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The tangent-linear and adjoint models of the NEPTUNE dynamical core
An approximate tangent-linear model and its adjoint have been developed for the dynamical core of the NEPTUNE model (Navy Environmental Prediction sysTem Utilizing a...- publication PDF
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Wavenumber broadening of the quasi 2 day planetary wave in the ionosphere
Using the Thermosphere Ionosphere Mesosphere Electrodynamics General Circulation Model, we investigate the observed zonal wavenumber broadening phenomena in the ionospheric...- publication PDF
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A wing pod-based millimeter wavelength airborne cloud radar
This paper describes a novel, airborne pod-based millimeter wavelength radar. Its frequency of operation is 94 GHz (3 mm wavelength). The radar has been designed to fly on the...- publication PDF
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Low-ozone bubbles observed in the tropical tropopause layer during the TC4...
In the summer of 2007, the NASA DC-8 aircraft took part in the Tropical Composition, Cloud and Climate Coupling campaign based in San Jose, Costa Rica. During this campaign,...- 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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North Atlantic cooling triggered a zonal mode over the Indian Ocean during...
Abrupt changes in the Atlantic meridional overturning circulation (AMOC) are thought to affect tropical hydro -climate through adjustment of the latitudinal position of the...- publication PDF
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Multiple new-particle growth pathways observed at the US DOE Southern Great...
New-particle formation (NPF) is a significant source of aerosol particles into the atmosphere. However, these particles are initially too small to have climatic importance and...- publication PDF
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Weather forecast uncertainty information: An exploratory study with...
This article does not have an abstract or article summary.- publication PDF
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Localizing the impact of satellite radiance observations using a global...
Assimilation of satellite radiances has been proven to have positive impacts on the forecast skill, especially for regions with sparse conventional observations. Localization is...- publication PDF
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New global meteoric smoke observations from SOFIE: Insight regarding...
Measurements from the Solar Occultation For Ice Experiment (SOFIE) in both hemispheres are used to characterize meteoric smoke in the mesosphere and to estimate the meteoric...- publication PDF
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Nitrous acid (HONO) during polar spring in Barrow, Alaska: A net source of...
HONO was measured by a LOPAP instrument (LOng Path Absorption Photometer) for one month during the OASIS spring 2009 campaign in Barrow, Alaska. HONO concentrations between ≤...- publication PDF
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Neutral winds from mesosphere to thermosphere -- past, present, and future outlook
The Earth's upper atmosphere (85-550 km) is the nearest region of geospace and is highly dynamic in nature. Neutral winds impact a large portion of the dynamics in this region....- publication PDF
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Multidisciplinary analysis of an usual tornado: Meteorology, climatology,...
On 22 May 2008, a strong tornado—rated EF3 on the enhanced Fujita scale, with winds estimated between 136 and 165 mi h⁻ ¹ (61 and 74 m s⁻ ¹)—caused extensive damage along a...- publication PDF
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Beyond Machoflops: Getting MPPs Into the Production Environment
In the continuing pursuit of the highest performance, many parallel computer manufacturers are trying to harness the promise of "killer micros" to deliver higher and higher...- publication PDF
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Predicting magnetopause crossings at geosynchronous orbit during the Halloween storms
In late October and early November of 2003, the Sun unleashed a powerful series of events known as the Halloween storms. The coronal mass ejections launched by the Sun produced...- publication PDF
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Earth's Van Allen radiation belts: From discovery to the Van Allen probes era
Discovery of the Earth's Van Allen radiation belts by instruments flown on Explorer 1 in 1958 was the first major discovery of the Space Age. The observation of distinct inner...- publication PDF
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On the consequences of PBL scheme diffusion on UTLS wave and turbulence...
Mesoscale numerical weather prediction (NWP) models are routinely exercised at kilometer-scale horizontal grid spacings (Delta x). Such fine grids will usually allow at least...- publication PDF
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Improving tropical cyclone forecast communication by understanding NWS...
As tropical cyclone threats evolve, broadcast meteorologists and emergency managers rely on timely forecast information to help them communicate risk with the public and protect...- publication PDF
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Niwot Ridge Remote Meteorological Data Acquisition Station
NCAR maintains a self-powered, automatic, meteorological data acquisition station on the Niwot Ridge (12,300 ft elevation) of the Continental Divide, approximately 12 mi...- publication PDF
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The COSMIC/FORMOSAT-3 Mission: Early results
The radio occultation (RO) technique, which makes use of radio signals transmitted by the global positioning system (GPS) satellites, has emerged as a powerful and relatively...- publication PDF
