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A unified convection scheme (UNICON). Part I: Formulation
The author develops a unified convection scheme (UNICON) that parameterizes relative (i.e., with respect to the grid-mean vertical flow) subgrid vertical transport by nonlocal...- publication PDF
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WACCM simulations of the mean circulation and trace species transport in the...
Downwelling of air in the high latitude winter middle atmosphere causes perturbations in chemical composition. Species with sources in the mesosphere and lower thermosphere,...- publication PDF
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The NCAR–NOAA Global Hawk Dropsonde System
A new remotely controlled Airborne Vertical Atmospheric Profiling System (AVAPS) dropsonde system has been developed for and deployed on the NASA Global Hawk (GH) unmanned...- publication PDF
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The next generation airborne polarimetric Doppler weather radar
Results from airborne field deployments emphasized the need to obtain concurrently high temporal and spatial resolution measurements of 3-D winds and microphysics. A phased...- publication PDF
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The comparative importance of DE3, SE2, and SPW4 on the generation of...
Numerical simulations are performed to investigate the generation of the wave-4 longitude variation in the low-latitude ionosphere due to the diurnal eastward propagating...- publication PDF
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Simulating the solar corona in the forbidden and permitted lines with...
The magnetic field in the corona is important for understanding solar activity. Linear polarization measurements in forbidden lines in the visible/IR provide information about...- publication PDF
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Combinations of natural and anthropogenic forcings and 20th century climate
Ensemble simulations are run with a global coupled climate model employing five forcing agents that influence the time evolution of globally averaged surface air temperature...- publication PDF
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The relation between dayside local Poynting flux enhancement and cusp reconnection
The Defense Meteorological Satellite Program (DMSP) F15 satellite frequently observes an unusually high level of local Poynting flux when the interplanetary magnetic field (IMF)...- publication PDF
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Better calibration of cloud parameterizations and subgrid effects increases...
Realistic simulation of the Earth's mean-state climate remains a major challenge, and yet it is crucial for predicting the climate system in transition. Deficiencies in models'...- publication PDF
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Satellite Data in Meteorological Research
A workshop was held in Boulder, CO from 25 to 31 August 1965 with the purpose of acquainting members of the university community with the latest techniques for using satellite...- publication PDF
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Investigating tropical versus extratropical influences on the Southern...
Since the late 1970s, observations have shown a widening of the tropical Hadley cell (HC) circulation. State-of-the-art climate models reproduce the general trend along with a...- 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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mizuRoute version 1: A river network routing tool for a continental domain...
This paper describes the first version of a stand-alone runoff routing tool, mizuRoute. The mizuRoute tool post-processes runoff outputs from any distributed hydrologic model or...- publication PDF
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Spectral properties of one-dimensional diffusive systems subject to...
The vertical wavenumber and frequency spectra of horizontal wind and temperature in stochastically driven systems with diffusion, either due to uniform background eddy and...- publication PDF
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Reproducibility of GPS radio occultation data for climate monitoring:...
To examine the claim that Global Positioning System (GPS) radio occultation (RO) data are useful as a benchmark data set for climate monitoring, the structural uncertainties of...- publication PDF
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Carbonaceous matter in the atmosphere and glaciers of the Himalayas and the...
Carbonaceous matter, including organic carbon (OC) and black carbon (BC), is an important climate forcing agent and contributes to glacier retreat in the Himalayas and the...- publication PDF
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Quasi-stationary, extreme-rain-producing convective systems associated with...
This study identifies and examines the common characteristics of several nocturnal midlatitude mesoscale convective systems (MCSs) that developed near mesoscale convective...- publication PDF
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Further results on moist nearly neutral flow over a ridge
In a recent study, the authors performed numerical simulations of moist nearly neutral flows over a ridge using the Weather Research and Forecasting (WRF) Model in a regime...- publication PDF
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Pollution influences on atmospheric composition and chemistry at high...
We analyze detailed atmospheric gas/aerosol composition data acquired during the 2008 NASA ARCTAS (Arctic Research of the Composition of the Troposphere from Aircraft and...- publication PDF
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Wintertime observations of tropical Northwest Atlantic aerosol properties...
The Atlantic Tradewind Ocean-Atmosphere Mesoscale Campaign (ATOMIC) took place from 7 January to 11 July 2020 in the tropical North Atlantic between the east coast of Barbados...- publication PDF