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Composite mesoscale environmental conditions influencing tornado frequencies...
Spatial patterns of tropical cyclone tornadoes (TCTs), and their relationship to patterns of mesoscale predictors within U.S. landfalling tropical cyclones (LTCs) are...- publication PDF
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A role for the equatorial undercurrent in the ocean dynamical thermostat
Reconstructions of sea surface temperature (SST) based on instrumental observations suggest that the equatorial Pacific zonal SST gradient has increased over the twentieth...- publication PDF
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Airborne measurements of oxygen concentration from the surface to the lower...
We have developed in situ and flask sampling systems for airborne measurements of variations in the O-2/N-2 ratio at the part per million level. We have deployed these...- publication PDF
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Inferring the global cosmic dust influx to the Earth's atmosphere from lidar...
Estimates of the global influx of cosmic dust are highly uncertain, ranging from 0.4-110ât/d. All meteoric debris that enters the Earth's atmosphere is eventually transported...- publication PDF
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Signature of extended solar cycles as detected from Ca II K synoptic maps of...
In recent years there has been a resurgence of the study of extended solar cycles (ESCs) through observational proxies mainly in extreme ultraviolet. But most of them are...- publication PDF
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A Survey of Difference Methods for Non-Steady Fluid Dynamics
Several finite-difference approximations to the hyperbolic equations of fluid dynamics are described, and their qualities assessed. They include the schemes normally used and,...- publication PDF
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Comparison of AMIE-modeled and Sondrestrom-measured joule heating: A study...
Joule heating by high-latitude ionospheric electric fields is thought to be underestimated by models, and it has been conjectured that the source of the underestimation is...- publication PDF
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Fire disturbance and climate change: Implications for Russian forests
Change in the Russian boreal forest has the capacity to alter global carbon and climate dynamics. Fire disturbance is an integral determinant of the forest's composition and...- publication PDF
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Assessing climate change impacts on live fuel moisture and wildfire risk...
Live fuel moisture content (LFMC) plays a critical role in wildfire dynamics, but little is known about responses of LFMC to multivariate climate change, e.g., warming...- publication PDF
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Validation of satellite formaldehyde (HCHO) retrievals using observations...
Formaldehyde (HCHO) has been measured from space for more than 2 decades. Owing to its short atmospheric lifetime, satellite HCHO data are used widely as a proxy of volatile...- publication PDF
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Understanding the influence of assimilating subsets of enhanced atmospheric...
Recent studies have shown that assimilating enhanced satellite-derived atmospheric motion vectors (AMVs) has improved mesoscale forecast of tropical cyclones (TC) track and...- publication PDF
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Variability in HDO/HâO abundance ratios in the tropical tropopause layer
The dehydration of air in the tropical tropopause layer (TTL) and mechanisms for the entry of water vapor into the stratosphere are investigated by an analysis of ACE-FTS...- publication PDF
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Shapes and Fall Orientations of Ice Particle Aggregates
Testing the often-made assumption that ice particle aggregates (snowflakes) are well represented by oblate spheroids, ellipsoid fits are applied to aggregate images. An...- publication PDF
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Mathematical and physical ideas for climate science
The climate is a forced and dissipative nonlinear system featuring nontrivial dynamics on a vast range of spatial and temporal scales. The understanding of the climate's...- publication PDF
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On the occurrence of hollow bullet rosette- and column-shaped ice crystals...
Cirrus clouds in mid- and high latitudes are frequently composed of bullet rosette- and column-shaped ice crystals, which can have hollow ends. Bullet rosette-shaped ice...- publication PDF
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A case study of observed and modeled barrier flow in the Denmark Strait in May 2015
Mesoscale barrier jets in the Denmark Strait are common in winter months and have the capability to influence open ocean convection. This paper presents the first detailed...- publication PDF
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Eddy covariance VOC emission and deposition fluxes above grassland using PTR-TOF
Eddy covariance (EC) is the preferable technique for flux measurements since it is the only direct flux determination method. It requires a continuum of high time resolution...- publication PDF
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Evolution of anthropogenic and biomass burning emissions of air pollutants...
Several different inventories of global and regional anthropogenic and biomass burning emissions are assessed for the 1980-2010 period. The species considered in this study are...- publication PDF
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Diurnal preconditioning of subtropical coastal convective storm environments
Boundary layer evolution in response to diurnal forcing is manifested at the mesobeta and smaller scales of the atmosphere. Because this variability resides on subsynoptic...- publication PDF
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Summer Fellowship in Scientific Computing / Computing Facility Summer 1977
This represents a collection of papers written by graduate students participating in the 1977 Summer Fellowship Program in Scientific Computing. Included are brief descriptions...- publication PDF
