Results 31 to 40 of about 594 (163)

The Lagrangian particle dispersion model FLEXPART version 10.3 [PDF]

, 2019
Abstract. The Lagrangian particle dispersion model FLEXPART was in its original version in the mid-1990s designed for calculating the long-range and mesoscale dispersion of hazardous substances from point sources, such as released after an accident in a nuclear power plant.
Ignacio Pisso, Espen Sollum, Henrik Grythe, Nina Kristiansen, Massimo Cassiani, Sabine Eckhardt, Delia Arnold, Don Morton, Rona L. Thompson, Christine D. Groot Zwaaftink, Nikolaos Evangeliou, Harald Sodemann, Leopold Haimberger, Stephan Henne, Dominik Brunner, John F. Burkhart, Anne Fouilloux, Jerome Brioude, Anne Philipp, Petra Seibert, Andreas Stohl   +20 more
openaire   +1 more source

On the tuning of atmospheric inverse methods: comparisons with the European Tracer Experiment (ETEX) and Chernobyl datasets using the atmospheric transport model FLEXPART [PDF]

Geoscientific Model Development, 2020
Estimation of the temporal profile of an atmospheric release, also called the source term, is an important problem in environmental sciences. The problem can be formalized as a linear inverse problem wherein the unknown source term is optimized to ...
O. Tichý, L. Ulrych, V. Šmídl, N. Evangeliou, A. Stohl   +4 more
doaj   +1 more source

Unraveling the discrepancies between Eulerian and Lagrangian moisture tracking models in monsoon- and westerly-dominated basins of the Tibetan Plateau [PDF]

Atmospheric Chemistry and Physics
Eulerian and Lagrangian numerical moisture tracking models, which are primarily used to quantify moisture contributions from global sources to specific regions, play a crucial role in hydrology and (paleo)climatology studies on the Tibetan Plateau (TP ...
Y. Li, Y. Li, Y. Li, C. Wang, C. Wang, Q. Tang, S. Yao, B. Sun, B. Sun, H. Peng, S. Xiao, S. Xiao, S. Xiao   +12 more
doaj   +1 more source

Impact of transport model resolution and a priori assumptions on inverse modeling of Swiss F-gas emissions [PDF]

Atmospheric Chemistry and Physics, 2023
Inverse modeling is a widely used top-down method to infer greenhouse gas (GHG) emissions and their spatial distribution based on atmospheric observations.
I. Katharopoulos, I. Katharopoulos, D. Rust, D. Rust, M. K. Vollmer, D. Brunner, D. Brunner, S. Reimann, S. J. O'Doherty, D. Young, K. M. Stanley, K. M. Stanley, T. Schuck, J. Arduini, J. Arduini, L. Emmenegger, S. Henne   +16 more
doaj   +1 more source

Three-dimensional methane distribution simulated with FLEXPART 8-CTM-1.1 constrained with observation data [PDF]

Geoscientific Model Development, 2018
A Lagrangian particle dispersion model, the FLEXible PARTicle dispersion chemical transport model (FLEXPART CTM), is used to simulate global three-dimensional fields of trace gas abundance.
C. D. Groot Zwaaftink, S. Henne, R. L. Thompson, E. J. Dlugokencky, T. Machida, J.-D. Paris, M. Sasakawa, A. Segers, C. Sweeney, A. Stohl   +9 more
doaj   +1 more source

The Lagrangian particle dispersion model FLEXPART version 10.4 [PDF]

, 2020
<p>Following its release and corresponding publication in GMD, we present the Lagrangian model FLEXPART 10.4, which simulates the transport, diffusion, dry and wet deposition, radioactive decay and first order chemical reactions of atmospheric tracers.
openaire   +1 more source

A model sensitivity study of the impact of clouds on satellite detection and retrieval of volcanic ash [PDF]

Atmospheric Measurement Techniques, 2015
Volcanic ash is commonly observed by infrared detectors on board Earth-orbiting satellites. In the presence of ice and/or liquid-water clouds, the detected volcanic ash signature may be altered.
A. Kylling, N. Kristiansen, A. Stohl, R. Buras-Schnell, C. Emde, J. Gasteiger   +5 more
doaj   +1 more source

Interannual Variation of Moisture Sources in the Three-River Source Region During Rainy Season and Influencing Factors

Gaoyuan qixiang
The Three-River Source region (TRSR), located on the Qinghai-Xizang Plateau (QXP), are the source regions of Yangtze, Yellow and Lancang River, plays a critical role in water conservation and is renowned as the “Water Tower of China”.Under the background
CHEN Run, MENG Xianhong, YANG Xianyu
doaj   +1 more source

Impact of stratospheric intrusions and intercontinental transport on ozone at Jungfraujoch in 2005: comparison and validation of two Lagrangian approaches [PDF]

Atmospheric Chemistry and Physics, 2009
The particle dispersion model FLEXPART and the trajectory model LAGRANTO are Lagrangian models which are widely used to study synoptic-scale atmospheric air flows such as stratospheric intrusions (SI) and intercontinental transport (ICT).
J. Cui, M. Sprenger, J. Staehelin, A. Siegrist, M. Kunz, S. Henne, M. Steinbacher   +6 more
doaj  

Simulation and Source Analysis of Ozone Pollution in Haikou City during Autumn 2016

Gaoyuan qixiang
The WRF-Chem model (v4.4) was employed to simulate ozone (O3) concentrations in the Haikou region of Hainan Province during the autumn of 2016 (September to November), complemented by the FLEXPART-WRF model for backward trajectory analysis.The research ...
WU Zehao, HE Jianjun, WANG Jianjun
doaj   +1 more source