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Intermittent turbulence associated with a density current passage in the...
Using the unprecedented observational capabilities deployed during the Cooperative Atmosphere-Surface Exchange Study-99 (CASES-99), we found three distinct turbulence events on...- publication PDF
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Getting the word out, rain or shine: The impact of message features and...
Networked social media provide governmental organizations, such as the National Weather Service (NWS), the opportunity to communicate directly with stakeholders over long...- publication PDF
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The Delta-Eddington Approximation for a Vertically Inhomogeneous Atmosphere
The delta-Eddington approximation of Joseph, Wiscombe, and Weinman (1976) is extended to an atmosphere divided up by internal levels into homogeneous layers. Flux continuity is...- publication PDF
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Multimodel climate and variability of the stratosphere
The stratospheric climate and variability from simulations of sixteen chemistry-climate models is evaluated. On average the polar night jet is well reproduced though its...- publication PDF
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Improving station-based ensemble surface meteorological analyses using...
Surface meteorological analyses serve a wide range of research and applications, including forcing inputs for hydrological and ecological models, climate analysis, and resource...- publication PDF
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Mean biases, variability, and trends in air-sea fluxes and sea surface...
Airâsea fluxes from the Community Climate System Model version 4 (CCSM4) are compared with the Coordinated Ocean-Ice Reference Experiment (CORE) dataset to assess present-day...- publication PDF
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Simulation of the formation of a solar active region
We present a radiative magnetohydrodynamics simulation of the formation of an active region (AR) on the solar surface. The simulation models the rise of a buoyant magnetic flux...- publication PDF
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Role of tropical lower stratosphere winds in quasi-biennial oscillation disruptions
In 2016, the westerly quasi-biennial oscillation (WQBO) in the equatorial stratosphere was unprecedentedly disrupted by westward forcing near 40 hPa; this was followed by...- publication PDF
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Spectral characteristics of convective-scale precipitation observations and forecasts
As an alternative to traditional precipitation analysis and forecast verification, 1D and 2D spectral decompositions of NCEP/Stage IV and Multi-Radar Multi-Sensor (MRMS)...- publication PDF
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The role of boundary layer convergence zones and horizontal rolls in the...
The initiation of thunderstorms is examined through a combined observational and modeling case study. The study is based on Doppler radar, aircraft, mesonet, balloon sounding,...- publication PDF
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The mysteries of Mammatus clouds: Observations and formation mechanisms
Mammatus clouds are an intriguing enigma of atmospheric fluid dynamics and cloud physics. Most commonly observed on the underside of cumulonimbus anvils, mammatus also occur on...- publication PDF
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Using GRACE data to estimate climate change impacts on the Earth's moment of inertia
The widely used 15-year Gravity Recovery and Climate Experiment (GRACE) measured mass redistribution shows an increasing trend in the nontidal Earth's moment of inertia (MOI)....- publication PDF
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Neutral tropical African CO2 exchange estimated from aircraft and satellite...
Tropical lands play an important role in the global carbon cycle yet their contribution remains uncertain owing to sparse observations. Satellite observations of atmospheric...- publication PDF
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Severe convectively induced turbulence hitting a passenger aircraft and its...
Atmospheric turbulence poses a major risk to aviation. Besides airframe damage, it can cause injuries of passengers and crew when encountered unexpectedly. The Singapore...- publication PDF
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Solving 3D magnetohydrostatics with RBF-FD: Applications to the solar corona
We present a novel magnetohydrostatic numerical model that solves directly for the force-balanced magnetic field in the solar corona. This model is constructed with Radial Basis...- publication PDF
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Variability of zonal mean tropical temperatures derived from a decade of GPS...
Variability in tropical zonal mean temperatures over 10-30 km is analyzed based on high-quality, high-vertical-resolution GPS temperature measurements covering 2001-13. The...- publication PDF
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Development and validation of the whole atmosphere Community Climate Model...
Key developments have been made to the NCAR Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM-X). Among them, the most important are the...- publication PDF
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Rapid ozone depletion after humidification of the stratosphere by the Hunga...
The eruption of the Hunga Tonga-Hunga Ha'apai volcano on 15 January 2022 offered a good opportunity to explore the early impacts of tropical volcanic eruptions on stratospheric...- publication PDF
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Addition of multilayer urban canopy models to a nonlocal planetary boundary...
The multilayer urban canopy models (UCMs) building effect parameterization (BEP) and BEP + building energy model (BEM; a building energy model integrated in BEP) are added to...- publication PDF
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Dependence of relativistic electron precipitation in the ionosphere on EMIC...
We investigate relativistic electron precipitation events detected by Polar Environmental Satellites (POES) in low-Earth orbit in close conjunction with Van Allen Probe A...- publication PDF
