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Full-Text Articles in Social and Behavioral Sciences
Improving Summer Drought Prediction In The Apalachicola-Chattahoochee- Flint River Basin With Empirical Downscaling, John Robert Dean
Improving Summer Drought Prediction In The Apalachicola-Chattahoochee- Flint River Basin With Empirical Downscaling, John Robert Dean
Geosciences Theses
The Georgia General Assembly, like many states, has enacted pre-defined, comprehensive, drought-mitigation apparatus, but they need rainfall outlooks. Global circulation models (GCMs) provide rainfall outlooks, but they are too spatially course for jurisdictional impact assessment. To wed these efforts, spatially averaged, time-smoothed, daily precipitation observations from the National Weather Service cooperative network are fitted to eight points of 700 mbar atmospheric data from the NCEP/NCAR Reanalysis Project for climate downscaling and drought prediction in the Apalachicola-Chattahoochee-Flint (ACF) river basin. The domain is regionalized with a factor analysis to create specialized models. All models complied well with mathematical assumptions, though the …
A Comparative Study Of The Badger Pass Igneous Intrusion And The Foreland Volcanic Rocks Of The Mcdowell Springs Area, Beaverhead County, Montana: Implications For The Local Late Cretaceous Sequence Of Events, Brookie Jean Gallagher
A Comparative Study Of The Badger Pass Igneous Intrusion And The Foreland Volcanic Rocks Of The Mcdowell Springs Area, Beaverhead County, Montana: Implications For The Local Late Cretaceous Sequence Of Events, Brookie Jean Gallagher
Geosciences Theses
Intermediate igneous rocks exposed in the Badger Pass area and 3.5 km away in the McDowell Springs area of Beaverhead County, Montana, previously mapped as Cretaceous intrusive (Ki), and Cretaceous undifferentiated volcanics (Kvu) respectively, exhibit little geochemical variation. Trace element, and lead isotope analyses provide strong evidence allowing for a single source. REE patterns, obtained through ID-ICP-MS, are essentially identical. Mineral/melt Eu analyses reveal that Eu behaved predominantly as a divalent cation, refuting an earlier study asserting that trivalent Eu dominated. Data suggest rocks were formed under low oxygen activity conditions, not oxidizing conditions as previously reported. Geochemical data combined …
A Multitemporal Analysis Of Georgia's Coastal Vegetation, 1990-2005, Charles, Iii F. Breeden
A Multitemporal Analysis Of Georgia's Coastal Vegetation, 1990-2005, Charles, Iii F. Breeden
Geosciences Theses
Land and vegetation changes are part of the continuous and dynamic cycle of earth system variation. This research examines vegetation changes in the 21-county eco-region along coastal Georgia. The Advanced Very High Resolution Radiometer (AVHRR) with Normalized Difference Vegetation Index (NDVI) data is used in tandem with a Principal Component Analysis (PCA) and climatic variables to determine where, and to what extent vegetation and land cover change is occurring. This research is designed around a 16 year time-series from 1990-2005. Findings were that mean NDVI values were either steady or slightly improved, and that PC1 (Healthiness) and PC2 (Time-Change) explained …