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Supercell Predictability: Exploring Ensemble Sensitivity to Initial Condition Spread
(2017-05-12)
The sensitivity of full-physics ensemble forecasts of supercells to initial condition (IC) uncertainty is investigated. The motivation for the study largely stems from the NOAA Warn-on-Forecast (WoF) program, where the ...
The Influence of Urban Form and Vegetation on Near-Source Dispersion in a Realistic Urban Canopy
(2019-12)
The atmospheric boundary layer controls many interactions within the troposphere from larger scale atmospheric features to land-atmospheric interactions. The urban boundary layer is the layer above an urban area that is ...
Synoptic and Local Influences on a Summertime, Long-Lived, Mixed-Phase Cloud Event Over Summit, Greenland
(2016-08-12)
Long-lived, Arctic mixed-phase clouds play a crucial role in modulating the surface energy balance over the Greenland Ice Sheet. However, due to temporally and spatially inconsistent observations, little is known about the ...
Global Large-Scale Stratosphere-Troposphere Exchange in Modern Reanalyses
(2016-08-12)
Stratosphere-troposphere exchange (STE) has important and signi cant impacts
on the chemical and radiative properties of the upper troposphere and lower stratosphere.
This study presents a 15-year climatology of global ...
Bridging the NASA Global Precipitation Measurement and Soil Moisture Active Passive Missions: Variability of Microwave Surface Emissivity from both In-situ and Remote Sensing Perspectives
(2016-08-12)
The overland precipitation retrievals from satellite passive microwave (PMW) radiometer such as the Global Precipitation Mission (GPM) microwave imager (GMI) suffer from the contamination of observed brightness temperatures ...
SEVERE HAIL DETECTION USING REMOTE SENSING OBSERVATIONS AND AN EVALUATION OF THE ABOVE ANVIL CIRRUS PLUME FOR SEVERE WEATHER DETECTION
(2018-12-14)
This thesis undergoes a comprehensive comparative analysis to address two main objectives: a) Thoroughly assess available radar, satellite, and lightning based products’ ability to identify hail events and size, and b) ...
Atmospheric Conditions Preceeding Very Rapid Sea Ice Loss Events
(2019)
Even though the observed amplified warming trend in the Arctic region is well-established in theory through climate feedbacks and reproduced in global climate model projections, the same global climate models underestimate ...
A Tale of Two Mesovortices: Analysis of a Simulated Severe MCS Observed By PECAN on 5-6 July 2015
(2017-07)
Understanding and forecasting nocturnal thunderstorms and their hazards remain elusive goals. To this end, an expansive array of fixed and mobile observing systems were deployed in the summer of 2015 for the Plains Elevated ...