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The path to CAM6: Coupled simulations with CAM5.4 and CAM5.5
This paper documents coupled simulations of two developmental versions of the Community Atmosphere Model (CAM) towards CAM6. The configuration called CAM5.4 introduces new...- publication PDF
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A low communication and large time step explicit finite-volume solver for...
An explicit finite-volume solver is proposed for numerical simulation of non-hydrostatic atmospheric dynamics with promise for efficiency on massively parallel machines via low...- publication PDF
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What seismic minimum reveals about solar magnetism below the surface
The Sun's magnetic field varies on multiple timescales. Observations show that the minimum between cycles 24 and 25 was the second consecutive minimum that was deeper and wider...- publication PDF
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Variability due to climate and chemistry in observations of oxygenated...
The Great Oxidation Event was a period during which Earth's atmospheric oxygen (O-2) concentrations increased from similar to 10(-5) times its present atmospheric level (PAL) to...- publication PDF
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Photochemical evolution of the 2013 California Rim Fire: Synergistic impacts...
Large wildfires influence regional atmospheric composition, but chemical complexity challenges model predictions of downwind impacts. Here, we elucidate key connections within...- publication PDF
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Impact of CYGNSS-derived winds on tropical cyclone forecasts in a global and...
An observing system experiment was conducted to assess the impact of wind products derived from the Cyclone Global Navigation Satellite System (CYGNSS) on tropical cyclone...- publication PDF
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The Third Atmospheric Scientific Experiment for Understanding the...
This paper presents the background, scientific objectives, experimental design, and preliminary achievements of the Third Tibetan Plateau (TP) Atmospheric Scientific Experiment...- publication PDF
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The sensitivity of intraseasonal variability in the NCAR CCM3 to changes in...
The National Center for Atmospheric Research (NCAR) Community Climate Model, version 3.6 (CCM3) simulation of tropical intraseasonal variability in zonal winds and precipitation...- publication PDF
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The effect of future ambient air pollution on human premature mortality to...
Ambient air pollution from ground-level ozone and fine particulate matter (PM2.5) is associated with premature mortality. Future concentrations of these air pollutants will be...- publication PDF
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Radiative forcing in the ACCMIP historical and future climate simulations
The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) examined the short-lived drivers of climate change in current climate models. Here we evaluate the...- publication PDF
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Edge fires drive the shape and stability of tropical forests
In tropical regions, fires propagate readily in grasslands but typically consume only edges of forest patches. Thus, forest patches grow due to tree propagation and shrink by...- publication PDF
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Direct numerical simulation of top-down and bottom-up diffusion in the...
A direct numerical simulation (DNS) of an unstably stratified convective boundary layer with system rotation was performed to study top-down and bottom-up diffusion processes....- publication PDF
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Climatological annual cycle of the salinity budgets of the subtropical maxima
Six subtropical salinity maxima (S-max) exist: two each in the Pacific, Atlantic, and Indian Ocean basins. The north Indian (NI) S-max lies in the Arabian Sea while the...- publication PDF
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Four Fourier transform spectrometers and the Arctic polar vortex: instrument...
The Canadian Arctic Atmospheric Chemistry Experiment Validation Campaigns have been carried out at Eureka, Nunavut (80.05° N, 86.42° W) during the polar sunrise period since...- publication PDF
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Precipitation characteristics of easterly waves across the global tropics
Tropical easterly waves (TEWs) are a recurrent mode of low-latitude weather that are often convectively coupled and impact precipitation extremes. Previous work has examined the...- publication PDF
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Transpacific transport of ozone pollution and the effect of recent Asian...
We use an ensemble of aircraft, satellite, sonde, and surface observations for April-May 2006 (NASA/INTEX-B aircraft campaign) to better understand the mechanisms for...- publication PDF
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Advances in permafrost representation: Biophysical processes in Earth System...
Permafrost is undergoing rapid changes due to climate warming, potentially exposing a vast reservoir of carbon to be released to the atmosphere, causing a positive feedback...- publication PDF
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Description and evaluation of the characteristics of the NCAR...
This paper describes important characteristics of an uncoupled high-resolution land data assimilation system (HRLDAS) and presents a systematic evaluation of 18-month-long...- publication PDF
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The impacts of climate, land use, and demography on fires during the 21st...
Landscape fires during the 21st century are expected to change in response to multiple agents of global change. Important controlling factors include climate controls on the...- publication PDF
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The microwave radiative properties of falling snow derived from nonspherical...
A 3D growth model is used to simulate pristine ice crystals, which are aggregated using a collection algorithm to create larger, multicrystal particles. The simulated crystals...- publication PDF
