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Effects of moist convection on mesoscale predictability
In a previous study by the authors, it was shown that the problematic numerical prediction of the 24-25 January 2000 snowstorm along the east coast of the United States was in...- publication PDF
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Black carbon aerosols and the third polar ice cap
Recent thinning of glaciers over the Himalayas (sometimes referred to as the third polar region) have raised concern on future water supplies since these glaciers supply water...- publication PDF
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Extinction of UV-visible radiation in wet midlatitude (maritime) snow:...
A field and modeling study of the optical properties of wet midlatitude (maritime) mountainous snowpack is presented. The snowpacks were found to have greater UV penetration...- publication PDF
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GPS Networks for Atmospheric Sensing
Phase delays induced in GPS signals by the ionosphere and neutral atmosphere can be measured with high precision simultaneously along a dozen or so GPS ray paths in the field of...- publication PDF
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Observations of near-surface wind and temperature structures and their...
The first multiyear surface meteorological observations over Dome A, the highest ice feature in the entire Antarctica continent, are analyzed to understand the surface wind,...- publication PDF
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Understanding the role of the ground surface in HONO vertical structure:...
A negative-ion proton-transfer chemical ionization mass spectrometer was deployed on a mobile tower-mounted platform during Nitrogen, Aerosol Composition, and Halogens on a Tall...- publication PDF
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An intercomparative study of the effects of aircraft emissions on surface air quality
This study intercompares, among five global models, the potential impacts of all commercial aircraft emissions worldwide on surface ozone and particulate matter (PM2.5). The...- publication PDF
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Understanding nighttime ionospheric depletions associated with sudden...
This study focuses on understanding what drives the previously observed deep nighttime ionospheric hole in the American sector during the January 2013 sudden stratospheric...- publication PDF
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Pressure-gradient forcing methods for large-eddy simulations of flows in the...
Turbulent flows over forest canopies have been successfully modeled using Large-Eddy Simulations (LES). Simulated winds result from the balance between a simplified pressure...- publication PDF
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A radar reflectivity operator with ice-phase hydrometeors for variational...
A reflectivity forward operator and its associated tangent linear and adjoint operators (together named Radar-Var) were developed for variational data assimilation (DA)....- publication PDF
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Upper mesospheric lunar tides over middle and high latitudes during sudden...
In recent years there have been a series of reported ground- and satellite-based observations of lunar tide signatures in the equatorial and low latitude ionosphere/thermosphere...- publication PDF
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Assimilation of a coordinated fleet of uncrewed aircraft system observations...
Uncrewed aircraft system (UAS) observations from the Lower Atmospheric Profiling Studies at Elevation-A Remotely-Piloted Aircraft Team Experiment (LAPSE-RATE) field campaign...- publication PDF
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Dissimilarity of scalar transport in the convective boundary layer in...
A land-surface model (LSM) is coupled with a large-eddy simulation (LES) model to investigate the vegetation-atmosphere exchange of heat, water vapour, and carbon dioxide (CO2)...- publication PDF
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Radial diffusion and MHD particle simulations of relativistic electron...
In an MHD particle simulation of the September 1998 magnetic storm the evolution of the radiation belt electron radial flux profile appears to be diffusive, and diffusion caused...- publication PDF
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MHD‐test particles simulations of moderate CME and CIR‐driven geomagnetic...
As part of the Whole Heliosphere and Planetary Interactions initiative, contrasting drivers of radiation belt electron response at solar minimum have been investigated with MHD-...- publication PDF
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New global meteoric smoke observations from SOFIE: Insight regarding...
Measurements from the Solar Occultation For Ice Experiment (SOFIE) in both hemispheres are used to characterize meteoric smoke in the mesosphere and to estimate the meteoric...- publication PDF
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The optimal state for gravity currents in shear
This study examines the lifting of sheared environmental air by gravity currents, focusing primarily on the theoretical "optimal state" in which near-surface flow is turned into...- publication PDF
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A new roughness length parameterization accounting for wind–wave (mis)alignment
Two-way feedback occurs between offshore wind and waves. However, the influence of the waves on the wind profile remains understudied, in particular the momentum transfer...- publication PDF
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Inter-annual to multi-decadal Arctic sea ice extent trends in a warming world
A climate model (CCSM4) is used to investigate the influence of anthropogenic forcing on late 20th century and early 21st century Arctic sea ice extent trends. On all timescales...- publication PDF
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On the effect of historical SST patterns on radiative feedback
We investigate the dependence of radiative feedback on the pattern of sea-surface temperature (SST) change in 14 Atmospheric General Circulation Models (AGCMs) forced with...- publication PDF