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.
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Showing 1 to 7 of 7 for “"El Niño/La Niña"”.
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Teleconnections between seasonal rainfall in coastal Tanzania and Enso
The modulation of Tanzanian coastal rainfall variability with the El Nino/Southern oscillation (ENSO), the largest known mode of Southern Hemisphere climatic variation is examined. A rainfall index was formulated from variable Tanzanian coastal stations and used to identify the rainfall …
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Analysis of Extreme Reversals in Seasonal and Annual Precipitation Anomalies Across the United States, 1895-2014
As population and urbanization increase across the United States, the effects of natural hazards may well increase, as extreme events would increasingly affect concentrated populations and the infrastructure upon which they rely. Extreme precipitation is one natural hazard that could stress …
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The relationship between ENSO, seasonal rainfall, and circulation patterns in South Africa
Relationships between the El Niño-Southern Oscillation phenomenon (ENSO), seasonal rainfall, and atmospheric circulation patterns at the 1000 hPa and 500 hPa levels are investigated. Firstly, correlations between early-summer (October to December), late-summer (January to March) rainfall over South …
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INVESTIGATION OF TRACER GAS VARIABILITY FROM OBSERVATIONS AND MODELS
… investigated utilizing in-situ measurements, satellite retrievals, and model simulations. In the tropical region, using Atmospheric Infrared Sounder (AIRS) mid-tropospheric CO2 retrievals led to the discovery of a signal with a periodicity of around two years, which was found to be related to the …
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Phytoplankton dynamics in the northeast subarctic Pacific during the 1998 El Niño, the 1999 La Niña and 2000 with special consideration to the role of coccolithophores and diatoms
Phytoplankton dynamics and chemical characteristics of the euphotic zone were measured from 1998-2000 (an El Niño/La Niña cycle) at the 5 major stations along Line P. Near-shelf and offshore stations exhibited low seasonality in chlorophyll and moderate seasonality in particulate organic carbon …
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East African monsoon variability since the last glacial
… than the tropics. Especially in Africa, the availability and access to water is more crucial to existence (basic livelihoods and economic growth) than anywhere else on Earth. In East Africa, rainfall is mainly influenced by the migration of the Inter-Tropical Convergence Zone (ITCZ) and by the El …
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Investigating groundwater derived nutrient fluxes within Tauranga harbour, New Zealand
… (SGD) is one of the key pathways that connects land and ocean, delivering freshwater, nutrients, carbon, metals, and other chemical constituents to coastal waters. In New Zealand, local Māori have had a strong cultural connection to this natural process for centuries. Recently, it has been …