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Northern Hemisphere vegetation change drives a Holocene thermal maximum
The Holocene thermal maximum, a period of global warmth evident in early to mid-Holocene proxy reconstructions, is controversial. Most model simulations of the Holocene have not...- publication PDF
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Modeling of cloud microphysics: Can we do better?
Representation of cloud microphysics is a key aspect of simulating clouds. From the early days of cloud modeling, numerical models have relied on an Eulerian approach for all...- publication PDF
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Thermospheric neutral density variation during the "SpaceX" storm:...
The Starlink satellites launched on 3 February 2022 were lost before they fully arrived in their designated orbits. The loss was attributed to two moderate geomagnetic storms...- publication PDF
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Projections of future summertime ozone over the U.S.
We use a regional coupled chemistry-transport model to assess changes in surface ozone over the summertime U.S. between present and a 2050 future time period at high spatial...- publication PDF
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Decadal relationship between European blocking and the North Atlantic...
Both the positive and negative phases of the North Atlantic Oscillation (NAO⁺ and NAO⁻, respectively) and atmospheric blocking in the Euro-Atlantic sector reflect synoptic...- publication PDF
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Data-constrained MHD simulation for the eruption of a filament-sigmoid...
The separation of a filament and sigmoid is observed during an X1.4 flare on 2012 July 12 in solar active region 11520, but the corresponding change in magnetic field is not...- publication PDF
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Regional modeling of carbonaceous aerosols over Europe--focus on secondary...
In this study, an improved and complete secondary organic aerosols (SOA) chemistry scheme was implemented in the CHIMERE model. The implementation of isoprene chemistry for SOA...- publication PDF
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Ice fog in Arctic during FRAM-Ice Fog Project: Aviation and nowcasting applications
Ice fog and frost occur commonly (at least 26% of the time) in the northern latitudes and Arctic regions during winter at temperatures usually less than about –15°C. Ice fog is...- publication PDF
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Saharan dust, convective lofting, aerosol enhancement zones, and potential...
Dry aerosol size distributions and scattering coefficients were measured on 10 flights in 32 clear-air regions adjacent to tropical storm anvils over the eastern Atlantic Ocean....- publication PDF
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Assimilating vortex position with an ensemble Kalman filter
Observations of hurricane position, which in practice might be available from satellite or radar imagery, can be easily assimilated with an ensemble Kalman filter (EnKF) given...- publication PDF
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The inherent uncertainty of precipitation variability, trends, and extremes...
The approximately century-long instrumental record of precipitation over land reflects a single sampling of internal variability. Thus, the spatiotemporal evolution of the...- publication PDF
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A mixed integer genetic algorithm used in chem-bio defense applications
There are many problems in security and defense that require a robust optimization technique, including those that involve the release of a chemical or biological contaminant....- publication PDF
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Nested mesoscale-to-LES modeling of the atmospheric boundary layer in the...
Multiscale atmospheric simulations can be computationally prohibitive, as they require large domains and fine spatiotemporal resolutions. Grid-nesting can alleviate this by...- publication PDF
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Ionospheric topside diffusive flux and the formation of summer nighttime...
Ionospheric F-region electron density is anomalously higher in the evening than during the daytime on many occasions in the summer in geomagnetic mid-latitude regions. This...- publication PDF
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Study of the thermospheric and ionospheric response to the 2009 sudden...
This paper presents a study of mesosphere and low thermosphere influence on ionospheric disturbances during 2009 major sudden stratospheric warming (SSW) event. This period was...- publication PDF
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CCM2 Datasets and Circulation Statistics
This technical report documents the data findings from simulations and condensations which includes actual simulations, climatological monthly averaged sea surface temperature;...- publication PDF
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On the influence of assumed drop size distribution form on radar-retrieved...
Polarimetric radar measurements are used to retrieve drop size distributions (DSD) in subtropical thunderstorms. Retrievals are made with the single-moment exponential drop size...- publication PDF
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Swiss alpine snow pack variability: Major patterns and links to local...
The major patterns of interannual Swiss Alpine snow pack variability were determined and their relation to local and large-scale climate variability and recent trends was...- publication PDF
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The Geoscience Community Analysis Toolkit: An open development, community...
The Geoscience Community Analysis Toolkit (GeoCAT) team develops and maintains data analysis and visualization tools on structured and unstructured grids for the geosciences...- publication PDF
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Asynchronous communication in spectral-element and discontinuous Galerkin...
The scalability of computational applications on current and next-generation supercomputers is increasingly limited by the cost of inter-process communication. We implement non-...- publication PDF
