Buscar
Mostrando ítems 1-10 de 233
Tropospheric and stratospheric momentum flux measurements from radar wind data collected at Jicamarca
(Elsevier, 2004-02-01)
Tropospheric and stratospheric radar wind data obtained at Jicamarca, Perú (11.95S, 76.87°W) during August 17–26, 1998 have been used to estimate the momentum flux of short-period wind fluctuations together with the ...
Mean winds and momentum fluxes over Jicamarca, Peru, during june and august 1987
(American Meteorological Society, 1992-02-20)
Data from the mesosphere-stratosphere-troposphere (MST) radar at Jicamarca, Peru, together with other available data, are used to diagnose the mean structure of winds and gravity-wave momentum fluxes from the surface to ...
On the determination of gravity wave momentum flux from GPS radio occultation data
(European Geosciences Union, 2013-11)
Global Positioning System (GPS) radio occultation (RO) is a well-established technique for obtaining global gravity wave (GW) information. RO uses GPS signals received by low Earth-orbiting satellites for atmospheric limb ...
A Method to Determine Gravity Wave Net Momentum Flux, Propagation Direction, and “Real” Wavelengths: A GPS Radio Occultations Soundings Case Study
(Wiley Blackwell Publishing, Inc, 2018-06)
Atmospheric gravity waves (GW) serve as an essential mechanism in the transport of energy and momentum flux from the low to the upper atmosphere. In the last decades satellite observations have become an important part in ...
Jicamarca radar observations of the diurnal and semidiurnal tide in the troposphere and lower stratosphere
(American Geophysical Union, 2002-04)
The mesosphere-stratosphere-troposphere (MST) radar at Jicamarca, Peru (12S, 77W), made extended (15 day or longer) observations of the horizontal and vertical winds that were used to infer the diurnal and semidiurnal ...
Determinação dos fluxos turbulentos de calor e momentum entre o oceano e a atmosfera na região sudoeste do oceano Atlântico
(Universidade Federal de Santa MariaBrasilMeteorologiaUFSMPrograma de Pós-Graduação em MeteorologiaCentro de Ciências Naturais e Exatas, 2017-08-31)
The knowledge about the mass and energy fluxes between the atmosphere and the ocean at different
regions of the planet is of utmost importance for the improvement of the weather and climate
predictions. This is mainly ...
The global distribution of gravity wave energy in the lower stratosphere derived from GPS data and gravity wave modelling: Attempt and challenges
(Elsevier, 2007-12)
Five years of global temperatures retrieved from radio occultations measured by Champ (Challenging Minisatellite Payload) and SAC-C (Satelite de Aplicaciones Cientificas-C) are analyzed for gravity waves (GWs). In order ...
Recent developments in gravity wave effects in climate models, and the global distribution of gravity wave momentum flux from observations and models
(John Wiley & Sons Ltd, 2010-07)
Recent observational and theoretical studies of the global properties of small-scale atmospheric gravity waves have highlighted the global effects of these waves on the circulation from the surface to the middle atmosphere. ...
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 ...