SOARS Manuscripts
Papers and posters by protégés in the Significant Opportunities in Atmospheric Research (SOARS) program, dating back to the program's start in 1996.
Displaying 176–200 of 501 results
-
Data were obtained from the Global Ozone Monitoring Experiment (GOME) instrument on the European Remote Sensing 2 (ERS-2) satellite and from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) on the European Space Agency's Environmental Satellite (ENVISAT) to const…
-
Analysis of present-day and future precipitation in the southwestern United States(opens in new tab)
The southwestern U.S. is one of many regions susceptible to the effects of our changing climate system. Numerous climate phenomena, such as the North American Monsoon and Madden-Julian Oscillation, are known to correlate with precipitation and temperature variations in the Southwest. These processes… -
Gust front vs. non-gust front thunderstorms: An investigation into storm characteristics and environmental conditions(opens in new tab)
The development and propagation of a gust front is shown to be an integral part of a thunderstorm's life cycle in conceptual models and schematics. This outflow boundary has the potential to initiate new storms as well as inhibit or enhance existing storms. However, not every thunderstorm produces a… -
Program coordinators' perceptions of effective national citizen science programs and their impacts: An exploratory study(opens in new tab)
The increasing desire to engage the public in science and research has advanced citizen science as a valuable and popular means to this end. Citizen science, a process by which concerned individuals, agencies, industries or community groups collaborate to monitor, track, and respond to issues of com… -
Quantifying the role of tropospheric relative humidity on the development of tropical cyclones(opens in new tab)
The sensitivity of tropical cyclone (TC) development to environmental moisture is studied using a two-dimensional, axisymmetric model. The model is initialized with tropospheric relative humidities (RH) ranging from 0% to 100%. Generally, the moister the initial environment, the shorter the amount o… -
Understanding wind profiler observations of the stratocumulus-topped marine boundary layer(opens in new tab)
Clouds directly affect Earth's energy budget by changing the planet's albedo and the balance of incoming and outgoing radiation. Of particular interest are marine stratocumulus (Sc), which play an important role in this balance by typically cooling the planet. To better understand Sc and their effec… -
An analysis of the sensitivity of pavement temperature to the makeup of the road surface(opens in new tab)
Each year, adverse weather along roadways results in over 7,000 fatalities, 673,000 injuries, nearly $9.5 billion in congestion delays, and costs shipping companies $3.5 billion. Currently, decision support systems recommend road surface treatments for snow removal operations by incorporating output… -
Characterizing wind turbine inflow and wakes through comparison of SODAR and met tower observations--A part of TWICS: The turbine wake inflow characterization study(opens in new tab)
Wind offers an inexhaustible domestic energy source with minimal greenhouse gas emissions. To maximize energy generation from wind turbines it is essential to understand the influence of inflow conditions and wakes on wind turbine energy production. In accordance with this goal, the TWICS field camp… -
Comparison of monoterpene oil composition and volatile emissions from ponderosa and Austrian pine(opens in new tab)
Monoterpenes (C₁₀H₁₆) are volatile organic compounds (VOCs) naturally emitted into the atmosphere from vegetation, especially flowering plants and conifers. VOCs play a role in controlling atmospheric chemistry and they participate in the formation of air pollutants, such as ozone. Monoterpene emiss… -
Semi-empirical functions describing the response of short-lived radicals to their driving forces in the WRF/Chem Model(opens in new tab)
Short-lived radicals play a key role in the chemistry of the lower atmosphere. They oxidize pollutants, e.g., carbon monoxide (CO) and methane (CH₄), making them more soluble and therefore easier to remove by wet or dry deposition. Without these radicals, tropospheric pollution would accumulate to m… -
Influence of precipitable water vapor in and around tropical cyclones in the Caribbean: 2007-2010(opens in new tab)
This study analyzes precipitable water vapor (PWV) in and around tropical cyclones (TC) over the Caribbean region. PWV is highly variable in time and space, and it is a potential energy source for tropical cyclone development. To characterize the PWV profile in and around TCs, observations of PWV ar… -
Simulating magnetosphere-ionosphere coupling in the TIEGCM(opens in new tab)
At high latitude there is a strong coupling between the magnetosphere and ionosphere. Modeling the full coupling can require extensive computing resources, since a magnetosphere model has to be coupled to an ionosphere model. Therefore, most general-circulation models (GCMs) approximate this high-la… -
Improvement of hurricane risk perceptions: Re-analysis of a hurricane damage index and development of spatial damage assessments(opens in new tab)
Implementation of potential damage assessment tools in hurricane-prone areas is an essential aspect of communicating accurate hurricane risk information. Several indices currently exist (e.g., Saffir-Simpson Hurricane Wind Scale) that effectively communicate storm strength; however, they are unable … -
Climatology of stability indexes for Cincinnati, Ohio(opens in new tab)
Between January 2011 and August 2011, three of the top five worst tornado outbreaks in U.S. history occurred. Some may hypothesize that this is due to climate change. To test this theory, the climate normals of possible severe thunderstorm days in the Cincinnati Metropolitan area were examined. This… -
Storm duration analysis using TITAN(opens in new tab)
The Southeast Queensland (SEQ) region of Australia has been affected by drought conditions and critical water shortages in recent years. The Queensland Cloud Seeding Research Program (QCSRP) was conducted to assess the viability of using hygroscopic seeding to enhance precipitation in the SEQ region… -
Model verification and analysis of intense mesoscale convective vortices at the surface: Simulation of Tropical Storm Erin 2007(opens in new tab)
While much is known about the evolution of mesoscale convective vortices (MCVs) found in the middle troposphere, less is known about the evolutions of MCVs with strong surface reflections. Over recent years, several such MCVs have impacted the central and eastern portions of the United States. While… -
The influence of environmental vertical wind shear on hurricane eye formation(opens in new tab)
Studies of tropical storms recognize eye formation as an important indicator of intensification toward a mature cyclone. However, the reason why some tropical storms form eyes while others do not is not well understood. Our goal is to identify large-scale environmental conditions that favor or inhib… -
Laboratory study of natural gas clathrate hydrates(opens in new tab)
Natural gas clathrate hydrate formation has been well studied, both in laboratory settings in in-situ. This study expanded on previous work by taking a novel approach to studying deep-sea hydrate formation by utilizing the principals of mass spectrometry and a high pressure/low temperature chamber t… -
The effects of the 8.2 ka event on the ITCZ in the tropical Atlantic(opens in new tab)
The 8.2 ka event, which occurred 8200 years before present, was a period of abrupt cooling that is recorded in multiple proxy records across the Northern Hemisphere. During this event, a cooling of 3.3°C ± 1.1°C, was estimated from Greenland ice cores and lasted about 150 years. Prior to the 8.2 ka … -
An investigation into the spatiotemporal scale of two wind ramp events in northeastern Colorado(opens in new tab)
A sudden surge or drop in wind speed, and consequently in wind power, over a brief period of time broadly defines a wind ramp (WR) event. Predicting the magnitude and timing of WR events is crucial for wind power integration into the electric grid. By exploring WR events, a better understanding of t… -
Building a new atmospheric model: Testing a nonhydrostatic dynamical core on unstructured variable resolution hexagonal C-Grids(opens in new tab)
Spherical centroidal Voronoi tessellations (SCVTs) are proving themselves a viable alternative to latitude-longitude grids for numerical weather prediction but require the development of new numerical schemes. SCVT-based variable-resolution grids are another area of research interest which can help … -
Interactions between the Pacific decadal oscillation, North Atlantic oscillation, and arctic black carbon(opens in new tab)
Rapid melting of Arctic ice presents a significant positive forcing on the global climate system, highlighting the need to understand the forces determining melting rates. Black carbon (BC) deposition on Arctic snow and ice decreases surface albedo and increases surface and atmospheric warming, acce… -
Understanding changes in the Arctic basin sea ice mass budget as simulated by CCSM4: Implications from melt season characteristics and the surface albedo feedback(opens in new tab)
Observations reveal alarming drops in Arctic sea ice extent, and climate models project that further changes will occur that could have global repercussions. An important aspect of this change is the surface albedo feedback, driven by the contrast between the albedos of snow/ice and the open ocean. … -
Developing a hurricane damage index(opens in new tab)
Accurate information on damage caused by landfalling hurricanes benefits decision making and response of groups such as emergency managers and insurance companies. Estimates of potential damage made in advance of landfall using readily available storm information would provide useful guidance for pr… -
Verification of pre-convective environments in WRF 3-km forecasts using sounding data from the Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX 2)(opens in new tab)
The Weather Researching and Forecasting (WRF) model has been used operationally to predict weather. Previous studies have mentioned the difficulty of predicting convective weather accurately in Numerical Weather Prediction (NWP) models. The focus of this study is to examine the pre-convective enviro…