منابع مشابه
Operation of a Mobile Wind Profiler In Severe Clutter Environments
Wind profiling radars have been in use since the 1970s (Green et al. 1979). They are now being used with increasing frequency in operational meteorology under a wide range of conditions. One limitation to operation at many sites is contamination from ground and intermittent clutter and radio frequency interference (RFI). Currently, wind profiler radars must be deployed at locations with a minim...
متن کاملMean wind in convective turbulence of mercury.
The large-scale circulation, often called "wind," in the confined thermal turbulence of mercury is studied experimentally. The instantaneous velocity profile at 128 points is directly measured using ultrasonic velocimetry. The periodic velocity oscillation is observed in the case of the aspect-ratio Gamma = 1,2 but not in Gamma = 0.5. Its peak frequency is scaled by f(c) proportional Ra(gamma(c...
متن کاملThe Statistical Severe Convective Risk Assessment Model
This study introduces a system that objectively assesses severe thunderstormnowcast probabilities based on hourly mesoscale data across the contiguous United States during the period from 2006 to 2014. Previous studies have evaluated the diagnostic utility of parameters in characterizing severe thunderstorm environments. In contrast, the present study merges cloud-to-ground lightning flash data...
متن کامل- 1 - Severe Convective Mesosystems in New England
Title: Severe Convective Mesosystems in New England Author: James Elbert Kester Submitted to the Department of Meteorology on February 5, 1974 in partial fulfillment of the requirements for the degree of Master of Science. This study of convection over New England is divided into two parts. Part I is a search for a consistent mesoscale pressure pattern associated with severe convective storms o...
متن کاملEstimating Wind Speeds of Convective Storms from Tree Damage
In much of the central and eastern United States, tree damage is typically the most common damage indicator available to National Weather Service meteorologists estimating wind speeds from convective storms. Unfortunately, most meteorologists have little or no formal training in the susceptibility of trees to high winds, and the Enhanced Fujita scale does not address many of the various factors...
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ژورنال
عنوان ژورنال: Weather and Forecasting
سال: 2006
ISSN: 1520-0434,0882-8156
DOI: 10.1175/waf931.1