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A fully compressible nonhydrostatic deep-atmosphere equations solver for MPAS
A solver for the nonhydrostatic deep-atmosphere equations of motion is described that extends the capabilities of the Model for Prediction Across Scales-Atmosphere (MPAS-A)...- publication PDF
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Dynamo action at low magnetic Prandtl numbers: Mean flow versus fully...
We compute numerically the threshold for dynamo action in Taylor-Green (TG) swirling flows. Kinematic dynamo calculations, for which the flow field is fixed to its time average,...- publication PDF
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Persistent stratospheric warming due to 2019-2020 Australian wildfire smoke
Australian wildfires burning from December 2019 to January 2020 injected approximately 0.9 Tg of smoke into the stratosphere; this is the largest amount observed in the...- publication PDF
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Assessment of the interannual variability and influence of the QBO and...
A modified form of tracer-tracer correlations of N2O and O3 has been used as a tool for the evaluation of atmospheric photochemical models. Applying this method, monthly...- publication PDF
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Climatology of the middle atmosphere in LMDz: Impact of source-related...
Gravity wave (GW) parameterizations control the mean state and variability of the middle atmosphere in present-day climate models. The most recent parameterizations relate the...- publication PDF
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Retrieval of aerosol single scattering albedo at ultraviolet wavelengths at...
Surface measurements of direct and diffuse voltages at UV wavelengths were made at the T1 site during the MILAGRO (Megacity Initiative: Local and Global Research Observations)...- publication PDF
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Axisymmetric Tornado Simulations at High Reynolds Number
This study is the first in a series that investigates the effects of turbulence in the boundary layer of a tornado vortex. In this part, axisymmetric simulations with constant...- publication PDF
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Progress in understanding of Indian Ocean circulation, variability, air–sea...
Over the past decade, our understanding of the Indian Ocean has advanced through concerted efforts toward measuring the ocean circulation and air-sea exchanges, detecting...- 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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Effects of high-latitude forcing uncertainty on the low-latitude and...
Ensemble simulations are performed using the Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIE-GCM) in order to understand the role of high-latitude forcing...- publication PDF
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STREAM‐Sat: A novel near‐realtime quasi‐global satellite‐only ensemble...
Satellite‐based precipitation observations can provide near‐global coverage with high spatiotemporal resolution in near‐realtime. Their utility, however, is...- publication PDF
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Solar cycle dependence of middle atmosphere temperatures
Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) temperature data during 2002 through 2013 and covering 20–110 km altitude between ±83° latitude are...- publication PDF
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Further results on moist nearly neutral flow over a ridge
In a recent study, the authors performed numerical simulations of moist nearly neutral flows over a ridge using the Weather Research and Forecasting (WRF) Model in a regime...- publication PDF
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Ice multiplication by breakup in ice-ice collisions. Part II: Numerical Simulations
In Part I of this two-part paper, a formulation was developed to treat fragmentation in ice-ice collisions. In the present Part II, the formulation is implemented in two...- publication PDF
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Numerical modeling of gravity wave generation by deep tropical convection
Although convective clouds are known to generate internal gravity waves, the mechanisms responsible are not well understood. The present study seeks to clarify the dynamics of...- publication PDF
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Recent tropical expansion: Natural variability or forced response?
Previous studies have documented a poleward shift in the subsiding branches of Earth's Hadley circulation since 1979 but have disagreed on the causes of these observed changes...- publication PDF
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Stratospheric dynamical response and ozone feedbacks in the presence of SO2...
Injections of sulfur dioxide into the stratosphere are among several proposed methods of solar radiation management. Such injections could cool the Earth's climate. However,...- publication PDF
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Comparison of NCAR Community Climate Model (CCM) Climates
The purpose of this project is to establish the climate record of four versions of the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM). All four...- publication PDF
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Km-scale simulations of mesoscale convective systems over South America - a...
Mesoscale convective systems (MCSs) are clusters of thunderstorms that are important in Earth's water and energy cycle. Additionally, they are responsible for extreme events...- publication PDF
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PARMIO: A reference quality model for ocean surface emissivity and...
ISSI Science Team Meeting Report on Development of a Reference Quality Model for Ocean Surface Emissivity and Backscatter from the Microwave to the InfraredWhat: An...- publication PDF
