-
Damping characteristics of horizontal Laplacian diffusion filters
Horizontally diffusive computational damping terms are frequently employed in 3D atmospheric simulation models to enhance stability and to suppress small-scale noise. In...- publication PDF
-
The winter helium bulge revisited
A newly implemented helium module in the National Center for Atmospheric Research-Thermosphere Ionosphere Electrodynamics general circulation model offers the first opportunity...- publication PDF
-
Asynchronous Communication in Spectral Element and Discontinuous Galerkin...
The scalability of computational applications on current and next generation supercomputers is increasingly limited by the cost of inter-process communication. We implement non-...- publication PDF
-
Gaussian vs non-Gaussian turbulence: impact on wind turbine loads
From large-eddy simulations of atmospheric turbulence, a representation of Gaussian turbulence is constructed by randomizing the phases of the individual modes of variability....- publication PDF
-
Large wind shears and their implications for diffusion in regions with...
The NCAR Whole Atmosphere Community Climate Model, with a quasi-uniform horizontal resolution of similar to 25 km and a vertical resolution of 0.1 scale height, produces large...- publication PDF
-
Bridging the gap between global weather prediction and global...
We introduce a 6.5‐km version of the Geophysical Fluid Dynamics Laboratory (GFDL)'s System for High‐resolution prediction on Earth‐to‐Local Domains...- publication PDF
-
Solar coronal loops associated with small-scale mixed polarity surface...
How and where are coronal loops rooted in the solar lower atmosphere? The details of the magnetic environment and its evolution at the footpoints of coronal loops are crucial to...- publication PDF
-
Observational evidence of high-altitude meteor trail from radar interferometer
Whether radar meteor echoes occur at high altitudes (above ~130 km) in the Earth's atmosphere is a long-standing question within the meteor radar community. Using observations...- publication PDF
-
The role of magnetic flux tube deformation and magnetosheath plasma beta in...
The phenomena of cross polar cap potential (CPCP) and ionospheric field-aligned current (FAC) saturation remain largely unexplained. In the present study, we expand upon the...- publication PDF
-
Simulated trapping of solar energetic protons for the 8-10 March 2012...
Solar energetic protons (SEPs) have been shown to contribute significantly to the inner zone trapped proton population for energies lt;100 MeV and L gt; 1.3 (Selesnick et al.,...- publication PDF
-
Local and remote controls on observed Arctic warming
The Arctic is warming two to four times faster than the global average. Debate continues on the relative roles of local factors, such as sea ice reductions, versus remote...- publication PDF
-
Characterization of trace gases measured over Alberta oil sands mining...
Oil sands comprise 30% of the world's oil reserves and the crude oil reserves in Canada's oil sands deposits are second only to Saudi Arabia. The extraction and processing of...- publication PDF
-
On the sensitivity of precipitation in convection-permitting climate...
This study evaluates the representation of precipitation in a set of multi-year convection-permitting sensitivity experiments over the European Alpine region. In the last few...- publication PDF
-
The GFDL Global Atmosphere and Land Model AM4.0/LM4.0: 1. Simulation...
In this two-part paper, a description is provided of a version of the AM4.0/LM4.0 atmosphere/land model that will serve as a base for a new set of climate and Earth system...- publication PDF
-
A large-eddy simulation study of deep-convection initiation through the...
Deep convection plays important roles in producing severe weather and regulating the large-scale circulation. However, deep-convection initiation (DCI), which determines when...- publication PDF
-
Interpretable models capture the complex relationship between climate...
There have been many extreme fire seasons in Maritime Southeast Asia (MSEA) over the last two decades. Fires, in turn, are a major driver of atmospheric carbon monoxide (CO)...- publication PDF
-
Two-dimensional correlation functions for density and magnetic field...
Knowledge of multidimensional correlation functions is crucial for understanding the anisotropy of turbulence. The two-dimensional (2-D) spatial correlation functions (SCFs)...- publication PDF
-
Tidal impact on quiet‐time polar thermosphere zonal winds during northern...
This study primarily examines the variability of zonal winds in the geomagnetic “quiet‐time” (AE index < 190 nT; Kp index < 2)...- publication PDF
-
The double tropopause and its dynamical relationship to the tropopause...
Using High Resolution Dynamic Limb Sounder observations and ERA-Interim reanalysis this study demonstrates that the warm conveyor belt (WCB) is a mechanism responsible for the...- publication PDF
-
CLUBB as a unified cloud parameterization: Opportunities and challenges
CLUBB (Cloud Layers Unified by Binormals) is a higher-order closure (HOC) method with an assumed joint probability density function (PDF) for the subgrid variations in vertical...- publication PDF
