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Solar cycle variability induced by tilt angle scatter in a Babcock-Leighton...
We present results from a three-dimensional Babcock-Leighton (BL) dynamo model that is sustained by the emergence and dispersal of bipolar magnetic regions (BMRs). On average,...- publication PDF
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The role of midlatitude mixing barriers in creating the annual variation of...
Data from the HIgh Resolution Dynamics Limb Sounder (HIRDLS), the Microwave Limb Sounder (MLS), and the Whole Atmosphere Community Climate Model (WACCM) are used to investigate...- publication PDF
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Comparisons of electromagnetic scattering properties of real hailstones and spheroids
Severe (>2.5 cm) hail causes >$5 billion in damage annually in the United States. However, radar sizing of hail remains challenging. Typically, spheroids are used to...- publication PDF
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Mesospheric wind disturbances due to gravity waves near the Antarctica Peninsula
Based on austral winter mesospheric wind observations from three closely deployed Antarctic Peninsula stations (King George Island, Palmer, and Rothera), mesospheric wind...- publication PDF
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Comparative analysis of radio occultation processing approaches based on...
We analyze and compare two approaches to processing radio occultation data: (1) canonical transform method and (2) full spectrum inversion method. We show that these methods are...- publication PDF
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The potential contribution of organic salts to new particle growth
Field and lab measurements suggest that low-molecular weight (MW) organic acids and bases exist in accumulation and nucleation mode particles, despite their relatively high...- publication PDF
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Mixed-phase clouds cause climate model biases in Arctic wintertime...
Temperature inversions are a common feature of the Arctic wintertime boundary layer. They have important impacts on both radiative and turbulent heat fluxes and partly determine...- publication PDF
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Observation of thermospheric gravity waves in the Southern Hemisphere with GOLD
The middle thermosphere from ~150 to 250 km is characterized by rapid increase in temperature with altitude and rapid ionization. The entire thermosphere is believed to be home...- publication PDF
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Effect of planetary rotation on oceanic surface boundary layer turbulence
A large-eddy simulation (LES) model is configured to investigate the effect of the horizontal (northward) component of Earth's rotation fh on upper-ocean atmosphere. oare the...- publication PDF
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Upper troposphere smoke injection from large areal fires
Large areal fires, such as those ignited following a nuclear detonation, can inject smoke into the upper troposphere and lower stratosphere. Detailed fire simulations allow for...- publication PDF
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Investigation of liquid cloud microphysical properties of deep convective...
To investigate liquid-phase (T>3 degrees C) cloud and precipitation microphysical properties within Deep Convective Systems (DCSs), eight DCS cases sampled by the University...- publication PDF
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The mysteries of Mammatus clouds: Observations and formation mechanisms
Mammatus clouds are an intriguing enigma of atmospheric fluid dynamics and cloud physics. Most commonly observed on the underside of cumulonimbus anvils, mammatus also occur on...- publication PDF
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Case Studies on Convective Storms / Case Study 3, 8 June 1976: First Echo Case
Extensive coverage by three aircraft in the inflow region of a maturing storm highlighted the investigation of 8 June 1976. The synoptic conditions supported convection of...- publication PDF
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Estimates of Cn2 from numerical weather prediction model output and...
Area-averaged estimates of Cn² from high-resolution numerical weather prediction (NWP) model output are produced from local estimates of the spatial structure functions of...- publication PDF
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Ionospheric annual asymmetry observed by the COSMIC radio occultation...
Average F2-layer electron densities at December solstice are higher than those at June solstice. This phenomenon, which is often called the F2-layer annual asymmetry, has been...- publication PDF
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Rural–urban differences in cooking practices and exposures in Northern Ghana
Key differences between urban and rural populations can influence the adoption and impacts of new cooking technologies and fuels. We examine these differences among urban and...- publication PDF
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Spatial forecast verification: Baddeley's delta metric applied to the ICP test cases
A mathematical displacement metric, Baddeley's Delta, is examined for verifying gridded forecasts against gridded observations using the Spatial Forecast Verification Methods...- publication PDF
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Object-based evaluation of a numerical weather prediction model’s...
Traditional pixel-versus-pixel forecast evaluation scores such as the critical success index (CSI) provide a simple way to compare the performances of different forecasts;...- publication PDF
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The connection between stellar granulation and oscillation as seen by the...
The long and almost continuous observations by Kepler show clear evidence of a granulation background signal in a large sample of stars, which is interpreted as the surface...- publication PDF
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On calculating deposition coefficients and aspect-ratio evolution in...
Models of ice crystal vapor growth require estimates of the deposition coefficient alpha when surface attachment kinetics limit growth and when ice crystal shape is predicted....- publication PDF