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Assimilating aerosol observations with a "hybrid" variational-ensemble data...
Total 550 nm aerosol optical depth, surface fine particulate matter (PM2.5), and meteorological observations were assimilated with continuously cycling three-dimensional...- publication PDF
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Equilibrium climate sensitivity: Is it accurate to use a slab ocean model?
The equilibrium climate sensitivity of a climate model is usually defined as the globally averaged equilibrium surface temperature response to a doubling of carbon dioxide. This...- publication PDF
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Earth System Model Evaluation Tool (ESMValTool) v2.0 – An extended set of...
The Earth System Model Evaluation Tool (ESMValTool) is a community diagnostics and performance metrics tool designed to improve comprehensive and routine evaluation of Earth...- publication PDF
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Antarctic shelf ocean warming and sea ice melt affected by projected El Niño changes
How the shelf ocean around Antarctica changes with warming is not well known. Here, the authors show that a projected increase in El Nino-Southern Oscillation variability...- publication PDF
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Evaluating simulations of interhemispheric transport: Interhemispheric...
Two recent studies using sulfur hexafluoride (SF6) observations to evaluate interhemispheric transport in two different ensembles of atmospheric chemistry models reached...- publication PDF
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North American extreme temperature events and related large scale...
The objective of this paper is to review statistical methods, dynamics, modeling efforts, and trends related to temperature extremes, with a focus upon extreme events of short...- publication PDF
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Assessing the ability of zonal δ18O contrast in benthic foraminifera to...
delta O-18 in foraminifera (delta O-18(c)) is a useful proxy for density, and the strength of the Atlantic Meridional Overturning Circulation (AMOC) can be reconstructed by the...- publication PDF
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Atmospheric amines and ammonia measured with a chemical ionization mass...
We report measurements of ambient amines and ammonia with a fast response chemical ionization mass spectrometer (CIMS) in a southeastern US forest and a moderately polluted...- publication PDF
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Practice and philosophy of climate model tuning across six US modeling centers
Model calibration (or "tuning") is a necessary part of developing and testing coupled ocean-atmosphere climate models regardless of their main scientific purpose. There is an...- publication PDF
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Assessing filtering of mountaintop CO₂ mole fractions for application to...
There is a widely recognized need to improve our understanding of biosphere-atmosphere carbon exchanges in areas of complex terrain including the United States Mountain West....- publication PDF
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A Description of the Advanced Research WRF Model Version 4.1
The Advanced Research WRF (ARW) model is a configuration of the Weather Research and Forecasting (WRF) model. This technical note describes the scientific and algorithmic...- publication PDF
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Spatial hierarchical modeling of precipitation extremes from a regional climate model
The goal of this work is to characterize the extreme precipitation simulated by a regional climate model (RCM) over its spatial domain. For this purpose, we develop a Bayesian...- publication PDF
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Persisting volcanic ash particles impact stratospheric SO2 lifetime and...
Volcanic ash is often neglected in climate simulations because ash particles are assumed to have a short atmospheric lifetime, and to not participate in sulfur chemistry. After...- publication PDF
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Impacts of subgrid temperature distribution along elevation bands in...
The implementation of elevation bands is a popular strategy to account for topographic heterogeneities in snowpack modeling. Here, we characterize the implications of subgrid...- publication PDF
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Improving the representation of polar snow and firn in the Community Earth...
In Earth system models, terrestrial snow is usually modeled by the land surface component. In most cases, these snow models have been developed with an emphasis on seasonal...- publication PDF
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The Southern Westerlies during the last glacial maximum in PMIP2 simulations
The Southern Hemisphere westerly winds are an important component of the climate system at hemispheric and global scales. Variations in their intensity and latitudinal position...- publication PDF
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Regional climate model projections for the State of Washington
Global climate models do not have sufficient spatial resolution to represent the atmospheric and land surface processes that determine the unique regional heterogeneity of the...- publication PDF
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Emission factors for open and domestic biomass burning for use in atmospheric models
Biomass burning (BB) is the second largest source of trace gases and the largest source of primary fine carbonaceous particles in the global troposphere. Many recent BB studies...- publication PDF
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The impact on the ozone layer of a potential fleet of civil hypersonic aircraft
The aeronautical community is currently researching technology that might lead to commercial hypersonic aircraft that would cruise at Mach 5-8 in the middle or upper...- publication PDF
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Evaluation of native Earth system model output with ESMValTool v2.6.0
Earth system models (ESMs) are state-of-the-art climate models that allow numerical simulations of the past, present-day, and future climate. To extend our understanding of the...- publication PDF