Browsing by Subject "Atmospheric sciences"
Now showing items 1-19 of 19
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An Investigation of the Role of Land-Atmosphere Interactions on Nocturnal Convective Activity in the Southern Great Plains
(2012)This study examines whether and how land-atmosphere interactions can have an impact on the nocturnal convection over the Southern Great Plains (SGP) through numerical simulations of an intense nocturnal mesoscale convective ... -
Detrending with Empirical Mode Decomposition (DEMD): Theory, Evaluation, and Application
(2013)Land-surface heterogeneity (LSH) at different scales has significant influence on atmospheric boundary layer (ABL) buoyant and shear turbulence generation and transfers of water, carbon and heat. The extent of proliferation ... -
Elucidating Atmospheric Turbulence Across Scales in Numerical Models: Land-Atmosphere Interaction Controls of Moist Processes
(2020)This research aims to understand the development of the atmospheric energy spectrum and energy transfer mechanisms across scales. A clear understanding of energy spectrum development and transfer mechanisms is necessary ... -
Elucidating the Space-Time Structure of Low Level Warm Season Precipitation Processes in the Southern Appalachian Mountains Using Models and Observations
(2016)Light rainfall is the baseline input to the annual water budget in mountainous landscapes through the tropics and at mid-latitudes. In the Southern Appalachians, the contribution from light rainfall ranges from 50-60% during ... -
Forcing, Precipitation and Cloud Responses to Individual Forcing Agents
(2020)Previously, we usually analyze climate responses to all the climate drivers combined. However, the climate responses to individual climate drivers are far from well-known, as it is nearly impossible to separate the climate ... -
Influence of the North Atlantic Subtropical High on Summer Precipitation over the Southeastern United States
(2014)The Southeastern United States (SE US) is one of the fastest developing regions of the nation, where summer precipitation becomes increasingly important to sustain population and economic growth. In recent decades, ... -
Land-atmosphere Interaction: from Atmospheric Boundary Layer to Soil Moisture Dynamics
(2015)Accurate modeling of land-atmosphere interaction would help us understand the persistent weather conditions and further contribute to the skill of seasonal climate prediction. In this study, seasonal variations in radiation ... -
Long-Term Ambient Ozone Exposure: Magnitude, Trends, and Impacts
(2019)Long-term exposure to ambient ozone (O3) is associated with a variety of impacts, including adverse health effects in humans (U.S. EPA 2013) and reduced yields in commercial crops (Chameides et al., 1994; Mauzerall and Wang, ... -
Magnitude and Mechanisms of Unforced Variability in Global Surface Temperature
(2016)Global mean surface air temperature (GMST) is one of the most well-known and robust measures of global climate change both contemporarily as well as through deep time. In contemporary climate science, the most often discussed ... -
Mapping the Impact of Aerosol-Cloud Interactions on Cloud Formation and Warm-season Rainfall in Mountainous Regions Using Observations and Models
(2017)Light rainfall (< 3 mm/hr) amounts to 30–70% of the annual water budget in the Southern Appalachian Mountains (SAM), a mid-latitude mid-mountain system in the SE CONUS. Topographic complexity favors the diurnal development ... -
Novel Sensing and Inference Techniques in Air and Water Environments
(2015)Environmental sensing is experiencing tremendous development due largely to the advancement of sensor technology and wireless technology/internet that connects them and enable data exchange. Environmental monitoring sensor ... -
Quantifying and Elucidating the Physical Basis of Uncertainty in GPM-DPR Precipitation in Mountain Regions Using Multi-Frequency Observations and Models
(2019)Quantitative precipitation estimation (QPE) in mountainous regions remains a challenging task owing to its high spatial and temporal variability. Satellite-based radar observations at high resolution have the best potential ... -
Radio Remote Sensing and Imaging of Lightning
(2022)Lightning is one of the most familiar, impressive, but catastrophic natural phenomena that occur commonly on Earth. It produces perhaps the loudest sound, the most broadband radio emission, and the brightest light in the ... -
Remote measurement of ELF/VLF radio emissions by lightning and ground-based transmitters
(2017)Electromagnetic waves in the very low frequency (VLF, 3-30 kHz) and extremely low frequency (ELF, 3-3000 Hz) bands propagate extremely well in the cavity between the earth and the ionosphere with low attenuation. Because ... -
Role of Surface Evapotranspiration on Moist Convection along the Eastern Flanks of the Andes
(2014)The contribution of surface evapotranspiration (ET) to moist convection, cloudiness and precipitation along the eastern flanks of the Andes (EADS) was investigated using the Weather Research and Forecasting (ARW-WRF3.4.1) ... -
Statistical Models for Extreme Events in Atmospheric Processes
(2020)Extreme events - that is, intense events so rare to be poorly represented in historical observational records - play a fundamental role in atmospheric processes, and can have far reaching consequences ranging from impacts ... -
The Effects of Land Surface Heating and Roughness Elements on the Structure and Scaling Laws of Atmospheric Boundary Layer Turbulence
(2017)The atmospheric boundary-layer is the lowest 500-2000 m of the Earth's atmosphere where much of human life and ecosystem services reside. This layer responds to land surface (e.g. buoyancy and roughness elements) and slowly ... -
Theory and Practice in Sustainability Science: Influence of Urban Form on the Urban Heat Island and Implications for Urban Systems
(2016)As the world population continues to grow past seven billion people and global challenges continue to persist including resource availability, biodiversity loss, climate change and human well-being, a new science is required ... -
Turbulence in Natural Environments
(2015)Problems in the area of land/biosphere-atmosphere interaction, hydrology, climate modeling etc. can be systematically organized as a study of turbulent flow in presence of boundary conditions in an increasing order of complexity. ...
