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The dynamics of observed lee waves over the Snæfellsnes Peninsula in Iceland
On 20 October 2016, aircraft observations documented a significant train of lee waves above and downstream of the Sn AE fellsnes Peninsula on the west coast of Iceland....- publication PDF
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A generalized navigation correction method for airborne Doppler radar data
Uncertainties in aircraft inertial navigation system and radar-pointing angles can have a large impact on the accuracy of airborne dual-Doppler analyses. The Testud et al. (THL)...- publication PDF
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Do we know our own tornado season? A psychological investigation of...
Reducing fatalities from tornadoes in the southeastern United States requires considering multiple societal factors, including the risk perceptions that influence how people...- publication PDF
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Estimating snow microphysical properties using collocated multisensor observations
The ability of ground-based in situ and remote sensing observations to constrain microphysical properties for dry snow is examined using a Bayesian optimal estimation retrieval...- publication PDF
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Disturbances in North American boreal forest and Arctic tundra: impacts,...
Ecosystems in the North American Arctic-Boreal Zone (ABZ) experience a diverse set of disturbances associated with wildfire, permafrost dynamics, geomorphic processes, insect...- publication PDF
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Impacts of subgrid-scale orography parameterization on simulated surface...
This paper reports on the first attempt to investigate whether excessive precipitation over mountainous areas, which is a common problem in model simulations, could be remedied...- publication PDF
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The middle atmospheric ozone response to the 11-year solar cycle
Because of its chemical and radiative properties, atmospheric ozone constitutes a key element of the Earth's climate system. Absorption of sunlight by ozone in the ultraviolet...- publication PDF
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Comparative statistical study of characteristics of plasma in planar and...
Planar magnetic structures (PMS) are often observed in sheath regions driven by interplanetary coronal mass ejections (ICMEs) and in corotating interaction regions (CIRs). Here,...- publication PDF
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Effects of trans-Eurasian transport of air pollutants on surface ozone...
Due to a lack of industrialization in Western China, surface air there was, until recently, believed to be relatively unpolluted. However, recent measurements and modeling...- publication PDF
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The viability of trajectory analysis for diagnosing dynamical and chemical...
To evaluate the utility of trajectory analysis in the tropical upper troposphere/lower stratosphere, Lagrangian predictions of ozone mixing ratio are compared to observations...- 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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Profiles of ionospheric storm-enhanced density during the 17 March 2015 great storm
Ionospheric F₂ region peak densities (NmF2) are expected to have a positive correlation with total electron content (TEC), and electron densities usually show an anticorrelation...- publication PDF
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Robust and nonrobust aspects of Atlantic meridional overturning circulation...
Robust and nonrobust aspects of Atlantic meridional overturning circulation (AMOC) variability and mechanisms are analyzed in several 600-yr simulations with the Community Earth...- publication PDF
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An Overview of the Scientific Computing Division
This document is an expanded revision of An Overview of NCAR's Computing Environment (NCAR/TN-177+IA). It contains a new chapter describing the various departments within SCD...- publication PDF
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High-resolution calculations of the solar global convection with the reduced...
We carry out non-rotating high-resolution calculations of the solar global convection, which resolve convective scales of less than 10 Mm. To cope with the low Mach number...- publication PDF
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Seasonal variation of thermospheric composition observed by NASA GOLD
We examine characteristics of the seasonal variation of thermospheric composition using column number density ratio n-ary sumation O/N-2 observed by the NASA Global Observations...- publication PDF
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Evidence of long-term change in zonal wind in the tropical lower mesosphere:...
In recent years, the mesosphere (50 to 85-100 km) has evoked great scientific interest as long-term changes due to global warming can be clearly captured due to the large...- publication PDF
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Seasonal prediction of winter extreme precipitation over Canada by support...
For forecasting the maximum 5-day accumulated precipitation over the winter season at lead times of 3, 6, 9 and 12 months over Canada from 1950 to 2007, two nonlinear and two...- publication PDF
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Comments on "Application of the Lighthill-Ford Theory of spontaneous...
This article does not have an abstract or article summary.- publication PDF
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A comparison of breeding and ensemble transform Kalman filter ensemble...
The ensemble transform Kalman filter (ETKF) ensemble forecast scheme is introduced and compared with both a simple and a masked breeding scheme. Instead of directly multiplying...- publication PDF
