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Evershed and counter-evershed flows in sunspot MHD simulations
There have been a few reports in the literature of counter-Evershed flows observed in well-developed sunspot penumbrae, i.e., flows directed toward the umbra along penumbral...- publication PDF
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The GEWEX Water Vapor Assessment: Overview and introduction to results and...
To date, a large variety of water vapour data records from satellite and reanalysis are available. It is key to understand the quality and uncertainty of these data records in...- publication PDF
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Mechanisms influencing cirrus banding and aviation turbulence near a...
Mechanisms supporting a cold-season aviation turbulence outbreak over the northwest Atlantic Ocean and adjacent coastal regions of North America are investigated using high-...- publication PDF
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Along-coast features of bora-related turbulence
The along-coast, offshore turbulence structure of the Bora flow that occurred on 7 November 1999 during the Mesoscale Alpine Programme (MAP) Intensive Observation Period 15 is...- publication PDF
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Statistical analysis of Equatorial Plasma Bubbles climatology and multi-day...
This study develops a new Bubble Index to quantify the intensity of 2-D postsunset equatorial plasma bubbles (EPBs) in the American/Atlantic sector, using Global-scale...- publication PDF
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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