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A higher-order ray approximation applied to orographic gravity waves: Gaussian beam approximation
(Amer Meteorological Soc, 2011-01)
Ray techniques are a promising tool for developing orographic gravity wave drag schemes. However, the modeling of the propagation of orographic waves using standard ray theory in realistic background wind conditions usually ...
High Wave Activity Observed in Patagonia, Southern America: Generation by a Cyclone Passage over Andes Mountain Range
(Wiley, 2013-01)
The Antarctic peninsula and Patagonia region (South of South America) have recently been identified as one of the regions with the highest gravity wave activity in the world. In this work, the generation and propagation ...
High gravity-wave activity observed in Patagonia, Southern America: generation by a cyclone passage over the Andes mountain range
(Wiley, 2012-07)
The Antarctic peninsula and Patagonia region (the south of South America) have recently been identified as the regions with the highest gravity-wave activity in the world. In this work, the generation and propagation of ...
Simple model of the wave pattern in the atmosphere of a slow rotating planet due to surface irregularities
(Pergamon-Elsevier Science Ltd, 2020-05)
Recent observations show a persistent pattern on Venus surface, interpreted as a stationary wave due to the interaction of the prevailing winds with the orography of the planet. In this work we use an idealized model of ...
Orographic effects related to deep convection events over the Andes region
(Elsevier Science Inc, 2013-02)
In this work, we analyze a set of 39 storms which took place between 2006 and 2011 over the South of Mendoza, Argentina. This is a semiarid region situated at mid-latitudes (roughly between 32S and 36S) at the east of the ...
Orographic and convective gravity waves above the Alps and Andes mountains during GPS radio occultation events – a case study
(Copernicus Publications, 2017-10)
The significant distortions introduced in the measured atmospheric gravity wavelengths by soundings other than in vertical and horizontal directions, are discussed as a function of elevation angle of the sounding path and ...
Gravity wave momentum flux generation close to mid-latitude Andes in mesoscale simulations of late 20th and 21st centuries
(Elsevier, 2011-10)
Adequate representations of diverse dynamical processes in general circulation models (GCM) are necessary to obtain reliable simulations of the present and the future. The parameterization of orographic gravity wave drag ...
Estimation of gravity wave parameters to alleviate the delay in the Antarctic vortex breakup in general circulation models
(John Wiley & Sons Ltd, 2017-05-19)
The impact of optimal parameters in a non-orographic gravity wave drag parameterization on the middle atmosphere circulation of the Southern hemisphere is examined. Optimal parameters are estimated using a data assimilation ...
Mesospheric Mountain Wave Activity in the Lee of the Southern Andes
(Blackwell Publishing, 2021-04)
Gravity waves (GWs) generated by orographic forcing, also known as mountain waves (MWs) have been studied for decades. First measured in the troposphere, then in the stratosphere, they were only imaged at mesospheric ...
Limb sounders tracking topographic gravity wave activity from the stratosphere to the ionosphere around midlatitude Andes
(American Geophysical Union, 2015-10)
Several studies have shown that the surroundings of the highest Andes mountains at midlatitudes in the Southern Hemisphere exhibit gravity waves (GWs) generated by diverse sources which may traverse the troposphere and ...