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Our skill in modeling mountain rain and snow is bypassing the skill of our ob...
In mountain terrain, well-configured high-resolution atmospheric models are able to simulate total annual rain and snowfall better than spatial estimates derived from in situ...- publication PDF
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A 4-D climatology (1979-2009) of the monthly tropospheric aerosol optical dep...
Since the 1980s several spaceborne sensors have been used to retrieve the aerosol optical depth (AOD) over the Mediterranean region. In parallel, AOD climatologies coming from...- publication PDF
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Contrail cirrus supporting areas in model and observations
Contrails form and persist dependent on the surrounding moisture, temperature and pressure fields and on fuel and aircraft specific variables. After formation, contrail...- publication PDF
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Oxidation of mercury by bromine in the subtropical Pacific free troposphere
Mercury is a global toxin that can be introduced to ecosystems through atmospheric deposition. Mercury oxidation is thought to occur in the free troposphere by bromine radicals,...- publication PDF
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SO2 observations and sources in the Western Pacific
Sulfur dioxide (SO2) is one of the primary source gases for aerosols in the atmosphere. Even at low concentrations, its presence in the upper troposphere and lower stratosphere...- publication PDF
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Observations of Aerosols Over Northeastern Colorado
The relations between atmospheric aerosols and cloud dynamics were examined in a field study conducted in northeastern Colorado during the summer of 1968. The results of this...- publication PDF
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Newly discovered source of turbulence and heating in the solar chromosphere
Above the Sun's luminous photosphere lies the solar chromosphere, where the temperature increases from below 4000 K to over 1 million K. Though physicists do not understand the...- publication PDF
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Process-specific contributions to anomalous Java mixed layer cooling during p...
Negative sea surface temperature (SST) anomalies associated with positive Indian Ocean Dipole (pIOD) events first appear in the seasonal upwelling zone along the southern coast...- publication PDF
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Formation of Alfvén wave ducts by magnetotail flow bursts
Geomagnetic activity in Earth's outer magnetosphere stimulates intense and sometimes explosive flows of electromagnetic power propagating earthward as Alfven waves. Observations...- publication PDF
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Better calibration of cloud parameterizations and subgrid effects increases t...
Realistic simulation of the Earth's mean-state climate remains a major challenge, and yet it is crucial for predicting the climate system in transition. Deficiencies in models'...- publication PDF
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The role of sulfur dioxide in stratospheric aerosol formation evaluated by us...
Stratospheric aerosols (SAs) are a variable component of the Earth's albedo that may be intentionally enhanced in the future to offset greenhouse gases (geoengineering). The...- publication PDF
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Eclipse-induced changes to topside ion composition and field-aligned ion flow...
We present in situ ion composition and velocity measurements during the August 2017 solar eclipse from the Enhanced Polar Outflow Probe (e-POP), which crossed the path of...- publication PDF
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Dual constant-flux energy cascades to both large scales and small scales
In this paper, we present an overview of concepts and data concerning inverse cascades of excitation towards scales larger than the forcing scale in a variety of contexts, from...- publication PDF
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Project Clambake Surface Wind Analysis at Palestine, Texas
The Field Observing Facility of NCAR measured surface winds at the NCAR Scientific Balloon Flight Station at Palestine, Texas, during October and November 1965 in order to...- publication PDF
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The effect of horizontal resolution on simulation quality in the Community At...
We present an analysis of version 5.1 of the Community Atmospheric Model (CAM5.1) at a high horizontal resolution. Intercomparison of this global model at approximately 0.25°,...- publication PDF
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Kalman filter and analog schemes to post-process numerical weather predictions
Two new post-processing methods are proposed to reduce numerical-weather-prediction s systematic and random errors. The first method (ANKF) consists of running a post-processing...- publication PDF
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Techniques for the Processing, Storage, and Exchange of Data
This document discusses selected aspects of the NCAR computer hardware systems and some of the considerations involved in choosing data formats. It also describe some of the...- publication PDF
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Low‐latitude zonal ion drifts and their relationship with subauroral polariza...
We analyze horizontal plasma drifts measured by the Defense Meteorological Satellite Program satellites during two intense magnetic storms. It is found, for the first time, that...- publication PDF
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The transition from geostrophic to stratified turbulence
We present numerical simulations of forced rotating stratified turbulence dominated by vortical motion (i.e. with potential vorticity). Strong stratification and various...- publication PDF
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A study on local‐scale thermal and dynamical mechanisms in the initiation of ...
A convective system was initiated under weak forcing on the plains near Beijing on the afternoon of 26 June 2009 and developed into a squall line that resulted in heavy...- publication PDF
