G
Georg Grell
Researcher at National Oceanic and Atmospheric Administration
Publications - 129
Citations - 16068
Georg Grell is an academic researcher from National Oceanic and Atmospheric Administration. The author has contributed to research in topics: Weather Research and Forecasting Model & Aerosol. The author has an hindex of 43, co-authored 120 publications receiving 13614 citations. Previous affiliations of Georg Grell include Cooperative Institute for Research in Environmental Sciences & Fraunhofer Society.
Papers
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Journal ArticleDOI
Fully coupled “online” chemistry within the WRF model
Georg Grell,Steven E. Peckham,Rainer Schmitz,Stuart A. McKeen,Gregory J. Frost,William C. Skamarock,Brian Eder +6 more
TL;DR: The WRF/Chem model is statistically better skilled in forecasting O3 than MM5/Chem, with no appreciable differences between models in terms of bias with the observations, and consistently exhibits better skill at forecasting the O3 precursors CO and NOy at all of the surface sites.
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Prognostic evaluation of assumptions used by cumulus parameterizations
TL;DR: Using a spectral-type cumulus parameterization that includes moist downdrafts within a three-dimensional mesoscale model, various disparate closure assumptions are systematically tested within the generalized framework of dynamic control, static control, and feedback as discussed by the authors.
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A generalized approach to parameterizing convection combining ensemble and data assimilation techniques
Georg Grell,Dezső Dévényi +1 more
TL;DR: In this article, a new convective parameterization is introduced that can make use of a large variety of assumptions previously introduced in earlier formulations, and two methods in which ensemble and data assimilation techniques may be used to find the best value to feed back to the larger scale model.
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Evolution of ozone, particulates, and aerosol direct radiative forcing in the vicinity of Houston using a fully coupled meteorology-chemistry-aerosol model
Jerome D. Fast,William I. Gustafson,Richard C. Easter,Rahul A. Zaveri,James C. Barnard,Elaine G. Chapman,Georg Grell,Georg Grell,Steven E. Peckham,Steven E. Peckham +9 more
TL;DR: In this paper, a fully coupled meteorology-chemistry-aerosol model is used to simulate the urban-to-regional-scale variations in trace gases, particulates, and aerosol direct radiative forcing in the vicinity of Houston over a 5 day summer period.
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A scale and aerosol aware stochastic convective parameterization for weather and air quality modeling
Georg Grell,Saulo R. Freitas +1 more
TL;DR: In this paper, a convective parameterization is described and evaluated that may be used in high resolution non-hydrostatic mesoscale models as well as in modeling system with unstructured varying grid resolutions and for convection aware simulations.