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El Niño, the 2006 Indonesian peat fires, and the distribution of atmospheric methane
Dry conditions from a moderate El Niño during the fall of 2006 resulted in enhanced burning in Indonesia with fire emissions of CO approximately 4-6 times larger than the prior...- publication PDF
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A marginal adjustment rank histogram filter for non-gaussian ensemble data...
An extension to standard ensemble Kalman filter algorithms that can improve performance for non-Gaussian prior distributions, non-Gaussian likelihoods, and bounded state...- publication PDF
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Westward traveling planetary wave events in the lower thermosphere during...
We present numerical simulations with the Whole Atmosphere Community Climate Model, eXtended version (WACCM-X), whose dynamics is constrained by atmospheric specifications...- publication PDF
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Evaluating the simulation of CONUS precipitation by storm type in E3SM
Conventional low-resolution (LR) climate models, including the Energy Exascale Earth System Model (E3SMv1), have well-known biases in simulating the frequency, intensity, and...- publication PDF
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A numerical investigation of boundary layer quasi-equilibrium
Despite the large energy input from surface evaporation, the moist static energy (MSE) of the tropical boundary layer remains relatively constant on large spatial and temporal...- publication PDF
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Three-dimensional characteristics of stratospheric mountain waves during T-REX
Measurements from the National Science Foundation/National Center for Atmospheric Research (NSF/NCAR) Gulfstream V (G-V) obtained during the recent Terrain-Induced Rotor...- publication PDF
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Precise GPS data processing for the GPS/MET radio occultation mission at UCAR
On 3 April 1995 the MicroLab-1 satellite was launched into a 750 km and 70 degree inclination orbit carrying the GPS/Meteorology (GPS/MET) receiver payload. The mission was a...- publication PDF
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Poynting flux-conserving low-altitude boundary conditions for global...
A method for specifying low-altitude or inner boundary conditions that conserve low-frequency, magnetic field-aligned, electromagnetic energy flux across the boundary in global...- publication PDF
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Arctic summer airmass transformation, surface inversions, and the surface...
During the Arctic Clouds in Summer Experiment (ACSE) in summer 2014, a weeklong period of warm-air advection over melting sea ice, with the formation of a strong surface...- publication PDF
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Asteroseismic constraints on diffusion in white dwarf envelopes
The asteroseismic analysis of white dwarfs allows us to peer below their photospheres and determine their internal structure. At similar to 28 000K EC20058-5234 is the hottest...- publication PDF
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A new method for interpreting nonstationary running correlations and its...
We here propose a new statistical method to interpret nonstationary running correlations by decomposing them into a stationary part and a first-order Taylor expansion...- publication PDF
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Cloud-resolving chemistry simulation of a Hector thunderstorm
Cloud chemistry simulations were performed for a Hector thunderstorm observed on 16 November 2005 during the SCOUT-O3/ACTIVE campaigns based in Darwin, Australia, with the...- publication PDF
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Long-term particulate matter modeling for health effect studies in...
For the first time, a ~ decadal (9 years from 2000 to 2008) air quality model simulation with 4 km horizontal resolution over populated regions and daily time resolution has...- publication PDF
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Future changes in boreal winter ENSO teleconnections in a large ensemble of...
The impacts of the El Niño-Southern Oscillation (ENSO) are expected to change under increasing greenhouse gas concentrations, but the large internal variability of ENSO and its...- publication PDF
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Spatial and temporal variation in CO over Alberta using measurements from...
Alberta is Canada's largest oil producer, and its oil sands deposits comprise 30% of the world's oil reserves. The process of bitumen extraction and upgrading releases trace...- publication PDF
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Acyl peroxy nitrates link oil and natural gas emissions to high ozone...
We present measurements of ozone (O-3), acyl peroxy nitrates (APNs), and a suite of O-3 precursors made at the Boulder Atmospheric Observatory in Erie, Colorado, during summer...- publication PDF
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Accelerating CMIP data analysis with parallel computing in R
In this Technical Note we examine eight schemes for parallelizing Extreme Value Analysis (EVA) on Coupled Model Intercomparison Project data via R foreach, doParallel, and doMPI...- publication PDF
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The SPARC intercomparison of middle-atmosphere climatologies
An updated assessment of uncertainties in "observed" climatological winds and temperatures in the middle atmosphere (over altitudes ~10-80 km) is provided by detailed...- publication PDF
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COVID‐19 crisis reduces free tropospheric ozone across the Northern Hemisphere
Throughout spring and summer 2020, ozone stations in the northern extratropics recorded unusually low ozone in the free troposphere. From April to August, and from 1 to 8...- publication PDF
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Driving solar giant cells through the self-organization of near-surface plumes
Global 3D simulations of solar giant-cell convection have provided significant insight into the processes which yield the Sun's observed differential rotation and cyclic dynamo...- publication PDF
