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Characterizing ionospheric effect on GNSS radio occultation atmospheric bending angle
Global Navigation Satellite System (GNSS) atmospheric radio occultation (RO) has been an active remote sensing method to explore the Earth's atmosphere recently. The RO products...- publication PDF
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Midlatitude cyclone compositing to constrain climate model behavior using...
Identical composite analysis of midlatitude cyclones over oceanic regions has been carried out on both output from the NCAR Community Atmosphere Model, version 3 (CAM3) and...- publication PDF
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Analog ensemble methods for improving satellite-based intensity estimates of...
Accurate, reliable estimates of tropical cyclone (TC) intensity are a crucial element in the warning and forecast process worldwide, and for the better part of 50 years,...- publication PDF
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HIWIND observation of summer season polar cap thermospheric winds
HIWIND (High altitude Interferometer WIND experiment) is a balloon-borne Fabry Perot interferometer for daytime thermospheric wind observations. In this paper, we examine the...- publication PDF
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An analysis of the momentum forcing in the high-latitude lower thermosphere
We analyze the dynamics of the high-latitude thermsopheric wind system below 170 km for negative IMF B z by using a fully nonlinear model with a realistic distribution of the...- publication PDF
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Atmospheric sounding using GPS radio occultation
This paper summarizes the radio occultation (RO) technique for remote sounding of the Earth’s atmosphere using the Global Positioning System (GPS) satellites and GPS receivers...- publication PDF
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Theoretical study of new plasma structures in the low-latitude ionosphere...
Theoretical model simulations for an intense magnetic storm show the creation of a low-latitude electron density arch aligned along the geomagnetic field created by strong...- publication PDF
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Coupling large eddies and waves in turbulence: Case study of magnetic...
In turbulence, for neutral or conducting fluids, a large ratio of scales is excited because of the possible occurrence of inverse cascades to large, global scales together with...- publication PDF
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Northern hemisphere blocking in ∼25‐km‐resolution E3SM v0.3 atmosphere‐land...
The fidelity of a prerelease Energy Exascale Earth System Model (E3SM) in reproducing atmospheric blocking is evaluated with similar to 100- and similar to 25-km horizontal...- publication PDF
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Influence of the El Niño Southern Oscillation on the middle and upper atmosphere
Based on Whole Atmosphere Community Climate Model (WACCM) simulations, Pedatella and Liu (2012) recently demonstrated that significant interannual variability occurs in...- publication PDF
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Convective-scale data assimilation for the weather research and forecasting...
Particle filters (PFs) are Monte Carlo data assimilation techniques that operate with no parametric assumptions for prior and posterior errors. A data assimilation method...- publication PDF
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Development of near-cloud turbulence diagnostics based on a convective...
We propose near-cloud turbulence (NCT) diagnostics for use in aviation turbulence forecasting, using a convective gravity wave drag (CGWD) parameterization scheme. The NCT...- publication PDF
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Improved simulations of atmospheric river climatology and variability in...
Atmospheric rivers (ARs), referring to long and narrow filamentary bands of intense water vapor transport in the atmosphere, can cause extreme precipitation, floods, and drought...- publication PDF
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Resolving tropical cyclone intensity in models
In recent years, global weather forecast models and global climate models have begun to depict intense tropical cyclones, even up to category 5 on the Saffir-Simpson scale. In...- publication PDF
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Impact of stratospheric air and surface emissions on tropospheric nitrous...
We measured the global distribution of tropospheric N2O mixing ratios during the NASA airborne Atmospheric Tomography (ATom) mission. ATom measured concentrations of similar to...- publication PDF
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Vertical transport, entrainment, and scavenging processes affecting trace...
The convectively driven transport of soluble trace gases from the lower to the upper troposphere can occur on timescales of less than an hour, and recent studies suggest that...- publication PDF
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Relative changes in CO emissions over megacities based on observations from space
Urban areas are large sources of several air pollutants, with carbon monoxide (CO) among the largest. Yet measurement from space of their CO emissions remains elusive due to its...- publication PDF
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A non-Gaussian analysis scheme using rank histograms for ensemble data assimilation
One challenge of geophysical data assimilation is to address the issue of non-Gaussianities in the distributions of the physical variables ensuing, in many cases, from nonlinear...- publication PDF
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The effect of the solar rotational irradiance variation on the middle and...
This paper analyzes the effects of the solar rotational (27-day) irradiance variations on the chemical composition and temperature of the stratosphere, mesosphere and lower...- publication PDF
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Simulation of spatial dependence in daily rainfall using multisite generators
A new approach for modeling the spatial dependence in rainfall occurrence is proposed. Being motivated by a technique for coupling Markov chains in interacting particle systems,...- publication PDF
