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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
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Thermospheric basis functions for improved dynamic calibration of...
State-of-the-art satellite drag models require upgrades to meet operational Precision Orbit Determination requirements for collision avoidance, reentry predictions and catalog...- publication PDF
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Effects of the 2006 El Niño on tropospheric composition as revealed by data...
The Tropospheric Emission Spectrometer (TES) is unique in providing multi-year coincident tropospheric profiles of CO, Oâ and HâO. TES data show large differences in these...- publication PDF
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Technical Note: Comparison of ensemble Kalman filter and variational...
Data assimilation (DA) approaches, including variational and the ensemble Kalman filter methods, provide a computationally efficient framework for solving the COâ source-sink...- publication PDF
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Toward anthropogenic combustion emission constraints from space-based...
We explore the value of multispectral CO retrievals from NASA/Terra Measurement of Pollution In The Troposphere (MOPITT v5), along with Atmospheric COâ Observations from Space...- publication PDF
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Climate SPHINX: evaluating the impact of resolution and stochastic physics...
The Climate SPHINX (Stochastic Physics HIgh resolutioN eXperiments) project is a comprehensive set of ensemble simulations aimed at evaluating the sensitivity of present and...- publication PDF
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Convection-permitting regional climate simulations in the Arabian Gulf...
The regional climate of the Arabian Gulf region is modeled using a set of simulations based on the Weather Research and Forecasting (WRF) Model, including a 30-yr benchmark...- publication PDF
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The summer North Atlantic oscillation: Past, present, and future
Summer climate in the North Atlantic - European sector possesses a principal pattern of year-to-year variability that is the parallel to the well-known North Atlantic...- publication PDF
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Evolution of amplitude and longitude phase of tachocline Rossby waves...
Physics of magnetohydrodynamic (MHD) Rossby waves in the tachocline-layer were studied by Dikpati et al., using a fluid-particle-trajectory approach along with solving...- publication PDF
