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Characterization of uncertainty in outdoor sound propagation predictions
Predictive skill for outdoor sound propagation is assessed using high-resolution atmospheric fields from large-eddy simulations (LES). Propagation calculations through the full...- publication PDF
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Trust and trustworthy artificial intelligence: A research agenda for AI in...
Demands to manage the risks of artificial intelligence (AI) are growing. These demands and the government standards arising from them both call for trustworthy AI. In response,...- publication PDF
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Convective impact on the global lower stratospheric water vapor budget
Water vapor in the stratosphere is primarily controlled by temperatures in the tropical upper troposphere and lower stratosphere. However, the direct impact of deep convection...- publication PDF
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GEFSv12 reforecast dataset for supporting subseasonal and...
For the newly implemented Global Ensemble Forecast System, version 12 (GEFSv12), a 31-yr (1989â2019) ensemble reforecast dataset has been generated at the National Centers for...- publication PDF
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A technique for generating consistent ice sheet initial conditions for...
A transient technique for generating ice sheet preindustrial initial conditions for long-term coupled ice sheet/climate model simulations is developed and demonstrated over the...- publication PDF
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The Gradient Velocity Track Display (GrVTD) technique for retrieving...
The ground-based velocity track display (GBVTD) technique was developed to estimate the primary circulations of landfalling tropical cyclones (TCs) from single-Doppler radar...- publication PDF
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The soil and plant biogeochemistry sampling design for The National...
Human impacts on biogeochemical cycles are evident around the world, from changes to forest structure and function due to atmospheric deposition, to eutrophication of surface...- publication PDF
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Possible observation of horizontal roll vortices over the Adriatic Sea during bora
We report a possible occurrence of horizontal roll vortices over the Adriatic Sea during the bora wind. The National Center for Atmospheric Research Electra aircraft measured...- publication PDF
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Dynamics of the tachocline
The solar tachocline is an internal region of the Sun possessing strong radial and latitudinal shears straddling the base of the convective envelope. Based on helioseismic...- publication PDF
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Sensitivity of the Arctic sea ice cover to the summer Surface Scattering Layer
The "surface scattering layer" (SSL) is the highly-scattering, coarse-grained ice layer that forms on the surface of melting, drained sea ice during spring and summer. Ice of...- publication PDF
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North Pacific climate response to freshwater forcing in the subarctic North...
Sudden changes of the Atlantic meridional overturning circulation (AMOC) are believed to have caused large, abrupt climate changes over many parts of the globe during the last...- publication PDF
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Performance bounds for particle filters using the optimal proposal
Particle filters may suffer from degeneracy of the particle weights. For the simplest "bootstrap" filter, it is known that avoiding degeneracy in large systems requires that the...- publication PDF
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Spiral rainbands in a numerical simulation of Hurricane Bill (2009). Part I:...
This study examines spiral rainbands in a numerical simulation of Hurricane Bill (2009). This paper, the first part of the study, evaluates the structures of spiral rainbands...- publication PDF
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Fitting a Cartesian prediction model to radial-velocity data from...
Previous experiments with the adjoint technique for determining the three-dimensional wind and thermodynamic fields from single-Doppler radar data have assumed that the radar...- publication PDF
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Using transport diagnostics to understand chemistry climate model ozone simulations
We use observations of NâO and mean age to identify realistic transport in models in order to explain their ozone predictions. The results are applied to 15 chemistry climate...- publication PDF
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Large-scale forcing impact on the development of shallow convective clouds...
Real-world large-eddy simulations (LES) are driven by time-varying large-scale forcings (LSF) -- e.g., temperature advection, moisture advection, and subsidence -- derived from...- publication PDF
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Impact of scale-aware deep convection on the cloud liquid and ice water...
The cloud liquid water path (LWP), ice water path (IWP), and precipitation simulated with uniform- and variable-resolution numerical experiments using the Model for Prediction...- publication PDF
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Formation of the summertime ozone valley over the Tibetan Plateau: The Asian...
The summertime ozone valley over the Tibetan Plateau is formed by two influences, the Asian summer monsoon (ASM) and air column variations. Total ozone over the Tibetan Plateau...- publication PDF
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Northern hemisphere stratosphere-troposphere circulation change in CMIP6...
Projected changes in the Northern Hemisphere stratospheric polar vortex are analyzed using Climate Model Intercomparison Project Phase 6 experiments. Previous studies showed...- publication PDF
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An EnOI-based data assimilation system with DART for a high-resolution...
An ensemble optimal interpolation (EnOI) data assimilation system for a high-resolution (0.1 degrees horizontal) version of the Community Earth System Model Version 2 (CESM2)...- publication PDF
