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Decadal predictability of North Atlantic blocking and the NAO
Can multi-annual variations in the frequency of North Atlantic atmospheric blocking and mid-latitude circulation regimes be skilfully predicted? Recent advances in seasonal...- publication PDF
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The effect of periodic variations of thermospheric density on CHAMP and GRACE orbits
In this paper thermosphere densities observed by the CHAMP and GRACE satellites and their orbital parameters are used to investigate the effect of periodic oscillations in...- publication PDF
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High winds generated by bow echoes. Part I: Overview of the Omaha bow echo 5...
An analysis of a bow echo that produced damaging winds exceeding F1 in intensity on the Fujita scale near Omaha, Nebraska, is shown. Part I of this study presents a combination...- publication PDF
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Glaciation of mixed-phase clouds: Insights from bulk model and...
Mixed-phase clouds affect precipitation and radiation differently from liquid and ice clouds, posing greater challenges to their representation in numerical simulations. Recent...- publication PDF
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Comparison of two turbulence parameterisations for the simulation of the...
In this work, we compare two different parameterisations for the wind velocity-component standard deviations. The first one is the (Hanna 1982) parameterisation, while the...- publication PDF
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Three-dimensional variational assimilation with a multivariate background...
This paper describes the three-dimensional variational (3D-Var) data assimilation (DA) system for the Model for Prediction Across Scales - Atmosphere with the Joint Effort for...- publication PDF
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The CHRONOS mission: Capability for sub-hourly synoptic observations of...
The CHRONOS space mission concept provides time-resolved abundance for emissions and transport studies of the highly variable and highly uncertain air pollutants carbon monoxide...- publication PDF
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Atlantic Meridional Overturning Circulation: Observed transport and variability
The Atlantic Meridional Overturning Circulation (AMOC) extends from the Southern Ocean to the northern North Atlantic, transporting heat northwards throughout the South and...- publication PDF
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Quantifying gravity wave forcing using scale invariance
Despite the increasing resolution, forcing on the mean circulation by resolved waves in general circulation models is not yet converging. Parameterization of the forcing remains...- publication PDF
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Theoretical collision efficiencies of cloud droplets at small Reynolds-numbers
An outline is presented of a new solution of the hydrodynamic equations for the motion of two spherical drops falling in a viscous fluid at small but non-zero Reynolds numbers....- publication PDF
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The effect of dynamics on mixed-phase clouds: Theoretical considerations
A theoretical framework has been developed describing nonequilibrium formation and maintenance of mixed-phase clouds. The necessary and sufficient conditions required to...- publication PDF
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Simulation of the Global Hydrological Cycle in the CCSM Community Atmosphere...
The seasonal and annual climatological behavior of selected components of the hydrological cycle are presented from coupled and uncoupled configurations of the atmospheric...- publication PDF
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Conceptualizing confidence: A multisited qualitative analysis in a severe...
Confidence is a concept important to weather prediction, shaping how risk information is created, shared, understood, and acted upon. For forecasters in the National Weather...- publication PDF
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Estimating the impacts of radiation belt electrons on atmospheric chemistry...
This study considers the impact of electron precipitation from Earth's radiation belts on atmospheric composition using observations from the NASA Van Allen Probes and NSF...- publication PDF
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On the uncertainty of radio occultation inversions in the lower troposphere
Development of radio-holographic inversion methods that solve for multipath propagation of radio occultation signals in the moist lower troposphere resulted in significant...- publication PDF
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The relationships among wind, horizontal pressure gradient, and turbulent...
Relationships among the horizontal pressure gradient, the Coriolis force, and the vertical momentum transport by turbulent fluxes are investigated using data collected from the...- publication PDF
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Possible connections of the opposite trends in Arctic and Antarctic sea-ice cover
Sea ice is an important component of the global climate system and a key indicator of climate change. A decreasing trend in Arctic sea-ice concentration is evident in recent...- publication PDF
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Contributions of clouds, surface albedos, and mixed-phase ice nucleation...
The Arctic radiation balance is strongly affected by clouds and surface albedo. Prior work has identified Arctic cloud liquid water path (LWP) and surface radiative flux biases...- publication PDF
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The Indian Summer monsoon during peaks in the 11 year sunspot cycle
An analysis of sea-level pressure anomalies at 14 sunspot peaks in the 11 year solar cycle in the Indian region in summer shows that the mean sea level pressure anomalies...- publication PDF
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Multimodel precipitation responses to removal of U.S. sulfur dioxide emissions
Emissions of aerosols and their precursors are declining due to policies enacted to protect human health, yet we currently lack a full understanding of the magnitude,...- publication PDF
