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The evolution and structure of extreme optical lightning flashes
This study documents the composition, morphology, and motion of extreme optical lightning flashes observed by the Lightning Imaging Sensor (LIS). The furthest separation of LIS...- publication PDF
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Chemical (Atmospheric) and Biological Measurements in Panama. Volume 1: General
This report presents the chemical measurements made by the Atmospheric Chemistry Group of the National Center for Atmospheric Research (NCAR) for the project, Trace Chemistry of...- publication PDF
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Comparison of the economic impact of different wind power forecast systems...
Deterministic forecasts of wind production for the next 72 h at a single wind farm or at the regional level are among the main end-users requirement. However, for an optimal...- publication PDF
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Latitudinal variations of middle thermosphere: Observations and modeling
Ching and Carter (1974) reported an equatorial bugle of midnight mass density at about 230 km on the basis of ion gauge measurements in April 1972. However, since then few...- publication PDF
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Applicability of condensation particle counters to measure atmospheric clusters
This study presents an evaluation of a pulse height condensation particle counter (PH-CPC) and an expansion condensation particle counter (E-CPC) in terms of measuring ambient...- publication PDF
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Desert dust and anthropogenic aerosol interactions in the Community Climate...
Coupled-carbon-climate simulations are an essential tool for predicting the impact of human activity onto the climate and biogeochemistry. Here we incorporate prognostic desert...- publication PDF
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A coupled air - sea response mechanism to solar forcing in the Pacific region
The 11-yr solar cycle [decadal solar oscillation (DSO)] at its peaks strengthens the climatological precipitation maxima in the tropical Pacific during northern winter. Results...- publication PDF
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Modelling global tropical cyclone wind footprints
A novel approach to modelling the surface wind field of landfalling tropical cyclones (TCs) is presented. The modelling system simulates the evolution of the low-level wind...- publication PDF
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On the role of sea-state in bubble-mediated air-sea gas flux during a winter storm
Oceanic bubbles play an important role in the air-sea exchange of weakly soluble gases at moderate to high wind speeds. A Lagrangian bubble model embedded in a large eddy...- publication PDF
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Understanding diverse model projections of future extreme El Niño
The majority of future projections in the Coupled Model Intercomparison Project (CMIP5) show more frequent exceedances of the 5 mm dayâ1 rainfall threshold in the eastern...- publication PDF
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Effects of local-scale orography and urban heat island on the initiation of...
A record-breaking rainfall event was initiated between the urban heat island (UHI) and a small trumpet-shaped mountain (Huadu Mountain) to its north in Guangzhou City at...- publication PDF
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Temperature extremes in the Community Atmosphere Model with stochastic...
This paper evaluates the performance of the NCAR Community Atmosphere Model, version 4 (CAM4), in simulating observed annual extremes of near-surface temperature and provides...- publication PDF
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Characterization and nonparametric regression of rural and urban coarse...
The Colorado Coarse Rural Urban Sources and Health study (CCRUSH) is an ongoing study of the relationship between coarse particulate mass concentrations (PMââââ.â ,...- publication PDF
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Mapping the lateral development of lightning flashes from orbit
Optical lightning measurements from the Lightning Imaging Sensor (LIS) are used to map the lateral development of lightning flashes and produce statistics that describe their...- publication PDF
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Processing of Doppler spectra collected by an airborne cloud radar for the...
Observations from the HIAPER Cloud Radar (HCR) are used to develop a methodology to calculate Doppler spectra from an airborne platform. The method removes spectral noise and...- publication PDF
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Advancing global and regional reanalyses
This report outlines the structure of and summarizes the recommendations made at the Fifth International Conference on Reanalysis (ICR5), attended by 259 participants from 37...- publication PDF
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Effects of white roofs on urban temperature in a global climate model
Increasing the albedo of urban surfaces has received attention as a strategy to mitigate urban heat islands. Here, the effects of globally installing white roofs are assessed...- publication PDF
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Seasonally resolved distributional trends of North American temperatures...
There is considerable interest in determining whether recent changes in the temperature distribution extend beyond simple shifts in the mean. The authors present a framework...- publication PDF
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Dependence of turbulent velocities on wind speed and stratification
We examine the dependence of several turbulence quantities on the wind speed and stability using nocturnal data from the Shallow Cold Pool Experiment. The turbulent quantities...- publication PDF
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NCAR Graphics Autograph: A Graphing Utility : Version 2.00
This report contains the technical manual for using the NCAR Graphics Autograph program.- publication PDF
