Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"southern oscillation index (SOI)"”.
-
Paleoecological Analyses of the Late Holocene Dry Period in the Northwestern Great Basin, Nevada
… with changes in precipitation linked to the Southern Oscillation Index (SOI) and described as a dry southwest and wet northwest in the United States. Here I present a 4000-year pollen record from northwestern Nevada, investigating the potential for the Late Holocene Dry Period to conform to …
-
Analysis of Roanoke Region Weather Patterns Under Global Teleconnections
… through physical phenomena such as the El Nino-Southern Oscillation (ENSO), Artic Oscillation (AO), North Atlantic Oscillation (NAO), and the Pacific North American (PNA) pattern to synoptic-scale weather patterns and precipitation in the Roanoke, Virginia region. The first chapter describes the …
-
The influence of volcanic stratospheric aerosols on interannual global climate variations
… proposed to explain the forcing of the El Nino/Southern Oscillation (ENSO) by low-latitude volcanic stratospheric aerosols (Handler 1989). This mechanism is based on the normal global annual cycle resulting from the normal annual cycle in the distribution of incoming solar radiation. The …
-
Effects of oceanic and atmospheric phenomena on precipitation and flooding in the Manafwa River Basin
… eastern Uganda. Such phenomena are the El Niño Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD). The indices that describe ENSO and IOD are measurements of sea surface pressure and sea surface temperature conditions of the Pacific and Indian Oceans. This study compares the …
-
Hydrographic Variability on Decadal and Interdecadal Scales in the Northern Gulf of Alaska
… between tem perature and Pacific Decadal Oscillation (PDO) and the Southern OScillation Index (SOI). Spectral analyses of the hydrographic parameters and environmental parameters of PDO. upwelling (downwelling). freshwater discharge and SOI also reveal many similarities. The density …
-
Using statistical learning approaches to understand trends and variability of tornadoes across the continental United States
… Large-scale climate variables include El Niño Southern Oscillation (ENSO), Southern Oscillation Index (SOI), North Atlantic Oscillation (NAO), Pacific Decadal Oscillation (PDO), Arctic Oscillation (AO), and Atlantic Multi-decadal Oscillation (AMO). The model provides a robust way of estimating …
-
Investigating the relationships between wheat-specific rainfall characteristics, large-scale modes of climate variability and wheat yields in the Swartland region, South Africa
… yield thresholds. Three teleconnections (El Niño-Southern Oscillation [ENSO], Antarctic Oscillation [AAO] and South Atlantic sea surface temperatures [SSTs]) represented by eight climate indices (Nino 3.4 Index, Ocean Nino Index [ONI], Southern Oscillation Index [SOI], AAO index, Southern Annular …
-
Migratory connectivity and differential patterns of decline in Barn Swallow (Hirundo rustica) in North America: Potential effects of factors on breeding and wintering grounds
… but remain stable in certain areas of the southern United States. However, reasons for differential population trends and whether factors on breeding and/or wintering grounds could be causing these declines remain unclear. The main objective of this study was to investigate causes of …
-
Investigating groundwater derived nutrient fluxes within Tauranga harbour, New Zealand
… 0.43 p =<0.001) between flushing rates and the southern oscillation index (SOI) was also established, highlighting direct and indirect implications of climate on water quality by altering flushing rates, nutrient availability, storage and transport across different regions. Using these data …
-
Spatiotemporal Variability of CO2, Solar-Induced Fluorescence, And Precipitation Over the Tropical Rainforests
Tropical rainforest ecosystems change forest dynamics during the dry/fire season, transitioning from an atmospheric CO2 sink to a CO2 source. The Amazon basin, Congo basin, and the tropical Indo-Pacific play vital roles in biospheric processes, which contribute to Earth’s atmospheric CO2 …