Browsing OU - Theses by Author "Zhang, Guifu"
Now showing items 1-8 of 8
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Analysis of Polarimetric Radar Downburst Precursors Using Automated Storm Identification and Tracking
Gibson, Maci (2023-12-15)Strong thunderstorm winds produced by downbursts pose a threat to life, property, and aviation, yet they remain challenging to predict in advance. Current operational understanding of radar-based downburst precursors ... -
A correlation-based Inversion Method for Aerosol Property (CIMAP) Retrieval from AERONET Measurements
Huang, Taozhong (2021-08-05)We developed a principal-component based inversion approach – A correlation-based Inversion Method for Aerosol Property (CIMAP), to retrieve aerosol properties from AERONET measurements of aerosol optical depths (AODs) and ... -
Drop Size Distribution Retrieval from Radar Data to Enhance the Spectral Bin Classification in Detecting Icing Conditions
Lis, Nathan (2020-07-31)The emerging Federal Aviation Administration (FAA) restrictions on flight into and out of terminal airspaces (TASs) require discrimination between freezing rain, freezing drizzle, and other forms of winter precipitation ... -
Evolution of Specific Differential Phase in Squall Lines and Corresponding Lightning Channels
Zounes, Zackery (2017-08-01)Dual-polarimetric radar products have been used in observing changes and persistence of thunderstorm electric fields in relation to lightning discharges. One such product, specific differential phase (KDP), is valuable ... -
EXPERIMENTS ON ELECTROMAGNETIC LEAKAGE FROM LAPTOP COMPUTERS
Borowska, Lesya (2017-05-12)The possibility of an electromagnetic (EM) side channel attack on computers has been known since 1967. Each executed instruction/event from running a program on a computer/laptop causes an EM signal at particular frequency. ... -
Improving Drop Size Distribution Retrieval and Rain Estimation from Polarimetric Radar Data using the Deep Neural Network
Ho, Junho (2022-08)Drop size distribution (DSD) and rain rate (R) have been estimated from polarimetric radar data are now available nationwide. DSD and R are essential in understanding rain microphysics. Past studies utilized parametrized ... -
Inferring Bulk Microphysical Characteristics of Mesoscale Convective Systems Using Polarimetric Radar Observations
Handler, Shawn (2017)In 2013, the network of NEXRAD WSR-88D’s were upgraded to dual-polarization. Dual-polarization allows for the identification of particle shape, size, orientation, and concentration within a radar sample volume due to the ... -
A Microphysical Analysis of the Stratiform Rain Region of Mesoscale Convective Systems using Polarimetric Radar and In Situ Aircraft Measurements
Murphy, Amanda (2018-12-14)The benefits of using polarimetric weather radar data to infer microphysical properties of and processes within observed precipitation is becoming more widely recognized. The quasi-vertical profile (QVP) technique has ...