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Data reduction techniques for simulation, visualization and data analysis
Data reduction is increasingly being applied to scientific data for numerical simulations, scientific visualizations and data analyses. It is most often used to lower I/O and...- publication PDF
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Revisiting the hail radar reflectivity-kinetic energy flux relation by...
The retrieval of hail kinetic energy with weather radars or its simulation in numerical models is challenging because of the shape complexity and variable density of hailstones....- publication PDF
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On the sources and sinks of atmospheric VOCs: An integrated analysis of...
We apply a high-resolution chemical transport model (GEOS-Chem CTM) with updated treatment of volatile organic compounds (VOCs) and a comprehensive suite of airborne datasets...- publication PDF
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Response of the thermosphere and ionosphere to an ultra fast Kelvin wave
Ultra Fast Kelvin (UFK) waves are eastward propagating planetary waves with periods between 3 and 5 days, which are capable of penetrating into the thermosphere and ionosphere...- publication PDF
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Exploring a multi-resolution modeling approach within the shallow-water equations
The ability to solve the global shallow-water equations with a conforming, variable-resolution mesh is evaluated using standard shallow-water test cases. While our long-term...- publication PDF
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Boundary value problems for the shallow water equations with topography
Nonviscous shallow water equations with topography are considered in one spatial dimension. The aim is to find boundary conditions which are physically suitable; that is, they...- publication PDF
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Auroral electrojets variations caused by recurrent high-speed solar wind...
The IMAGE network magnetic measurements are used to investigate the response of the auroral electrojets to the recurrent high-speed solar wind streams (HSSs) during the extreme...- publication PDF
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Production and transport mechanisms of NO in the polar upper mesosphere and...
A reservoir of nitric oxide (NO) in the lower thermosphere efficiently cools the atmosphere after periods of enhanced geomagnetic activity. Transport from this reservoir to the...- publication PDF
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Tropical cyclone intensity errors associated with lack of two-way ocean...
Tropical cyclones (TCs), particularly those that are intense and/or slow moving, induce sea surface temperature (SST) reductions along their tracks (commonly referred to as cold...- publication PDF
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Computational modeling of large wildfires: A roadmap
Wildland fire behavior, particularly that of large, uncontrolled wildfires, has not been well understood or predicted. Our methodology to simulate this phenomenon use s high-...- publication PDF
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Dynamical response of Mediterranean precipitation to greenhouse gases and aerosols
Atmospheric aerosols and greenhouse gases affect cloud properties, radiative balance and, thus, the hydrological cycle. Observations show that precipitation has decreased in the...- publication PDF
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Forces in a Cable-Restrained Balloon System
This report presents a complete analysis of the forces acting on a cable-restrained balloon launch system and describes computer programs that may be used to determine optimum...- publication PDF
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Process-oriented analysis of dominant sources of uncertainty in the land carbon sink
The observed global net land carbon sink is captured by current land models. All models agree that atmospheric CO2 and nitrogen deposition driven gains in carbon stocks are...- publication PDF
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Heating of the sunlit polar cap ionosphere by reflected photoelectrons
Photoelectrons escape from the ionosphere on sunlit polar cap field lines. In order for those field lines to carry zero current without significant heavy ion outflow or cold...- publication PDF
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A genetic algorithm variational approach to data assimilation and...
Variational data assimilation methods optimize the match between an observed and a predicted field. These methods normally require information on error variances of both the...- publication PDF
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Evidence of nonlinear interaction between quasi 2 day wave and quasi-stationary wave
The nonlinear interaction between the westward quasi 2 day wave (QTDW) with zonal wave number s = 3 (W3) and stationary planetary wave with s = 1 (SPW1) is first investigated...- publication PDF
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Multivariate spatial analysis of climate change projections
The goal of this work is to characterize the annual temperature for regional climate models. Of interest for impacts studies, these profiles and the potential change in these...- publication PDF
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Observation of local tidal variability and instability, along with...
During the 9-day continuous campaign in September 2003, the Colorado State University sodium lidar observed significant short-term tidal variability in both diurnal and...- publication PDF
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Forecasted attribution of the human influence on Hurricane Florence
Changes in extreme weather, such as tropical cyclones, are one of the most serious ways society experiences the impact of climate change. Advance forecasted conditional...- publication PDF
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Hurricane Harvey links to ocean heat content and climate change adaptation
While hurricanes occur naturally, human-caused climate change is supercharging them and exacerbating the risk of major damage. Here using ocean and atmosphere observations, we...- publication PDF
