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Black carbon vertical profiles strongly affect its radiative forcing uncertainty
The impact of black carbon (BC) aerosols on the global radiation balance is not well constrained. Here twelve global aerosol models are used to show that at least 20% of the...- publication PDF
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The National Hail Research Experiment Summer 1972 Summary Report
This report gives a brief appraisal of the conduct of the first operational season of the National Hail Research Experiment at the end of July. Participants were asked to...- publication PDF
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Climate change from 1850 to 2005 simulated in CESM1(WACCM)
The NCAR Community Earth System Model (CESM) now includes an atmospheric component that extends in altitude to the lower thermosphere. This atmospheric model, known as the Whole...- publication PDF
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Interannual changes of stratospheric water vapor and correlations with...
Interannual variations of stratospheric water vapor over 1992-2003 are studied using Halogen Occultation Experiment (HALOE) satellite measurements. Interannual anomalies in...- publication PDF
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New insights into the complex interplay between drag forces and its...
Drag forces, ion and viscous, are evaluated as modifiers of global wind and temperature structure in the upper thermosphere, shedding new light on their relative roles in...- publication PDF
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OH, HO2, and RO2 radical chemistry in a rural forest environment:...
The hydroxyl (OH), hydroperoxy (HO2), and organic peroxy (RO2) radicals play important roles in atmospheric chemistry. In the presence of nitrogen oxides (NOx), reactions...- publication PDF
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Skillful prediction of monthly major hurricane activity in the North...
We investigate the monthly prediction of North Atlantic hurricane and especially major hurricane activity based on the Geophysical Fluid Dynamics Laboratory High-Resolution...- publication PDF
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Realizing a terrestrial reference frame using the Global Positioning System
We describe a terrestrial reference frame (TRF) realization based on Global Positioning System (GPS) data alone. Our approach rests on a highly dynamic, long-arc (9 day)...- publication PDF
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Terminal velocities and kinetic energies of natural hailstones
The physical properties of 2295 hailstones that developed in Great Plains (US) storms were measured, including their maximum dimension, mass, and cross-sectional area. Using...- publication PDF
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Enhancement of thermospheric mass density by soft electron precipitation
Enhancements in F-region electron density and temperature and bottomside Pedersen conductivity caused by soft electron precipitation are shown to enhance the Joule heating per...- publication PDF
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Auroral, ionospheric and ground magnetic signatures of magnetopause surface modes
Surface waves on Earth's magnetopause have a controlling effect upon global magnetospheric dynamics. Since spacecraft provide sparse in situ observation points, remote sensing...- publication PDF
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On the characteristics of aerosol indirect effect based on dynamic regimes...
Aerosolâcloud interactions continue to constitute a major source of uncertainty for the estimate of climate radiative forcing. The variation of aerosol indirect effects (AIE)...- publication PDF
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A scale-dependent blending scheme for WRFDA: Impact on regional weather forecasting
Due to limitation of the domain size and limited observations used in regional data assimilation and forecasting systems, regional forecasts suffer a general deficiency in...- publication PDF
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Toward low-level turbulence forecasting at eddy-resolving scales
Microscale turbulence in the atmospheric boundary layer (ABL) is characterized by significant spatiotemporal variability. Consequently, a change in the turbulence forecasting...- publication PDF
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The SCD Graphics Utilities
This manual documents the Graphics Utilities used by the Scientific Computing Division (SCD) at NCAR. The utilities are listed alphabetically by utility name.- publication PDF
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Combustion iron distribution and deposition
Iron is hypothesized to be an important micronutrient for ocean biota, thus modulating carbon dioxide uptake by the ocean biological pump. Studies have assumed that atmospheric...- 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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Aircraft testing of the new Blunt-body Aerosol Sampler (BASE)
There is limited understanding of the role of aerosols in the formation and modification of clouds, partly due to inadequate data on such systems. Aircraft-based aerosol...- publication PDF
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Initial development and testing of a convection-allowing model scorecard
Evaluation of numerical weather prediction (NWP) is critical for both forecasters and researchers. Through such evaluation, forecasters can understand the strengths and...- publication PDF
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Characterization of volatile organic compounds (VOCs) in Asian and north...
We present results from the Intercontinental Chemical Transport Experiment - Phase B (INTEX-B) aircraft mission conducted in spring 2006. By analyzing the mixing ratios of...- publication PDF
