Logo image
Ocean Atmosphere Oscillations and United States Hydroclimate Variability
Thesis   Open access

Ocean Atmosphere Oscillations and United States Hydroclimate Variability

Devin Immke
University of West Florida Libraries
Master of Science (MS), University of West Florida
Summer 2022

Metrics

90 File views/ downloads
144 Record Views

Abstract

Drought causes freshwater deficits that put strain on many areas of the US. Certain areas such as the Midwest may experience greater risk of damages because of vulnerabilities such as agricultural processes or expanding population (Angel, 2006). Previous research has correlated summertime drought in the Midwest, along with other US regions, to specific low-frequency ocean atmosphere oscillations. In this study, we identified nine regions of low-frequency summer drought variability in the US using principal component analysis. Using bivariate correlation and the bootstrapping technique, we found that no drought region is significantly correlated to any of the individual oscillations investigated. Using PDSI and oscillation index data, maps were created to spatially represent the individual influence that each index has across the US. Pacific and Atlantic modes of influence on drought across the country were also spatially represented to better understand how multiple indices impact one another and influence US drought.
pdf
Ocean Atmosphere Oscillations and United States Hydroclimate Variability1,003.93 kBDownloadView
Preprint Thesis pdf Open Access

Details

Logo image