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Comparison of ensemble Kalman filters under non-Gaussianity
Recently various versions of ensemble Kalman filters (EnKFs) have been proposed and studied. This work concerns, in a mathematically rigorous manner, the relative performance of...- publication PDF
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Global 3-D ionospheric electron density reanalysis based on multisource data...
We report preliminary results of a global 3-D ionospheric electron density reanalysis demonstration study during 2002-2011 based on multisource data assimilation. The monthly...- publication PDF
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On the importance of precipitation‐induced surface sensible heat flux for...
The Maritime Continent (MC) exhibits a pronounced diurnal cycle in precipitation, with many high‐resolution models overestimating the diurnal peak and predicting earlier...- publication PDF
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Dynamics of the transition from spiral rainbands to a secondary eyewall in...
Airborne Doppler radar captured the inner core of Hurricane Earl during the early stages of secondary eyewall formation (SEF), providing needed insight into the SEF dynamics. An...- publication PDF
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Transport pathways of carbon monoxide in the Asian summer monsoon diagnosed...
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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The anomalous ionosphere between solar cycles 23 and 24
The solar minimum period during 2008-2009 was characterized by lower thermospheric density than the previous solar minimum and lower than any previously measured. Recent work...- publication PDF
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Mesoscale Model Evaluation Testbed (MMET): A Resource for Transitioning NWP...
A wide range of numerical weather prediction (NWP) innovations are under development in the research community that have the potential to positively impact operational models....- publication PDF
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Global and regional patterns in high ice water content conditions
Conditions of high ice water content (HIWC; defined herein as at least 1.0 g m(-3)) are often found in the anvils of convective systems and can cause engine damage and/or...- publication PDF
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Mesoscale convective vortex formation in a weakly sheared moist neutral environment
Idealized simulations of a diabatic Rossby vortex (DRV) in an initially moist neutral baroclinic environment are performed using the fifth-generation National Center for...- publication PDF
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The impact of Stratospheric Aerosol Injection on extreme fire weather risk
Stratospheric aerosol injection (SAI) would potentially be effective in limiting global warming and preserving large-scale temperature patterns; however, there are still gaps in...- publication PDF
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Modeling stomatal conductance in the earth system: Linking leaf water-use...
The Ball-Berry stomatal conductance model is commonly used in earth system models to simulate biotic regulation of evapotranspiration. However, the dependence of stomatal...- publication PDF
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Analyzing the Grell-Freitas convection scheme from hydrostatic to...
The authors implemented the Grell-Freitas (GF) parameterization of convection in which the cloud-base mass flux varies quadratically as a function of the convective updraft...- publication PDF
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Algorithm development of temperature and humidity profile retrievals for...
A project for deriving temperature and humidity profiles from High-resolution Infrared Radiation Sounder (HIRS) observations is underway to build a long-term dataset for climate...- publication PDF
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Observational constraints on atmospheric and oceanic cross-equatorial heat...
Satellite based top-of-atmosphere (TOA) and surface radiation budget observations are combined with mass corrected vertically integrated atmospheric energy divergence and...- publication PDF
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Estimating continuous-coverage instantaneous precipitation rates using...
This study demonstrates a method of temporally and spatially scaling precipitation rates at low probability of precipitation-rate exceedance levels (e.g., 0.1%) from coarser-...- publication PDF
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Dynamical and chemical characteristics of tropospheric intrusions observed...
Intrusions of air from the tropical upper troposphere into the extratropical stratosphere above the subtropical jet potentially have a significant impact on the composition of...- publication PDF
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Climatic controls on the isotopic composition and availability of soil...
While tropical forests play a critical role in global carbon (C) and nitrogen (N) cycles, how their biogeochemical dynamics will respond to changes in climate, especially...- publication PDF
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Rethinking the role of transport and photochemistry in regional ozone...
Understanding the role of transport and photochemistry is essential to mitigate tropospheric ozone (O-3) pollution within a region. In previous studies, the O-3 concentration...- publication PDF
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Stereoscopic monitoring: A promising strategy to advance diagnostic and...
Monitoring and modeling/predicting air pollution are crucial to understanding the links between emissions and air pollution levels, to supporting air quality management, and to...- publication PDF
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Electrodynamical coupling of the geospace system during solar flares
Reduced daytime upward ExB drifts and weakened fountain effects in equatorial ionosphere have been frequently observed during the initial stage of solar flares. The cause of...- publication PDF
