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Sun-like magnetic cycles in the rapidly rotating young solar analog HD 30495
A growing body of evidence suggests that multiple dynamo mechanisms can drive magnetic variability on different timescales, not only in the Sun but also in other stars. Many...- publication PDF
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Constraining emissions of volatile organic compounds from Western US...
The impact of biomass burning (BB) on the atmospheric burden of volatile organic compounds (VOCs) is highly uncertain. Here we apply the GEOS-Chem chemical transport model (CTM)...- publication PDF
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Global precipitation and thunderstorm frequencies. Part I: Seasonal and...
Present and past weather reports from ~15000 stations around the globe and from the Comprehensive Ocean-Atmosphere Data Set from 1975 to 1997 were analyzed for the frequency of...- publication PDF
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An observational and modeling study of characteristics of urban heat island...
In this paper, the characteristics of urban heat island (UHI) and boundary layer structures in the Beijing area, China, are analyzed using conventional and Moderate Resolution...- publication PDF
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WRF-Solar: Description and clear-sky assessment of an augmented NWP model...
WRF-Solar is a specific configuration and augmentation of the Weather Research and Forecasting (WRF) Model designed for solar energy applications. Recent upgrades to the WRF...- publication PDF
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An unprecedented set of high-resolution earth system simulations for...
We present an unprecedented set of high-resolution climate simulations, consisting of a 500-year pre-industrial control simulation and a 250-year historical and future climate...- publication PDF
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GPU computing for atmospheric modeling: Experience with a small kernel and...
Modern graphics processing units (GPUs) offer the potential for extremely high performance floating point computation. Many important kernels, as well as certain types of...- publication PDF
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Land–atmosphere interactions: The LoCo perspective
Metrics derived by the LoCo working group Local Land-Atmosphere Coupling) have matured and begun to enter the mainstream, signaling the success of the GEWEX approach to foster...- publication PDF
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Understanding the persistence of sea surface temperature anomalies in midlatitudes
An extension of the simple stochastic climate model of Frankignoul and Hasselman that includes the effects of seasonal variations in upper-ocean mixed layer depth upon the...- publication PDF
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On the diurnal cycle of surface energy fluxes in the North American monsoon...
The diurnal cycles of surface energy fluxes are important drivers of atmospheric boundary layer development and convective precipitation, particularly in regions with...- publication PDF
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Observed Long-period Fluctuations in 500-mb Heights -- Supplementary Text to...
This text is intended to be used as an aid for the two motion picture films produced, using the computer facilities at the National Center for Atmospheric Research, to show the...- publication PDF
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Numerical simulations of the post-sunrise reorganization of a nocturnal...
A convection-permitting numerical model is used to simulate the post-sunrise reorganization of a nocturnal mesoscale convective system (MCS) observed over western and central...- publication PDF
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Assimilating surface Mesonet observations with the EnKF to improve ensemble...
Surface data assimilation (DA) has the potential to improve forecasts of convection initiation (CI) and short-term forecasts of convective evolution. Since the processes driving...- publication PDF
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Contributions of aerosol-cloud interactions to mid-Piacenzian seasonally sea...
Forcings and feedbacks controlling the seasonally sea ice-free Arctic Ocean during the mid-Piacenzian Warm period (3.264–3.025 Ma, MPWP), a period when CO2 level, geography, and...- publication PDF
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Biomass burning influence on high-latitude tropospheric ozone and reactive...
We have evaluated tropospheric ozone enhancement in air dominated by biomass burning emissions at high latitudes (> 50° N) in July 2008, using 10 global chemical transport...- publication PDF
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The role of mesoscale cloud morphology in the shortwave cloud feedback
A supervised neural network algorithm is used to categorize near-global satellite retrievals into three mesoscale cellular convective (MCC) cloud morphology patterns. At...- publication PDF
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Advances in land surface modelling
Land surface models have an increasing scope. Initially designed to capture the feedbacks between the land and the atmosphere as part of weather and climate prediction, they are...- publication PDF
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Aquaplanet experiments using CAM's variable-resolution dynamical core
A variable-resolution option has been added within the spectral element (SE) dynamical core of the U.S. Department of Energy (DOE)–NCAR Community Atmosphere Model (CAM). CAM-SE...- publication PDF
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Simulated global climate response to tropospheric ozone-induced changes in...
Tropospheric ozone (O-3) pollution is known to damage vegetation, reducing photosynthesis and stomatal conductance, resulting in modified plant transpiration to the atmosphere....- publication PDF
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Sensitivities of land cover-precipitation feedback to convective triggering
The land surface state can be an important factor in the triggering of precipitation, whose depiction in Earth system models (ESMs) crucially relies on the representation of...- publication PDF
