Search
Now showing items 1-10 of 12
Timing of deglacial Atlantic meridional overturning variability from a high-resolution seawater cadmium reconstruction
(Georgia Institute of Technology, 2016-08-01)
A new, high-resolution record of benthic seawater Cd (Cdw) was generated from a Florida Straits-region sediment core. The record provides additional evidence for Cdw below modern values at this location during the Younger ...
Cloud condensation nuclei spectra: measurement techniques and ambient sampling in the southeastern United States
(Georgia Institute of Technology, 2016-08-01)
Measurements of the ability of aerosols to act as cloud condensation nuclei (CCN) continue to be necessary to improve our understanding of the interaction between aerosols and clouds. Hardware improvements to the Droplet ...
Synchrotron-based spectromicroscopic characterization of aerosol chemistry
(Georgia Institute of Technology, 2016-03-30)
X-ray fluorescence microscopy and near edge X-ray fluorescence spectroscopy were used to determine chemical properties, including the oxidation state and chemical speciation, for both individual aerosol particles and bulk ...
Geophysical and remote sensing study of terrestrial planets
(Georgia Institute of Technology, 2016-07-12)
The overarching theme of this dissertation is the study of the evolution of terrestrial planets and its effect on surface processes and planetary habitability. In many regards, planetary habitability is an enthralling yet ...
Measurements of emissions from agricultural fires and wildfires in the U.S.
(Georgia Institute of Technology, 2016-11-09)
Biomass burning (BB) produces significant amounts of trace gases and aerosol, which play important roles in atmospheric chemistry and climate. This study presents detailed airborne measurements of emissions from 15 ...
Measurement of pernitric acid and inorganic bromine species using chemical ionization mass spectrometry
(Georgia Institute of Technology, 2016-09-21)
Measurements of atmospheric trace gases is a central aspect of the study of atmospheric chemistry. It allows scientists to explore the atmosphere. Chemical ionization mass spectrometry (CIMS) has been utilized to measure ...
A concise survey of the occurrence and varying formation environments of feldspathic rocks in the southern highlands, Mars
(Georgia Institute of Technology, 2016-12-09)
Presented here, is a synthesis of previous studies that have resulted in the discovery of feldspathic material on the Martian surface through the utilization of orbital (e.g., OMEGA on Mars Express and CRISM on MRO) and ...
Interaction of Energetic Solar Plasma with the Hermean Magnetosphere during Nominal and ICME Conditions
(Georgia Institute of Technology, 2016-05-23)
This dissertation combines work done in modeling plasma interactions in
Mercury's near-space environment with MESSENGER observations to create new tools that can be used to further analyze the interactions between the solar ...
The development and utilization of a new droplet freezing assay
(Georgia Institute of Technology, 2016-12-08)
A droplet freezing assay (DFA) was developed for the testing of ice nucleation of various atmospheric particles. The primary focus within this thesis is on the development, calibration, and testing of bacterial samples; ...
The planetary scale circulation of the upper tropical troposphere and its influence on tropical weather
(Georgia Institute of Technology, 2016-11-07)
Through observational analyses, we suggest that the upper tropospheric potential vorticity (PV) field has an effect on the lower troposphere during the South Asian monsoon. We show that the variability of the upper ...