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The 94-GHz radar dim band: Relevance to ice cloud properties and cloudsat
Details of the microphysics are shown to be responsible for a region of ice cloud which, when probed from above, has decreasing radar reflectivity (Ze ) downwards at 94 GHz but...- publication PDF
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Prolonged and pervasive perturbations in the composition of the Southern...
The 2019/2020 Australian New Year's wildfires injected record amounts of smoke and biomass burning products into the lower stratosphere. The Aura Microwave Limb Sounder (MLS)...- publication PDF
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Recent widening of the tropical belt: Evidence from tropopause observations
Radiosonde measurements and reanalysis data are used to examine long-term changes in tropopause behavior in the subtropics. Tropopause heights in the subtropics exhibit a...- publication PDF
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Cloudy and clear-sky relative humidity in the upper troposphere observed by...
This article does not have an abstract or article summary.- publication PDF
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Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016
After nearly three decades of observed increasing trends of Antarctic sea ice extent, in September-October-November 2016, there was a dramatic decrease. Here we document factors...- publication PDF
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Saturation of transpolar potential for large Y component interplanetary...
This study examines the response of the transpolar potential to a large Y component interplanetary magnetic field (IMF By). The transpolar potential responds nonlinearly and...- publication PDF
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Forward modeling of a pseudostreamer
In this paper, we present an analysis of a pseudostreamer embedding a filament cavity, observed on 2015 April 18 on the solar southwest limb. We use the flux-rope insertion...- publication PDF
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Reconciling reconstructed and simulated features of the winter Pacific/North...
Reconstructions of past climate behavior often describe prominent anomalous periods that are not necessarily captured in climate simulations. Here, we illustrate the contrast...- publication PDF
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Observations of gravity wave forcing of the mesopause region during the...
Studies of vertical and interhemispheric coupling during Sudden Stratospheric Warmings (SSWs) suggest that gravity wave (GW) momentum flux divergence plays a key role in forcing...- publication PDF
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Impact of the Polar Vortex on Sub-Seasonal O/N 2 Variability in the Lower...
We provide observational evidence that the stability of the stratospheric Polar vortex (PV) is a significant driver of sub-seasonal variability in the thermosphere during...- publication PDF
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Impacts of black carbon aerosol on photolysis and ozone
The regional distributions of black carbon aerosol ( soot) are calculated and the impacts of black carbon aerosol on photolysis frequencies and ozone concentrations are...- publication PDF
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A positive zonal wind feedback on sudden stratospheric warming development...
Sudden stratospheric warmings (SSWs) are an extreme weather event with impacts on the ionosphere and on tropospheric weather and predictability. The mechanisms governing their...- publication PDF
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Flexible vector-based spatial configurations in land models
Land models are increasingly used in terrestrial hydrology due to their process-oriented representation of water and energy fluxes. A priori specification of the grid size of...- publication PDF
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The Whole Atmosphere Community Climate Model Version 6 (WACCM6)
The Whole Atmosphere Community Climate Model version 6 (WACCM6) is a major update of the whole atmosphere modeling capability in the Community Earth System Model (CESM),...- publication PDF
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Variations in thermosphere composition and ionosphere total electron content...
We conducted observational and modeling studies of thermospheric composition and ionospheric total electron content (TEC) variations during two geomagnetically quiet periods...- publication PDF
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Robust global analysis of midâlatitude ionospheric Trough morphology
This study characterizes the main ionospheric trough (MIT) using a newly implemented detection method applied to ground‐based Global Navigation Satellite System data. The...- publication PDF
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Technical description of version 4.5 of the Community Land Model (CLM)
The purpose of this technical note is to describe the biogeophysical and biogeochemical parameterizations and numerical implementation of version 4.5 of the Community Land Model...- publication PDF
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Evaluating the detectability of methane point sources from satellite...
This study evaluates the efficacy of current satellite observing systems to detect methane point sources from typical oil and gas production (O&G) facilities using a novel...- publication PDF
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An intercomparison of total column-averaged nitrous oxide between...
Nitrous oxide (N2O) is an important greenhouse gas and it can also generate nitric oxide, which depletes ozone in the stratosphere. It is a common target species of ground-based...- publication PDF
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Anomalously low geomagnetic energy inputs during 2008 solar minimum
The record-low thermospheric density during the last solar minimum has been reported and it has been mainly explained as the consequence of the anomalously low solar extreme...- publication PDF
