%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Martinez, J. A.
%A Junquas, Clémentine
%A Bozkurt, D.
%A Viale, M.
%A Fita, L.
%A Trachte, K.
%A Campozano, L.
%A Arias, P. A.
%A Boisier, J. P.
%A Condom, Thomas
%A Goubanova, K.
%A Pabón-Caicedo, J. D.
%A Poveda, G.
%A Solman, S. A.
%A Sörensson, A. A.
%A Espinoza, Jhan-Carlo
%T Recent progress in atmospheric modeling over the Andes - part I : review of atmospheric processes
%D 2024
%L fdi:010092141
%G ENG
%J Frontiers in Earth Science
%K atmospheric modeling ; Andes ; complex terrain ; mountain hydroclimate ; mesoscale meteorology
%K AMERIQUE DU SUD ; ANDES
%M ISI:001362035000001
%P 1427783 [23 ]
%R 10.3389/feart.2024.1427783
%U https://www.documentation.ird.fr/hor/fdi:010092141
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2025-01/010092141.pdf
%V 12
%W Horizon (IRD)
%X The Andes is the longest mountain range in the world, stretching from tropical South America to austral Patagonia (12 degrees N-55 degrees S). Along with the climate differences associated with latitude, the Andean region also features contrasting slopes and elevations, reaching altitudes of more than 4,000 m. a.s.l., in a relatively narrow crosswise section, and hosts diverse ecosystems and human settlements. This complex landscape poses a great challenge to weather and climate simulations. The interaction of the topography with the large-scale atmospheric motions controls meteorological phenomena at scales of a few kilometers, often inadequately represented in global (grid spacing similar to 200-50 km) and regional (similar to 50-25 km) climate simulations previously studied for the Andes. These simulations typically exhibit large biases in precipitation, wind and near-surface temperature over the Andes, and they are not suited to represent strong gradients associated with the regional processes. In recent years (similar to 2010-2024), a number of modeling studies, including convection permitting simulations, have contributed to our understanding of the characteristics and distribution of a variety of systems and processes along the Andes, including orographic precipitation, precipitation hotspots, mountain circulations, gravity waves, among others. This is Part I of a two-part review about atmospheric modeling over the Andes. In Part I we review the current strengths and limitations of numerical modeling in simulating key atmospheric-orographic processes for the weather and climate of the Andean region, including low-level jets, downslope winds, gravity waves, and orographic precipitation, among others. In Part II, we review how climate models simulate surface-atmosphere interactions and hydroclimate processes in the Andes Cordillera to offer information on projections for land-cover/land-use change or climate change. With a focus on the hydroclimate, we also address some of the main challenges in numerical modeling for the region.
%$ 021 ; 020