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Does regional hydroclimate change scale linearly with global warming?
Many aspects of climate change scale linearly with global warming. However, nonlinear changes are possible, especially in the context of hydroclimate, and under emissions...- publication PDF
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Large model structural uncertainty in global projections of urban heat waves
Urban heat waves (UHWs) are strongly associated with socioeconomic impacts. Here, we use an urban climate emulator combined with large ensemble global climate simulations to...- publication PDF
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Seasonally modulated stratospheric aerosol geoengineering alters the climate outcomes
By reflecting some incoming solar radiation, stratospheric aerosol intervention using SO2 would reduce global mean temperature. Previous research has shown that multiple...- publication PDF
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Boundary Subroutine for the NCAR Global Climate Model
This report summarizes the parameterizations of surface processes currently being used in the NCAR grid point GCM. It treats in particular: (i) the calculation of ground, snow...- publication PDF
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Parameterization of size of organic and secondary inorganic aerosol for...
Accurate representation of aerosol optical properties is essential for the modeling and remote sensing of atmospheric aerosols. Although aerosol optical properties are strongly...- publication PDF
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Comparison of methods to determine tropical tropopause layer cirrus...
A new method of estimating Tropical Tropopause Layer Cirrus (TTLC) formation mechanism (object method) is compared to interpretations of formation from previous studies using...- publication PDF
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On the determination of age of air trends from atmospheric trace species
Trace chemical species have been used in numerical models to calculate the age of air (AOA), which is a measure of the strength of the mean meridional circulation. The trend in...- publication PDF
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Assessing two approaches for enhancing the range of simulated scales in the...
Improving the representation of precipitation in Earth system models is essential for understanding and projecting water cycle changes across scales. Progress has been hampered...- publication PDF
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Transport of mesospheric H₂O during and after the stratospheric sudden...
The transportable ground based microwave radiometer MIAWARA-C monitored the upper stratospheric and lower mesospheric (USLM) water vapor distribution over Sodankylä, Finland...- publication PDF
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Improved cloud-phase determination of low-level liquid and mixed-phase...
The unambiguous retrieval of cloud phase from polarimetric lidar observations is dependent on the assumption that only cloud scattering processes affect polarization...- publication PDF
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Predicting the severity of spurious “double ITCZ” problem in CMIP5 coupled...
The severity of the double Intertropical Convergence Zone (DI) problem in climate models can be measured by a tropical precipitation asymmetry index (PAI), indicating whether...- publication PDF
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A case study of radar observations and WRF LES simulations of the impact of...
Profiling airborne radar data and accompanying large-eddy-simulation (LES) modeling are used to examine the impact of ground-based glaciogenic seeding on cloud and precipitation...- publication PDF
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Recent warming of landfalling atmospheric rivers along the west coast of the...
Atmospheric rivers (ARs) often generate extreme precipitation, with AR temperature strongly influencing hydrologic impacts by altering the timing and magnitude of runoff....- publication PDF
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Climatic drivers of deglacial SST variability in the Eastern Pacific
We explore the response of northeastern Pacific sea surface temperature (SST) to deglacial (similar to 16-7 ka) climate variability as recorded in U37K '-based SST...- publication PDF
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Rotational transport on a sphere: Local node refinement for radial basis functions
This paper develops an algorithm for radial basis function (RBF) local node refinement and implements it for vortex roll-up and transport on a sphere. A heuristic based on an...- publication PDF
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WACCM climate chemistry sensitivity to sprite perturbations
Transient luminous events affect Earth's atmosphere between thunderstorm tops and the lower ionosphere through ion-neutral chemistry reactions. Particular emphasis has been...- publication PDF
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Undisturbed and disturbed above canopy ponderosa pine emissions: PTR-TOF-MS...
We present the first eddy covariance flux measurements of volatile organic compounds (VOCs) using a proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS) above...- publication PDF
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The vertical vorticity structure within a squall line observed during BAMEX:...
A quasi-linear convective line with a trailing stratiform region developed during the Bow Echo and Mesoscale Convective Vortex Experiment (BAMEX) while being sampled by two...- publication PDF
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Understanding the risks from extreme rainfall
Empirical engineering design based on single 'fail safe' target return periods is not appropriate in a non-stationary future climate. Extreme responses to rainfall are very...- publication PDF
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Impact of increasing heat waves on U.S. ozone episodes in the 2050s: Results...
We develop a statistical model using extreme value theory to estimate the 2000-2050 changes in ozone episodes across the United States. We model the relationships between daily...- publication PDF
