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Linear analysis and nonlinear evolution of two‐dimensional global magnetohydr...
We develop a more realistic two-dimensional model for global MHD instabilities in the solar tachocline, by including diffusion in the form of kinetic and magnetic drag (...- publication PDF
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Net radiative forcing and air quality responses to regional CO emission reduc...
Carbon monoxide (CO) emissions influence global and regional air quality and global climate change by affecting atmospheric oxidants and secondary species. We simulate the...- publication PDF
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Modeling of multiple effects of atmospheric tides on the ionosphere: An exami...
A number of recent studies have highlighted the observational evidence for a coupling between atmospheric tides in the thermosphere and the electron density structure of the...- publication PDF
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The lack of QBO‐MJO connection in CMIP6 models
Observational analysis has indicated a strong connection between the stratospheric quasi-biennial oscillation (QBO) and tropospheric Madden-Julian oscillation (MJO), with MJO...- publication PDF
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The multi-thermal chromosphere
Context. Numerical simulations of the solar chromosphere predict a diverse thermal structure with both hot and cool regions. Observations of plage regions in particular...- publication PDF
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A Survey of Hawaii for Balloon Launch Sites
A group under Dr. Luis Alvarez at the Space Sciences Laboratory, University of California, is preparing a balloon-borne particle physics experiment, designed for recovery at...- publication PDF
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On measurements of small ice particles in clouds
For many years it has been recognized that some aircraft cloud microphysical measurements may be contaminated by ice hydrometeors shattering on probe inlets. Small ice particle...- publication PDF
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Simulated microphysical properties of winter storms from bulk-type microphysi...
This study evaluates the performance of four bulk-type microphysics schemes, Weather Research and Forecasting (WRF) double-moment 6-class (WDM6), WRF double-moment 7-class...- publication PDF
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Global ionospheric and thermospheric response to the 5 April 2010 geomagnetic...
We present a case study of the 5 April 2010 geomagnetic storm using observations and numerical simulations. The event was driven by a fast-moving coronal mass ejection and...- publication PDF
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Listening to stakeholders: Initiating research on subseasonal-to-seasonal hea...
Heavy precipitation events and their associated flooding can have major impacts on communities and stakeholders. There is a lack of knowledge, however, about how stakeholders...- publication PDF
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Effects of solar proton events on dayglow observed by the TIMED/SABER satellite
The effect of solar proton events on the daytime O-2 and OH airglows and ozone and atomic oxygen concentrations in the mesosphere is studied using data from the Sounding of the...- publication PDF
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Validation of ACE and OSIRIS ozone and NO2 measurements using ground-based in...
The Optical Spectrograph and Infra-Red Imager System (OSIRIS) and the Atmospheric Chemistry Experiment (ACE) have been taking measurements from space since 2001 and 2003,...- publication PDF
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Transport pathways of carbon monoxide in the Asian summer monsoon diagnosed f...
Satellite observations of tropospheric chemical constituents (such as carbon monoxide, CO) reveal a persistent maximum in the upper troposphere–lower stratosphere (UTLS)...- publication PDF
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Spatio-temporal observations of the tertiary ozone maximum
We present spatio-temporal distributions of the tertiary ozone maximum (TOM), based on GOMOS (Global Ozone Monitoring by Occultation of Stars) ozone measurements in 2002-2006....- publication PDF
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The NCAR In Situ Turbulence Detection Algorithm
Historically, there has been one main source for routine turbulence observations for the aviation community, namely pilot reports. Although useful for tactical turbulence...- publication PDF
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From reliable weather forecasts to skilful climate response: A dynamical syst...
While weather forecasting models can be tested by performing and evaluating many hindcasts, the limited observational record restricts the degree to which climate projections...- publication PDF
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Greenland surface mass balance as simulated by the Community Earth System Mod...
This study presents the first twenty-first-century projections of surface mass balance (SMB) changes for the Greenland Ice Sheet (GIS) with the Community Earth System Model...- publication PDF
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A preliminary investigation of boundary layer effects on daytime CO₂ concentr...
Observations of CO₂ concentration at a mountaintop in the Colorado Rockies in summer show a large diurnal variability with minimum CO₂ concentrations found between 10:00 and...- publication PDF
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Evolution of mesoscale convective system organizational structure and convect...
This study examines organizational changes and periods of rapid forward propagation in an MCS on 6 July 2015 in South Dakota. The MCS case was the focus of a Plains Elevated...- publication PDF
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Impacts of updraft size and dimensionality on the perturbation pressure and v...
This paper compares simple theoretical expressions relating vertical velocity, perturbation pressure, updraft size, and dimensionality for cumulus convection, derived in Part I,...- publication PDF