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Assimilating compact phase space retrievals (CPSRs): Comparison with...
Assimilation of atmospheric composition retrievals presents computational challenges due to their high data volume and often sparse information density. Assimilation of compact...- publication PDF
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The impact of ice phase cloud parameterizations on tropical cyclone prediction
The impact of ice phase cloud microphysical processes on prediction of tropical cyclone environment is examined for two microphysical parameterizations using the Coupled Ocean-...- publication PDF
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SuperDARN assimilative mapping
An assimilative mapping procedure is developed to optimally combine information from Super Dual Auroral Radar Network (SuperDARN) plasma drift observations and a background...- publication PDF
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Wind Tunnel and Field Investigations of Shapes for Balloon Shelters
This report discusses the results of a series of wind tunnel and field tests performed in support of a program to develop a balloon inflation and launch shelter. The study...- publication PDF
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An evaluation of COSMIC radio occultation data in the lower atmosphere over...
The global positioning system (GPS) radio occultation (RO) method is a relatively new technique for taking atmospheric measurements for use in both weather and climate studies....- publication PDF
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On the mixing-driven formation of the Extratropical Transition Layer (ExTL)
We present a case study on the formation and structure of the Extratropical Transition Layer (ExTL) using in situ observations and a Lagrangian chemical transport model. The...- publication PDF
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The 6.5-day wave and its seasonal variability in the middle and upper atmosphere
The zonal wave number 1 planetary wave of period near 6.5 days is a robust feature in the mesosphere and lower thermosphere (MLT) region with prominent seasonal variability as...- publication PDF
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Evolution of an axisymmetric tropical cyclone before reaching slantwise...
In a previous study, the authors showed that the intensification process of a numerically simulated axisymmetric tropical cyclone (TC) can be divided into two periods denoted by...- publication PDF
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Injection of iodine to the stratosphere
We report a new estimation of the injection of iodine into the stratosphere based on novel daytime (solar zenith angle < 45°) aircraft observations in the tropical tropopause...- publication PDF
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Ozone production from the 2004 North American boreal fires
We examine the ozone production from boreal forest fires based on a case study of wildfires in Alaska and Canada in summer 2004. The model simulations were performed with the...- publication PDF
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Long�term trend of topside ionospheric electron density derived from DMSP...
In recent decades, significant efforts have been made to characterize and understand the global pattern of ionospheric long-term trend. However, little attention has been paid...- publication PDF
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Second-moment budgets and mixing intensity in the stably stratified...
The effect of horizontal temperature heterogeneity of the underlying surface on the turbulence structure and mixing intensity in the stably stratified boundary layer (SBL) is...- publication PDF
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Characterizing warm atmospheric boundary layer over land by combining Raman...
PBL plays a critical role in the atmosphere by transferring heat, moisture, and momentum. The warm PBL has a distinct diurnal cycle including daytime convective mixing layer...- publication PDF
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The impact of biomass heat storage on the canopy energy balance and...
Atmospheric models used for weather prediction and future climate projections rely on landmodels to calculate surface boundary conditions. Observations of near-surface states...- publication PDF
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Parameterization of urban characteristics for global climate modeling
To help understand potential effects of urbanization on climates of varying scales and effects of climate change on urban populations, urbanization must be included in global...- publication PDF
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Separating dynamic and thermodynamic impacts of climate change on daytime...
Climate change affects the dynamics and thermodynamics of moist convection. Changes in the dynamics concern, for instance, an increase of convection strength due to increases of...- publication PDF
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Estimating observation and model error variances using multiple data sets
In this paper we show how multiple data sets, including observations and models, can be combined using the "three-cornered hat" (3CH) method to estimate vertical profiles of the...- publication PDF
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Contrasting the use of single-realization versus ensemble-average...
Chemical and biological (CB) defense systems require significant testing and evaluation before they are deployed for real-time use. Because it is not feasible to evaluate these...- publication PDF
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A generalized navigation correction method for airborne Doppler radar data
Uncertainties in aircraft inertial navigation system and radar-pointing angles can have a large impact on the accuracy of airborne dual-Doppler analyses. The Testud et al. (THL)...- publication PDF
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Comparison of Lagrangian super-droplet and Eulerian double-moment spectral...
Advanced microphysics schemes (such as Eulerian bin and Lagrangian superdroplet) are becoming standard tools for cloud physics research and parameterization development. This...- publication PDF