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Climate change impacts on the water balance of the Colorado headwaters:...
A high-resolution climate model (4-km horizontal grid spacing) is used to examine the following question: How will long-term changes in climate impact the partitioning of annual...- publication PDF
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Solar and greenhouse gas forcing and climate response in the 20th century
Ensemble experiments with a global coupled climate model are performed for the twentieth century with time-evolving solar, greenhouse gas, sulfate aerosol (direct effect), and...- publication PDF
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Impact of solar geoengineering on wildfires in the 21st century in CESM2/WACCM6
We quantify future changes in wildfire burned area and carbon emissions in the 21st century under four Shared Socioeconomic Pathways (SSPs) scenarios and two SSP5-8.5-based...- publication PDF
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A comparison between the 4DVAR and the ensemble Kalman filter techniques for...
A four-dimensional variational data assimilation (4DVAR) algorithm is compared to an ensemble Kalman filter (EnKF) for the assimilation of radar data at the convective scale....- publication PDF
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Statistical emulation of a perturbed basal melt ensemble of an ice sheet...
Antarctic ice shelves are vulnerable to warming ocean temperatures, and some have already begun thinning in response to increased basal melt rates. Sea level is therefore...- publication PDF
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Evaluation of simulated O3 production efficiency during the KORUS-AQ...
We examine O3 production and its sensitivity to precursor gases and boundary layer mixing in Korea by using a 3-D global chemistry transport model and extensive observations...- publication PDF
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Thermally Driven and Eddy-Driven Jet Variability in Reanalysis
Two important dynamical processes influence the extratropical zonal wind field: angular momentum transport by the thermally direct Hadley circulation (thermal-driving T) and...- publication PDF
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Lidar backscatter signal recovery from phototransistor systematic effect by...
Backscatter lidar detection systems have been designed and integrated at NASA Langley Research Center using IR heterojunction phototransistors. The design focused on maximizing...- publication PDF
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3-D ionospheric imaging over the South American region with a new TEC-based...
This study has developed a new TEC-based ionospheric data assimilation system for 3-D regional ionospheric imaging over the South American sector (TIDAS-SA) (45 degrees S-15...- publication PDF
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A twentieth century perspective on summer Antarctic pressure change and...
During the late twentieth century, the Antarctic atmospheric circulation has changed and significantly influenced the overall Antarctic climate, through processes including a...- publication PDF
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Flux and Sounding Data From the NCAR King Air Aircraft During HAPEX
This technical note describes the operation of the NCAR King Air aircraft during HAPEX, the methods of processing the data, and presents a large portion of the data from the...- publication PDF
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Sensitivity of cloud-resolving simulations of warm-season convection to...
This paper investigates the effects of cloud microphysics parameterizations on simulations of warm-season precipitation at convection-permitting grid spacing. The objective is...- publication PDF
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On the momentum budget of the quasi-biennial oscillation in the Whole...
This study documents the contribution of equatorial waves and mesoscale gravity waves to the momentum budget of the quasi-biennial oscillation (QBO) in a 110-level version of...- publication PDF
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Measurements of CH₃O₂NO₂ in the upper troposphere
Methyl peroxy nitrate (CH₃O₂NO₂) is a non-acyl peroxy nitrate that is important for photochemistry at low temperatures characteristic of the upper troposphere. We report the...- publication PDF
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The International Urban Energy Balance Models Comparison Project: First...
A large number of urban surface energy balance models now exist with different assumptions about the important features of the surface and exchange processes that need to be...- publication PDF
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Intercomparison of surface meltwater routing models for the Greenland ice...
Each summer, large volumes of surface meltwater drain off the Greenland ice sheet (GrIS) surface through moulins to the bed, impacting subglacial hydrology and ice flow...- publication PDF
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Jet alignment in a two-layer quasigeostrophic channel using one-dimensional...
Because of position errors traditional methods of data assimilation can broaden and weaken jets or other flow structures leading to reduced forecast skill. Here a technique to...- publication PDF
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Comparison of inversion codes for polarized line formation in MHD...
Milne-Eddington (M-E) inversion codes for the radiative transfer equation are the most widely used tools to infer the magnetic field from observations of the polarization...- publication PDF
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The Community Earth System Model (CESM) large ensemble project: A community...
While internal climate variability is known to affect climate projections, its influence is often underappreciated and confused with model error. Why? In general, modeling...- publication PDF
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Diurnal and semidiurnal tides in global surface pressure fields
Global surface pressure data from 1976 to 1997 from over 7500 land stations and the Comprehensive Ocean-Atmosphere Data Set have been analyzed using harmonic and zonal harmonic...- publication PDF
