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Stratospheric and mesospheric data assimilation: the role of middle atmospheric dynamics
(Springer, 2016)
The middle atmosphere refers to the stratosphere and mesosphere and features dynamics and circulationsthat are fundamentally different from those of the troposphere. The large-scale meridional circulations inthe middle ...
The Role of Gravity Wave Drag Optimization in the Splitting of the Antarctic Vortex in the 2002 Sudden Stratospheric Warming
(American Geophysical Union, 2018-07)
The impact of gravity wave drag on the Antarctic sudden stratospheric warming (SSW) in 2002 is examined through a mechanistic middle atmosphere model combined with a variational data assimilation system. Significant ...
Report on the Regional WCRP/SPARC Workshop with focus on the Southern Hemisphere and South America
(WCRP, 2013-07)
From 26-27 November 2012 the Workshop on Southern Hemisphere and South American Climate was held in Buenos Aires, Argentina, back-to-back with the SPARC SSG Meeting, hosted by the “Centro de Investigaciones del Mar y la ...
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 ...
Estimation of optimal gravity wave parameters for climate models using data assimilation
(John Wiley & Sons Ltd, 2011-09)
There is a current need to constrain the parameters of gravity wave drag schemes in climate models using observational information instead of tuning them subjectively. In this work, an inverse technique is developed using ...
Impact of chemical mechanisms and local emission inventories in the simulation of O3 and CO concentrations using WRF-Chem.
(Universidad Nacional de ColombiaManizales - Ingeniería y Arquitectura - Maestría en Ingeniería - Ingeniería QuímicaDepartamento de Ingeniería QuímicaFacultad de Ingeniería y ArquitecturaManizales, ColombiaUniversidad Nacional de Colombia - Sede Manizales, 2022)
The ability of the Weather Research and Forecasting model couple with chemistry (WRF-Chem) to accurately represent the atmospheric processes depends on the accuracy of the input information and the adequate model configuration ...