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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
An Analysis Of Surface Air Temperature Trends And Variability Along The Andes, Eric Franquist
An Analysis Of Surface Air Temperature Trends And Variability Along The Andes, Eric Franquist
Legacy Theses & Dissertations (2009 - 2024)
Climate change is difficult to study in mountainous regions such as the Andes since steep changes in elevation cannot always be resolved by climate models. However, it is important to examine temperature trends in this region as rises in surface air temperature are leading to the melting of tropical glaciers. Local communities rely on the glacier-fed streamflow to get their water for drinking, irrigation, and livestock. Moreover, communities also rely on the tourism of hikers who come to the region to view the glaciers. As the temperatures increase, these glaciers are no longer in equilibrium with their current climate and …
Evaluating Drought In The United States Using The Emissivity Difference Vegetation Index, Hanisha Hirani
Evaluating Drought In The United States Using The Emissivity Difference Vegetation Index, Hanisha Hirani
Legacy Theses & Dissertations (2009 - 2024)
As monitoring vegetation and crops becomes increasingly important due to climate change, there arises the need for a monitoring scheme that places more weight on water availability as an indication of vegetation health and vitality. The Emissivity Difference Vegetation Index (EDVI) is the first step towards that type of monitoring scheme. With the potential for diurnal studies, there are applications towards agriculture monitoring, wildfire monitoring, and much more. EDVI is a synergetic product retrieved from microwave, visible, and infrared satellite measurements, as well as reanalysis. Since microwave measurements are more sensitive to vegetation water content, EDVI has the potential to …
Interactions Between African Easterly Waves And Moist Convection, Matthew Adam Janiga
Interactions Between African Easterly Waves And Moist Convection, Matthew Adam Janiga
Legacy Theses & Dissertations (2009 - 2024)
African easterly waves (AEWs) over tropical Africa and the East Atlantic influence and are themselves influenced by moist convection. Data from the Tropical Rainfall Measuring Mission (TRMM) satellite, reanalyses, and in-situ observations are used to examine both directions of this two-way interaction.
The Motion Of Mesoscale Snowbands In Northeast U.S. Winter Storms, Jaymes Kenyon
The Motion Of Mesoscale Snowbands In Northeast U.S. Winter Storms, Jaymes Kenyon
Legacy Theses & Dissertations (2009 - 2024)
The distribution of snowfall accumulation attending winter storms is a product of both precipitation intensity and duration. Many heavy snowfall events are associated with distinct mesoscale snowbands that strongly modulate snowfall accumulation. Mesoscale snowbands are known to be favored within environments characterized by frontogenesis in the presence of weak moist symmetric or gravitational stabilities. Although the development of mesoscale snowbands often can be anticipated at 24–36-h ranges, anticipating band residence time at a fixed location remains a forecasting challenge. However, given that snowband residence time is related to characteristics of band motion, improved understanding of band motion presents an opportunity …
Solar Radiation Measurements And Their Applications In Climate Research, Bangsheng Yin
Solar Radiation Measurements And Their Applications In Climate Research, Bangsheng Yin
Legacy Theses & Dissertations (2009 - 2024)
Aerosols and clouds play important roles in the climate system through their radiative effects and their vital link in the hydrological cycle. Accurate measurements of aerosol and cloud optical and microphysical properties are crucial for the study of climate and climate change. This study develops/improves retrieval algorithms for aerosol single scattering albedo (SSA) and low liquid water path (LWP) cloud optical properties, evaluates a new spectrometer, and applies long-term measurements to establish climatology of aerosol and cloud optical properties. The following results were obtained.
Study Of Key Factors Influencing Dust Emission : An Assessment Of Geos-Chem And Dead Simulations With Observations, Kevin Scott Bartlett
Study Of Key Factors Influencing Dust Emission : An Assessment Of Geos-Chem And Dead Simulations With Observations, Kevin Scott Bartlett
Legacy Theses & Dissertations (2009 - 2024)
Mineral dust aerosols can impact air quality, climate change, biological cycles, tropical cyclone development and flight operations due to reduced visibility. Dust emissions are primarily limited to the extensive arid regions of the world, yet can negatively impact local to global scales, and are extremely complex to model accurately. Within this dissertation, the Dust Entrainment And Deposition (DEAD) model was adapted to run, for the first known time, using high temporal (hourly) and spatial (0.3°x0.3°) resolution data to methodically interrogate the key parameters and factors influencing global dust emissions. The dependence of dust emissions on key parameters under various conditions …