. I. Kristiansen, A. Stohl, L. Mona   +9 more
doaj   +1 more source

A Graph Signal Processing Approach to the Characterization of Xe‐133 Atmospheric Background

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract The geopolitical context advocates for monitoring nuclear activities within an international framework. In this context, the Comprehensive Nuclear‐Test‐Ban Treaty Organization has established measurement stations, known as the International Measurement System (IMS).
M. Atiq, S. Oger, P. Achim
wiley   +1 more source

Impacts of Low‐Level Jets on Moisture Transport to the Pantanal, Brazil

International Journal of Climatology, Volume 46, Issue 3, 15 March 2026.
The moisture transports from the tropics to the subtropics by the low‐level jets (LLJs) east of the Andes crossing the Pantanal region. Four LLJs, east of the Andes, were identified and selected with correspondent Lagrangian moisture transport. The LLJ moisture source regions contribute to Pantanal (~63.5%) and precipitation increased (~30%) during LLJ
Nilson Oliveira da Silva, Ana Maria Pereira Nunes, Raquel Nieto, Milica Stojanovic, Rosmeri Porfírio da Rocha   +4 more
wiley   +1 more source

Implementación del modelo de dispersión atmosférica FLEXPART en AEMET

Acta de las Jornadas Científicas de la Asociación Meteorológica Española, 2018
En el presente trabajo se describe la implementación del modelo de dispersión FLEXPART en Aemet y sus aplicaciones.
Vaz de Jesús, Víctor, Allúe Camacho, María, Martínez Marco, Isabel   +2 more
openaire   +3 more sources

Moisture Sources and Synoptic‐Scale Controls on Wet Season Event Rainfall in Mexico City: Evidence From Stable Isotopes

Hydrological Processes, Volume 40, Issue 3, March 2026.
Precipitation stable isotopes, combined with backward air mass trajectories and synoptic meteorology analyses, revealed that rainfall in Mexico City is primarily originated from the Caribbean Sea, Gulf of Mexico and continental regions, modulated by troughs and tropical waves. Event‐scale rainfall showed strong variability in isotope compositions, with
Lyssette Elena Muñoz‐Villers, Sofía González‐Ríos, Guillermo Montero‐Martínez   +2 more
wiley   +1 more source

A New Climatology of Continentality Based on Lagrangian Air Mass Travel Times From the Ocean

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Climate classifications such as the Köppen classification have a long tradition and wide fields of application. An important classification aspect is continentality, for which we present a new metric based on Lagrangian dispersion model calculations.
Georg Brack, Marina Dütsch, Andreas Stohl   +2 more
wiley   +1 more source

Intercomparison of FLEXPART and CALPUFF dispersion models. An application over a small tropical island

Atmósfera, 2020
A typical practice in air quality modeling assessment is the intercomparison between different dispersion models results and air quality measurements at different atmospheric conditions. In this study, a comparison between the results of two Lagrangian dispersion models, the Lagrangian Particle Dispersion Model FLEXPART and the Lagrangian Puff Model ...
Anel Hernández-Garces, RAPHAËL CÉCÉ, ADRIAN FERRER, DIDIER BERNARD, ULISES JAUREGUI-HAZA, NARCISSE ZAHIBO, JOSÉ A. GONZÁLEZ   +6 more
openaire   +2 more sources

A case of transatlantic aerosol transport detected at the Schneefernerhaus Observatory (2650 m) on the northern edge of the Alps

Meteorologische Zeitschrift, 2010
An unusual peak in atmospheric aerosol particle number and mass concentration occurred on September 20 and 21, 2006 at the Schneefernerhaus (SFH) Observatory, Germany.
Wolfram Birmili, Tina Göbel, André Sonntag, Ludwig Ries, Ralf Sohmer, Stefan Gilge, Ingeborg Levin, Andreas Stohl   +7 more
doaj   +1 more source