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典型文献
Numerical Simulations of a Florida Sea Breeze and Its Interactions with Associated Convection: Effects of Geophysical Representation and Model Resolution
文献摘要:
The Florida peninsula in the USA has a frequent occurrence of sea breeze (SB) thunderstorms. In this study, the numerical simulation of a Florida SB and its associated convective initiation (CI) is simulated using the mesoscale community Weather Research and Forecasting (WRF) model in one-way nested domains at different horizontal resolutions. Results are compared with observations to examine the accuracy of model-simulated SB convection and factors that influence SB CI within the simulation. It is found that the WRF model can realistically reproduce the observed SB CI. Differences are found in the timing, location, and intensity of the convective cells at different domains with various spatial resolutions. With increasing spatial resolution, the simulation improvements are manifested mainly in the timing of CI and the orientation of the convection after the sea breeze front (SBF) merger into the squall line over the peninsula. Diagnoses indicate that accurate representation of geophysical variables (e.g., coastline and bay shape, small lakes measuring 10-30 km2), better resolved by the high resolution, play a significant role in improving the simulations. The geophysical variables, together with the high resolution, impact the location and timing of SB CI due to changes in low-level atmospheric convergence and surface sensible heating. More importantly, they enable Florida lakes (30 km2 and larger) to produce noticeable lake breezes (LBs) that collide with the SBFs to produce CI. Furthermore, they also help the model reproduce a stronger convective squall line caused by merging SBs, leading to more accurate locations of postfrontal convective systems.
文献关键词:
作者姓名:
Nessa HOCK;Feimin ZHANG;Zhaoxia PU
作者机构:
Department of Atmospheric Sciences,University of Utah,Salt Lake City,Utah 84112,USA;Air Force Institute of Technology,Wright-Patterson Air Force Base,Ohio 45433,USA
引用格式:
[1]Nessa HOCK;Feimin ZHANG;Zhaoxia PU-.Numerical Simulations of a Florida Sea Breeze and Its Interactions with Associated Convection: Effects of Geophysical Representation and Model Resolution)[J].大气科学进展(英文版),2022(05):697-713
A类:
Breeze,thunderstorms,squall,breezes,SBFs,postfrontal
B类:
Numerical,Simulations,Florida,Sea,Its,Interactions,Associated,Convection,Effects,Geophysical,Representation,Model,Resolution,peninsula,USA,has,frequent,occurrence,this,study,numerical,its,associated,convective,initiation,simulated,using,mesoscale,community,Weather,Research,Forecasting,WRF,model,one,way,nested,domains,different,horizontal,resolutions,Results,compared,observations,examine,accuracy,convection,factors,that,influence,within,found,realistically,reproduce,observed,Differences,timing,intensity,cells,various,spatial,With,increasing,improvements,manifested,mainly,orientation,after,merger,into,over,Diagnoses,indicate,accurate,representation,geophysical,variables,coastline,bay,shape,small,lakes,measuring,km2,better,resolved,by,high,play,significant,role,improving,simulations,together,impact,due,changes,low,level,atmospheric,convergence,surface,sensible,heating,More,importantly,they,enable,larger,noticeable,LBs,collide,Furthermore,also,help,stronger,caused,merging,SBs,leading,locations,systems
AB值:
0.532475
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