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Snow redistribution onto young sea ice: Observations and implications for...
Vertical heat conduction through young ice is a major source of wintertime sea ice growth in the Arctic. However, field observations indicate that young ice preferentially...- publication PDF
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The impact of dropsonde data on the performance of the NCEP global forecast...
The impact of assimilating dropsonde data from the 2020 Atmospheric River (AR) Reconnaissance (ARR) field campaign on operational numerical weather forecasts was assessed. Two...- publication PDF
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Observational constraints on glyoxal production from isoprene oxidation and...
We use a 0-D photochemical box model and a 3-D global chemistry-climate model, combined with observations from the NOAA Southeast Nexus (SENEX) aircraft campaign, to understand...- publication PDF
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Augmenting the double-Gaussian representation of atmospheric turbulence and...
Modern general circulation models continue to require parameterizations of subgrid transport due to planetary boundary layer (PBL) turbulence and convection. Some schemes that...- publication PDF
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Injection of lightning-produced NOx, water vapor, wildfire emissions, and...
During the Deep Convective Clouds and Chemistry (DC3) experiment in summer 2012, airborne measurements were performed in the anvil inflow/outflow of thunderstorms over the...- publication PDF
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Urbanization impact on regional climate and extreme weather: Current...
Urban environments lie at the confluence of social, cultural, and economic activities and have unique biophysical characteristics due to continued infrastructure development...- publication PDF
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A review and evaluation of planetary boundary layer parameterizations in...
This paper reviews the evolution of planetary boundary layer (PBL) parameterization schemes that have been used in the operational version of the Hurricane Weather Research and...- publication PDF
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Global climate impacts of fixing the southern ocean shortwave radiation bias...
A large, long-standing, and pervasive climate model bias is excessive absorbed shortwave radiation (ASR) over the midlatitude oceans, especially the Southern Ocean. This study...- publication PDF
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A modeling study of the responses of mesosphere and lower thermosphere winds...
Thermosphere Ionosphere Mesosphere Electrodynamics General Circulation Model (TIMEGCM) simulations are diagnostically analyzed to investigate the causes of mesosphere and lower...- publication PDF
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A Comparison of the CIR- and CME-induced geomagnetic activity effects on...
Neutral temperature responses in the mesosphere and lower thermosphere (MLT) to severe geomagnetic storms induced by coronal mass ejections (CMEs) are of growing interest to the...- publication PDF
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Progress in observations and simulations of global change in the upper atmosphere
Anthropogenic increases of greenhouse gases warm the troposphere but have a cooling effect in the middle and upper atmosphere. The steady increase of CO₂ is the dominant cause...- publication PDF
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Analysis and forecasting of the low-level wind during the Sydney 2000...
During the Sydney 2000 Forecast Demonstration Project (FDP) a four-dimensional variational assimilation (4DVAR) scheme was run to analyze the low-level wind field with high...- publication PDF
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The 3-4 week MJO prediction skill in a GFDL coupled model
Based on a new version of the Geophysical Fluid Dynamics Laboratory (GFDL) coupled model, the Madden-Julian oscillation (MJO) prediction skill in boreal wintertime (November-...- publication PDF
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Do southern ocean cloud feedbacks matter for 21st century warming?
Cloud phase improvements in a state-of-the-art climate model produce a large 1.5K increase in equilibrium climate sensitivity (ECS, the surface warming in response to...- publication PDF
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The NCAR Local Network
This document is in two sections. The first is intended for the general user of the NCAR Local Network. It describes in "cookbook" fashion the operation of the Network. A...- publication PDF
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Characteristics of deep tropical and subtropical convection from...
This paper presents observations of deep convection characteristics in the tropics and subtropics that have been classified into four categories: tropical cyclone, oceanic,...- publication PDF
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Temporal evolution of nightglow emission responses to SSW events observed by...
Using the SSW (Stratospheric Sudden Warming) event in 2009 as a representative case, the temporal evolution of the responses of OH and O₂ infrared atmospheric (0-0) nightglow...- publication PDF
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Cloud activating properties of aerosol observed during CELTIC
Measurements of aerosol size distribution, chemical composition, and cloud condensation nuclei (CCN) concentration were performed during the Chemical Emission, Loss,...- publication PDF
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The impact of smoke on the ultraviolet and visible radiative forcing under...
The quantification of the UV characteristics of smoke aerosols is valuable to UV Index forecasting, air quality studies, air chemistry studies, and assessments of the impacts on...- publication PDF
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Tropical and extratropical influences on the variability of the southern...
Interannual variability of the Southern Hemisphere subtropical jet (STJ) is assessed using atmospheric reanalyses during 1979-2018. The focus is on the austral winter season...- publication PDF
