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 17 of 17 for “"Sea surface temperatures (SST)"”.
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Rapid marine cyclogenesis forecast sensitivity to high resolution sea surface temperatures during ERICA IOP-5
The influence of high resolutions sea surface temperatures (SST) on Nested Grid Model (NGM) predictions of rapid marine cyclogenesis is examined. Satellite data provides a gridded SST analysis with a resolution of 50 km. Forecasts using the operational "blended" SST analysis with a neutral …
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Long-range statistical forecasting of Korean summer precipitation
… monsoon to develop a background on current KSP research and on the relationship of KSP to climate variations. Second, we explored interannual variability of KSP using composite and correlation analyses. We found that circulation anomalies in the spring prior to the monsoon in the tropical …
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Analyzing el nino southern oscillation predictions from long-short-merm-memory models
… model’s prediction capabilities were tested with sea surface temperatures (SST), warm water volumes, and zonal winds as predictors, individually and in combinations, utilizing both monthly and daily resolution data, across a total of 11 leads. By utilizing these three variables, we examine …
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Seasonal and intra-seasonal dynamics and precursors of rainfall over northern Tanzania
… and variability of inter-annual and intra-seasonal circulation anomalies and their precursors are investigated over northern Tanzania. Area rainfall departures are computed in the period 1960-1990 and wet and dry years are identified. Northern Tanzania experiences bimodal rains centred on …
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The influence of volcanic stratospheric aerosols on interannual global climate variations
… in wind strength and corresponding increase in sea surface temperatures (SST) in the eastern tropical Pacific Ocean. The observational evidence for an association between the record of volcanic eruptions and SST and the Southern Oscillation Index (SOI, Tahiti SLP minus Darwin SLP) over the last …
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The direct implications of warming on the phenotype and underlying functional traits of marine phytoplankton
… scales. It is expected ocean warming (increasing sea surface temperatures; SST) will alter these patterns because temperature is the primary environmental control governing metabolism and growth in many phytoplankton groups. Whilst research on the effects of warming SST on biogeographical range …
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MECHANISMS FOR THE EXISTENCE OF DIAGONAL SOUTHERN HEMISPHERE CONVERGENCE ZONES
… westerlies. Further experiments show which surface boundary conditions support the SPCZ diagonal orientation. Continental configuration, orography and absolute Sea Surface Temperatures (SST) do not have a significant influence. The key boundary condition is the zonally asymmetric component …
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Sensitivity of tropical cyclones in the Southwest Indian Ocean to the topography of Madagascar
In this study, simulations from the Weather Research and Forecasting (WRF) model are used to investigate the sensitivity of tropical cyclone (TC) characteristics in the Southwest Indian Ocean (SWIO) to the presence of Madagascar topography. This is achieved through running two sensitivity …
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Coral reefs in the Anthropocene Ocean: novel insights from skeletal proxies of climate change, impacts, and resilience
… paleo-thermometer to enable monthly-resolved sea surface temperatures (SST) generation using laser ablation ICPMS. I show that laser Sr-U accurately captures CEP SST, including the frequency and amplitude of MHWs. Finally, I apply laser Sr-U to reconstruct the past 100 years of SST at Jarvis …
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On the role of warm rain clouds in the tropics
… uses TRMM Microwave Imager (TMI) brightness temperatures that have been deconvolved to the 19-GHz field-of-view (FOV) to retrieve cloud liquid water path (LWP), total precipitable water, and wind speed. Resampling the TMI measurements to a common FOV is found to decrease retrieved LWP by 30%. …
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Palaeoceanographic conditions and palaeoproductivity changes from the sub-Antarctic island South Georgia since the late deglacial, using marine micropalaeontology and geochemistry
… XRF elemental analysis, and alkenone-derived sea-surface temperatures (SST). The base of GC666 contains laminated sediments (ca. 15.2 to 14.7 cal. kyr BP) interpreted as seasonal alternations between Chaetoceros-dominated biogenic laminae formed during the spring/early summer melt, and …
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The impact of tropical sea surface temperature perturbations on atmospheric circulation over north Canada and Greenland
… the mechanisms that cause them. Remote tropical sea surface temperatures (SST) have been identified in previous studies as having contributed to the recent positive trends in surface temperature and geopotential height at 200 hPa over north Canada and Greenland (1979-2012) through poleward …
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The development of satellite derived nitrate and stratification indices for the southern Benguela ecosystem
… were created using satellite-derived surface nitrate (NO3) concentrations and the 12ºC isotherm (Iso12) depths, and used to define the ecosystem state through Margalef's Mandala (Margalef, 1978). The approach involved the development of robust algorithms using in situ data collected in …
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Geospatial Analysis of Droughts, Rice and Wheat Production, and Agrarian Vulnerability: A District-Level Study of the self-calibrated Palmer Drought Severity Index in India
… economic damages and millions of deaths. As the Sea Surface Temperatures (SST) have heated in the Indian Ocean, drought patterns across South Asia have changed; the Indian monsoon has become more volatile and less predictable. In this study, monthly self-calibrated Palmer Drought Severity Index …
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Hatchdate distributions and growth rates of anchovy (Engraulis encrasicolus) in the Southern Benguela ecosystem
… have taken place in 2000. Large areas of > 19 °C sea surface temperatures (SST) throughout the period from August to March indicated that spawning is likely to have been continuous. Conditions, especially in December-January, when upwelling was reduced because of a cessation in south-easterly …
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Variability of coastal upwelling south of Madagascar
… years of Multi-scale Ultra-high Resolution (MUR) Sea Surface Temperatures (SST) and an upwelling index is calculated. The influence of winds and ocean currents as drivers of the upwelling are investigated using satellite, in-situ observations, and a numerical model. Results reveal the presence of …
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Refinement and application of a new paleotemperature estimation technique
… developed technique for determining past sea surface temperatures (SST), based on an analysis of the unsaturation ratio of long chain C37 methyl alkenones (Uk37) produced by Prymnesiophyceae phytoplankton, has been applied to late Quaternary sediment cores. Previous studies have shown that …