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Earth's atmosphere protects the biosphere from nearby supernovae
Geological evidence indicates that a supernova within 100 parsecs of Earth occurs around once per million years. Such nearby supernovas can produce an intense gamma-ray burst...- publication PDF
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A variational regularization of Abel transform for GPS radio occultation
In the Global Positioning System (GPS) radio occultation (RO) technique, the inverse Abel transform of measured bending angle (Abel inversion, hereafter AI) is the standard...- publication PDF
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Simulating real atmospheric boundary layers at gray-zone resolutions: How do...
Recent computational and modeling advances have led a diverse modeling community to experiment with atmospheric boundary layer (ABL) simulations at subkilometer horizontal...- publication PDF
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Simulation of energetic particle precipitation effects during the 2003-2004...
Energetic particle precipitation (EPP) during the 2003-2004 Arctic winter led to the production and subsequent transport of reactive odd nitrogen (NOx = NO + NO₂) from the...- publication PDF
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Impact of mesospheric intrusions on ozone-tracer relations in the...
Ozone-tracer relations are used to quantify chemical ozone loss in the polar vortices. The underlying assumptions for the application of this technique were extensively...- publication PDF
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The NCAR Master Mechanism of the Gas Phase Chemistry - Version 2.0
The NCAR Master Mechanism of the Gas Phase Chemistry is an explicit, highly detailed mechanism describing the gas phase chemical transformations that may occur in the...- publication PDF
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Chloromethanes in the North American troposphere and lower stratosphere over...
Aircraft observations of the four chloromethanes: carbon tetrachloride (CCl4), methyl chloride (CH3Cl), dichloromethane (CH2Cl2), and chloroform (CHCl3), collected over North...- publication PDF
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The reanalysis for the Global Ensemble Forecast System, version 12
NOAA has created a global reanalysis dataset, intended primarily for initialization of reforecasts for its Global Ensemble Forecast System, version 12 (GEFSv12), which provides...- publication PDF
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The radius and mass of the close solar twin 18 Scorpii derived from...
The growing interest in solar twins is motivated by the possibility of comparing them directly to the Sun. To carry on this kind of analysis, we need to know their physical...- publication PDF
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An improved representation of rimed snow and conversion to graupel in a...
This paper describes the development of a new multicomponent detailed bin ice microphysics scheme that predicts the number concentration of ice as well as the rime mass mixing...- publication PDF
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Improved hurricane track and intensity forecast using single field-of-view...
Hyperspectral infrared sounders such as the AIRS and IASI provide unprecedented global atmospheric temperature and moisture soundings with high vertical resolution and accuracy....- publication PDF
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Continental Hydrologic Intercomparison Project, Phase 1: A large-scale...
High-resolution, coupled, process-based hydrology models, in which subsurface, land-surface, and energy budget processes are represented, have been applied at the basin-scale to...- publication PDF
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Decadal climate prediction: Opportunities and challenges
The scientific understanding of Earth's climate system is now sufficiently developed to show that climate change from anthropogenic greenhouse gas forcing is already upon us,...- publication PDF
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Report on the MkIII Calibration and Quality Assurance Project
This report addresses the MkIII Calibration and Quality Assurance Project areas where effort needed to be applied were determined through an examination of current and...- publication PDF
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Flare location on the solar disk: Modeling the thermosphere and ionosphere response
Solar flare enhancements to the soft X-ray (XUV) and extreme ultraviolet (EUV) spectral irradiance depend on the location of the flare on the solar disk. Most emission lines in...- publication PDF
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Temperature-moisture dependence of the deep convective transition as a...
Properties of the transition to strong deep convection, as previously observed in satellite precipitation statistics, are analyzed using parcel stability computations and a...- publication PDF
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High-latitude stratospheric aerosol injection to preserve the Arctic
Stratospheric aerosol injection (SAI) has been shown in climate models to reduce some impacts of global warming in the Arctic, including the loss of sea ice, permafrost thaw,...- publication PDF
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Assessing the skill of the improved treatment of riverine freshwater in the...
Recent studies have explored the sensitivity of global ocean model simulations to the treatment of riverine freshwater and the representation of estuarine processes via an...- publication PDF
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Tropospheric Ozone Assessment Report
Our understanding of the processes that control the burden and budget of tropospheric ozone has changed dramatically over the last 60 years. Models are the key tools used to...- publication PDF
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An Atlas of Variations in the Solar Constant Caused by Sunspot Blocking and...
The purpose of this atlas is to present such a reconstruction for a period of slightly more than a century, for the use of atmospheric and solar physicists for whom a...- publication PDF
