WRF Forecasts of Great Plains Nocturnal Low-Level Jet-Driven MCSs. Part I: Correlation between Low-Level Jet Forecast Accuracy and MCS Precipitation Forecast Skill
نویسندگان
چکیده
منابع مشابه
Recurrent Supersynoptic Evolution of the Great Plains Low-Level Jet
The evolution of supersynoptic (i.e., pentad) Great Plains low-level jet (GPLLJ) variability, its precipitation impacts, and large-scale circulation context are analyzed in the North American Regional Reanalysis (NARR)—a high-resolution precipitation-assimilating dataset—and the NCEP–NCAR reanalysis. The analysis strategy leans on the extended EOF technique, which targets both spatial and tempo...
متن کاملVariability of the Great Plains Low-Level Jet: Large Scale Circulation Context and Hydroclimate Impacts
Title of Document: VARIABILITY OF THE GREAT PLAINS LOW-LEVEL JET: LARGE SCALE CIRCULATION CONTEXT AND HYDROCLIMATE IMPACTS Scott J. Weaver, Doctor of Philosophy, 2007 Directed By: Professor Sumant Nigam, Department of Atmospheric and Oceanic Science Variability of the Great Plains Low-Level Jet (GPLLJ) is analyzed from the perspective of larger-scale, lower-frequency influences and regional hyd...
متن کاملThe Seasonality of the Great Plains Low-Level Jet and ENSO Relationship
The Caribbean and Great Plains low-level jets of the Intra-Americas Seas serve as an important source of moisture for adjacent land and oceanic regions. The Caribbean low-level jet (CLLJ) transports moisture from the tropical Atlantic into the IntraAmericas Seas, which is further transferred over to the continental United States by the Great Plains Low-Level Jet (GPLLJ). Thus, the GPLLJ acts as...
متن کاملOn the Role of Sloping Terrain in the Forcing of the Great Plains Low-Level Jet
The summertime Great Plains low-level jet (LLJ) has been the subject of numerous investigations during the past several decades. Characteristics of the LLJ include nighttime development of a pronounced wind maximum of typically 15–20 m s at levels 300–800 m above the surface and a clockwise rotation of the wind maximum during the course of the night. Maximum frequency of occurrence of the LLJ i...
متن کاملThe changing influence of El Niño on the Great Plains low-level jet
This study finds that the El Niño influences on the summer Great Plains low-level jet (GPLLJ) are different for the Central Pacific (CP) and Eastern Pacific (EP) types during their decaying phases. While the CP El Niño induces negative sea level pressure anomalies over the Gulf of Mexico to drive anomalous northerly winds weakening the GPLLJ, the EP El Niño intensifies theGPLLJ by inducing anom...
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ژورنال
عنوان ژورنال: Weather and Forecasting
سال: 2016
ISSN: 0882-8156,1520-0434
DOI: 10.1175/waf-d-15-0151.1