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 20 of 47 for “"Climate modeling"”.
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The importance of ocean internal variability for coupled climate modeling in the community earth system model
… been made in recent decades to diagnose how the climate of our planet is changing in response to anthropogenic greenhouse gas forcing. There are considerable risks associated with a warming climate, with possible hazards to life, property, economy, and the environment. These changes and the risks …
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Future changes in extreme events in Mozambique as simulated using the PRECIS regional climate modeling system
Future climate change is generally believed to lead to an increase in climate variability and inthe frequency and intensity of extreme events. Mozambique is well known for its occurrenceof severe weather and extreme climate events such as floods, tropical cyclones and droughts.Such events have …
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A test for a see-saw oscillation between the Amazon and Congo basins using regional climate modeling
… to study this see-saw effect through the use of climate models. Using a regional climate model (RegCM), the appearance of the oscillation was tested by converting rainforest area in one basin into two different land types, simulating drought-like climate conditions to induce additional rainfall …
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Wireless Systems for a Sustainable Future: From Battery-Free Subsea IoT to THz-Based Agriculture Monitoring
… sensing can drive significant advancements in climate and sustainability. Specifically, it shows how we can leverage diverse signals—acoustics, ultrasound, THz, and optics— in unconventional ways to unlock new capabilities in underwater climate monitoring, food safety, and disaster response. …
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On the use of multivariate statistics to validate global climate models
… those to the counterpart modes in a Global Climate Model (GCM). As a means to accomplish this, a multivariate statistical technique introduced for the first time to the atmospheric sciences, orthogonal Procrustes Target Analysis (PTA) was applied. A four dimensional analysis of the low …
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Tropical climate variability from the last glacial maximum to the present
… evaluates the nature and magnitude of tropical climate variability from the Last Glacial Maximum to the present. The temporal variability of two specific tropical climate phenomena is examined. The first is the position of the Intertropical Convergence Zone (ITCZ) in the Atlantic basin, which …
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Machine Learning for Computational Optimization
… a critical challenge for applications like climate modeling, where accurate simulations could require orders of magnitude more computing power than currently available. This limitation drives researchers to develop approximations that trade computational cost for solution quality. This …
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Aviation environmental policy effects on national- and regional-scale air quality, noise, and climate impacts
… impact on ambient noise, local air quality, and climate change. The main objective of this thesis is the continued development of a framework for examining aviation environmental policy by expanding the current modeling capability and addressing key shortcomings in decision-making practices. …
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Modeling Temperature Effects on Vector-Borne Disease Dynamics
… Although vectors are highly sensitive to climate, modeling studies tend to ignore climate effects. Here, I am interested in the arthropod small vectors that are sensitive to climate factors such as temperature, precipitation, and drought. In particular, I am looking at the effect of …
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Climate and Hydrographic Variability In the Indo-Pacific Warm Pool Over the Past 26,000 Years
… source of heat and moisture to the atmosphere. Climate modeling efforts and paleoceanographic reconstructions have shown that the hydrology of the IPWP responds to climate changes in the high latitudes on centennial to multi-millennial timescales (e.g. Stott et al., 2002; Zhang and Delworth, …
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Delineation of Surface Water Features Using RADARSAT-2 Imagery and a TOPAZ Masking Approach over the Prairie Pothole Region in Canada
… and better understanding of hydrological and climate modeling. There are numerous surface water bodies across the northern Prairie Region, making it challenging to provide near-real-time monitoring and in situ measurements of the spatial and temporal variation in the surface water area. …
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Multiscale Modeling and Simulation of Turbulent Geophysical Flows
… interest in numerical weather prediction and climate modeling as well as in numerous critical areas and industries, such as agriculture, construction, tourism, transportation, weather-related disaster management, and sustainable energy technologies. Oceanic and atmospheric flows display an …
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Resolving Terrain Effects in Borehole Temperature Profiles
… aids scientists in determining past climate changes and in understanding current climate trends. Accurate borehole temperature logs are necessary to obtain a useful temperature profile. However, as many climate workers have discovered, borehole temperature profiles can have many …
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Quantifying entrainment and dilution in numerical simulations of developing thunderstorms
… near cloud top. Past observational and numerical modeling studies have shown that in environments with significant vertical wind shear, the down-shear circulation is stronger. It has been hypothesized that greater entrainment (and thus dilution) occurs in stronger shear environments, but this …
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Tropical climate variability from the last glacial maximum to the present
… evaluates the nature and magnitude of tropical climate variability from the Last Glacial Maximum to the present. The temporal variability of two specific tropical climate phenomena is examined. The first is the position of the Intertropical Convergence Zone (ITCZ) in the Atlantic basin, which …
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Rotating convection driven by differential bottom heating and its application
… however, it may have some important use in climate modeling. For example, almost all existing box models and two-dimensional numerical models of ocean circulation use a frictional scaling law for buoyancy transport. A box model with the geostrophic scaling law is shown to be more robust to a …
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Design and Development of an RF-SoC-Based Ultra-Wideband Radar for Remote Sensing of Snow
Snow is a crucial element of Earth's climate system, making its monitoring essential for the effective management of global water resources. High-resolution snow measurements are fundamental to climate modeling, hydrology, and water resource management. Currently, global snow monitoring relies on …
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Combining Physics-based Modeling, Machine Learning, and Data Assimilation for Forecasting Large, Complex, Spatiotemporally Chaotic Systems
… properties of the true system, as desired in climate modeling. We aim to leverage two types of information in making our forecasts: incomplete scientific knowledge in the form of an imperfect forecast model, and past observations of the true system state that may be sparse and/or noisy. In …
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An origin of North American monsoon retreat biases in climate models
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-08-01
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Using Nd Isotopes to understand changes in continental weathering flux in Mid-Pennsylvanian (Desmoinesian) carbonate cycles
… parameters are one of the main drivers of climate change on the 104-105 yr time scales, however understanding the relationships between climate change on coeval marine and continental deposits is difficult due to post-depositional erosion and tectonic processes. Nd isotopes measured in …
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