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Sensitivity studies of dust ice nuclei effect on cirrus clouds with the...
In this study the effect of dust aerosol on upper tropospheric cirrus clouds through heterogeneous ice nucleation is investigated in the Community Atmospheric Model version 5...- publication PDF
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Satellites measure recent rates of groundwater depletion in California's...
In highly-productive agricultural areas such as California's Central Valley, where groundwater often supplies the bulk of the water required for irrigation, quantifying rates of...- publication PDF
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Recommendations on simple but transformative diversity, equity, and...
It is well established that, in order to perform at their peak ability, a person must feel accepted, safe, and valued at work. Therefore, it is imperative to bring Diversity,...- publication PDF
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Instrument intercomparison of glyoxal, methyl glyoxal and NO₂ under...
The α-dicarbonyl compounds glyoxal (CHOCHO) and methyl glyoxal (CH₃C(O)CHO) are produced in the atmosphere by the oxidation of hydrocarbons and emitted directly from pyrogenic...- publication PDF
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Duration of an ionospheric data assimilation of a coupled...
Initial conditions provide a critical input for accurate numerical forecast models in meteorology and oceanography. In this paper, we address this problem in space weather...- publication PDF
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Surface in situ datasets for marine climatological applications
Climatological products are required for monitoring and studying global climate change and accurately identifying secular trends over the past two centuries. These products...- publication PDF
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Observations of ozone-poor air in the tropical tropopause layer
Ozonesondes reaching the tropical tropopause layer (TTL) over the west Pacific have occasionally measured layers of very low ozone concentrations - less than 15 ppbv - raising...- publication PDF
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Anthropogenic influence on the drivers of the Western Cape drought 2015–2017
In the period 2015-2017, the Western Cape region has suffered from three consecutive years of below average rainfall-leading to a prolonged drought and acute water shortages,...- publication PDF
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How might recharge change under projected climate change in the Western U.S.?
Although groundwater is a major water resource in the western U.S., little research has been done on the impacts of climate change on groundwater storage and recharge in the...- publication PDF
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Explicit prediction of continental convection in a skillful...
We present a new global-to-regional model, cfvGFS, able to explicitly (without parameterization) represent convection over part of the Earth. This model couples the Geophysical...- publication PDF
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Three-dimensional convective–stratiform echo-type classification and...
The Echo Classification from COnvectivity (ECCO) algorithm identifies convective and stratiform types of radar echo in three dimensions. It is based on the calculation of...- publication PDF
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The abuse of popular performance metrics in hydrologic modeling
The goal of this commentary is to critically evaluate the use of popular performance metrics in hydrologic modeling. We focus on the Nash-Sutcliffe Efficiency (NSE) and the...- publication PDF
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Convective initiation near the Andes in subtropical South America
Satellite radar and radiometer data indicate that subtropical South America has some of the deepest and most extreme convective storms on Earth. This study uses the full 15-yr...- publication PDF
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Low-cost 63% efficient 2.5-kW UHF power amplifier for a wind profiler radar
This paper describes a low-cost 449-MHz 2.5-kW peak pulse amplifier for use in a wind profiling radar. New high-power LDMOS transistors are enabling the use of kilowatt level...- publication PDF
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Resolving size distribution of black carbon internally mixed with snow:...
We develop a stochastic aerosol-snow albedo model that explicitly resolves size distribution of aerosols internally mixed with various snow grains. We use the model to quantify...- publication PDF
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Attributing extreme events to climate change: A new frontier in a warming world
The emerging field of extreme-event attribution (EEA) seeks to answer the question: "Has climate change influenced the frequency, likelihood, and/or severity of individual...- publication PDF
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Proceedings of the 2022 Improving Scientific Software Conference
The Software Engineering Assembly (SEA) is a loosely structured group of software engineers and scientists who write scientific software, mostly but not only at NCAR and mostly...- publication PDF
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Validation of ECMWF and NCEP-NCAR reanalysis data in Antarctica
The European Center for Medium-Range Weather Forecast (ECMWF) Re-Analysis (ERA-40) and the National Centers for Environmental Prediction-National Center for Atmospheric Research...- publication PDF
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Modeling canopy-induced turbulence in the Earth system: A unified...
Land surface models used in climate models neglect the roughness sublayer and parameterize within-canopy turbulence in an ad hoc manner. We implemented a roughness sublayer...- publication PDF
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QBO changes in CMIP6 climate projections
Phase 6 of the Coupled-Model Intercomparison Project (CMIP6) is the first in which a significant number of models include a well-resolved stratosphere. Changes in equatorial...- publication PDF
