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Development and validation of a sodar simulator for atmospheric boundary layer characterization
(2014-05-09)
A sodar simulator capable of producing time-series data emulating sodar signals
has been developed and tested. The atmospheric elds used to populate the sodar
simulator are taken from output of a large eddy simulation ...
Forecaster Warning Decision Making with Rapidly-Updating Radar Data
(2017-12)
Phased-array radar is being considered as a potential future replacement technology for the current operational Weather Surveillance Radar 1988 Doppler system. One of the most notable differences in these weather radar ...
Recent interdecadal variations in the tropical atmosphere: Evidence and idealized GCM simulations.
(1998)
A series of model integrations, forced with different SST perturbations over the tropical central and eastern Pacific, has been performed using the ECHAM4 GCM in an attempt to simulate the spatial patterns in tropical ...
USING A LOW-ORDER MODEL TO DETECT AND CHARACTERIZE INTENSE VORTICES IN MULTIPLE-DOPPLER RADAR DATA
(2010)
A new multiple-Doppler radar analysis technique is presented for the objective detection and characterization of intense vortices. The technique consists of fitting radial wind data from two or more radars to a simple ...
Relationships between thunderstorm mesoscale circulation and tornadogenesis.
(1983)
The data show that vertical vorticity production in tornadic storms begins at the very roots of the updraft as horizontal vorticity associated with low level environmental air is tilted toward the vertical. The vertical ...
Variability of Tropical Cyclones in the Philippines
(2014-05-09)
The massive impacts of tropical cyclones (TCs) on the Philippines are well known. This study provides an improved understanding of TC activity in the country, allowing improved risk mitigation strategies that possibly can ...
4DVAR retrieval of prognostic land surface model variables.
(2004)
The major findings of the first type of retrieval are: Initial soil moisture contents as well as deep soil temperature can all be successfully retrieved, for realistic initial guess errors; the relative difficulty in ...
Exploring Tornadogenesis with High-Resolution Simulations Initialized with Real Data
(2012)
Despite large advances in our understanding of tornadogenesis over the past fifty years, a comprehensive dynamical understanding of the processes behind tornado formation remains elusive. The purpose of this dissertation ...
Sensitivities of 1-km Forecasts of Tornadic Supercells to Microphysics Parameterizations, Assimilated Radar Data, and Assimilation Techniques
(2016-05-13)
The aim of this study is to examine the impact of using five different microphysics parameterization schemes, including single-, double-, and triple-moment microphysics, in an efficient high-resolution data assimilation ...