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A Hybrid Statistical-Dynamical Downscaling of Air Temperature over Scandinavia Using the WRF Model

Advances in Atmospheric Sciences 2020年第1期37卷 57-74页

作者： Jianfeng WANG Ricardo M.fonseca Kendall RUTLEDGE javier MARTÍN-TORRES Jun YU Department of Mathematics and Mathematical Statistics UmeåUniversitySE 90187UmeåSweden Group of Atmospheric Science Division of Space TechnologyDepartment of Computer ScienceElectrical and Space EngineeringLuleåUniversity of TechnologySE 97187 LuleåSweden Novia University of Applied Sciences PO BOX 6FI-65201 VaasaFinland Instituto Andaluz de Ciencias de la Tierra 18100 GranadaSpain The Pheasant Memorial Laboratory for Geochemistry and Cosmochemistry Institute for Planetary MaterialsOkayama University at MisasaTottori 682-0193Japan

An accurate simulation of air temperature at local scales is crucial for the vast majority of weather and climate *** this work,a hybrid statistical–dynamical downscaling method and a high-resolution dynamical-only downscaling method are applied to daily mean,minimum and maximum air temperatures to investigate the quality of localscale estimates produced by *** two downscaling approaches are evaluated using station observation data obtained from the Finnish Meteorological Institute over a near-coastal region of western *** dynamical downscaling is performed with the Weather Research and Forecasting(WRF)model,and the statistical downscaling method implemented is the Cumulative Distribution Function-transform(CDF-t).The CDF-t is trained using 20 years of WRF-downscaled Climate Forecast System Reanalysis data over the region at a 3-km spatial resolution for the central month of each *** performance of the two methods is assessed qualitatively,by inspection of quantile-quantile plots,and quantitatively,through the Cramer-von Mises,mean absolute error,and root-mean-square error *** hybrid approach is found to provide significantly more skillful forecasts of the observed daily mean and maximum air temperatures than those of the dynamical-only downscaling(for all seasons).The hybrid method proves to be less computationally expensive,and also to give more skillful temperature forecasts(at least for the Finnish near-coastal region).

关键词： WRF air temperature Cumulative Distribution Function-transform hybrid statistical–dynamical downscaling,model evaluation Scandinavian Peninsula

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Encapsulation of Glycosides from Extract Plantago Major in ZnO Matrices by Sol-Gel

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材料科学与工程（中英文A版） 2015年第3期5卷 159-163页

作者： javier Aguila Rosas Albino Moreno Rodriguez Alfonso D. Diaz fonseca Alan E. Aguilar Aguilar Carmen M. Atzin Macedo Veronica Santander Vazquez Claudia Santander Vazquez Efrain Rubio Rosas Lilian A. Moreno Rodriguez Chemistry Department Faculty of Chemistry Science Benemerita Universidad Autonoma de Puebla C.U. Colonia San Manuel.Puebla 72570 Mexico Faculty of Chemical Engineering Benemerita Universidad Autonoma de Puebla C.U. Colonia San Manuel. Puebla 72570.Mexico Academic entailment Center and technology transfer Benemerita Universidad Autonoma de Puebla C.U. Colonia San Manuel.Puebla 72570 Mexico Physics Institute Benemerita Universidad Autonoma de Puebla C.U. Colonia San Manuel. Puebla 72570 Mexico

Today burns are one of the 20 leading causes of disease, with high incidence. Males are the most affected with 52% and the age group most often is 1-4 years [1]. Therefore is necessary to provide a good choice of dressing (healing material that is painless during application) used like an aid in burns treatment, a dressing has to be cost effective, easy to use and accessible, with minimal side effects, antimicrobial and non- toxic. This investigation is focused to synthesize structures matrices of plants with activity pharmacological like chromogenic glycosides such catapol and aucubin who are presents in plantain leaves [2]. These glycosides have shown to have anti-inflammatory effects, bacteriostatic and healing in wounds and burns treatment. An important part is the characterization of the matrices by spectrophotometric analysis using UV-Visible, FTIR, XRD, SEM and EDS, showing that ZnO has a hexagonal crystal form type, the particle size is approximately of 200 nm average.

关键词：大车前氧化锌矩阵苷类溶胶提取封装凝胶

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