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Observational evidence of horizontal transport-driven dehydration in the TTL
A recent airborne study obtained extensive measurements in the tropical tropopause layer (TTL) over the western Pacific and provided the first opportunity to examine the...- publication PDF
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Ash particles detected in the tropical lower stratosphere
We report here on measurements of relatively large (up to â5-μm maximum dimension) particles detected in the tropical western Pacific lower stratosphere. The particles were...- publication PDF
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Improving ECC ozonesonde data quality: Assessment of current methods and...
We review the current state of knowledge of ozonesonde uncertainty and bias, with reference to recent developments in laboratory and field experiments. In the past 20îyears...- publication PDF
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Adaptive localization for satellite radiance observations in an ensemble...
Localization is essential to effectively assimilate satellite radiances in ensemble Kalman filters. However, the vertical location and separation from a model grid point...- publication PDF
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The evaporative demand drought index. Part II: CONUS-wide assessment against...
Precipitation, soil moisture, and air temperature are the most commonly used climate variables to monitor drought; however, other climatic factors such as solar radiation, wind...- publication PDF
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What controls stratospheric water vapor in the NH summer monsoon regions?
Water vapor in the lower stratosphere exhibits localized maximum values during Northern Hemisphere summer in the Asian and North American (NA) monsoon regions. The processes...- publication PDF
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Global Atmospheric Circulation Statistics, 1000-1 mb
This atlas presents atmospheric general circulation statistics derived from twelve years (1979-1990) of daily National Meteorological Center (NMC) operational geopotential...- publication PDF
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Global atmospheric budget of acetaldehyde: 3-D model analysis and...
We construct a global atmospheric budget for acetaldehyde using a 3-D model of atmospheric chemistry (GEOS-Chem), and use an ensemble of observations to evaluate present...- publication PDF
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GAMERA: A three-dimensional finite-volume MHD solver for non-orthogonal...
Efficient simulation of plasmas in various contexts often involves the use of meshes that conform to the intrinsic geometry of the system under consideration. We present here a...- publication PDF
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First results for Solar Soft X-Ray irradiance measurements from the...
Three generations of the Miniature X-ray Solar Spectrometer (MinXSS) have flown on small satellites with the goal "to explore the energy distribution of soft X-ray (SXR)...- publication PDF
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The role of large-scale feedbacks in cumulus convection parameter estimation
Uncertainty in cumulus convection parameterization is one of the most important causes of model climate drift through interactions between large-scale background and local...- publication PDF
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The implementation of the ice-phase microphysical process into a...
The microphysical process of a cloud-scale model used by a four-dimensional Variational Doppler Radar Analysis System (VDRAS) is extended from its original warm rain...- publication PDF
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Global isoprene emissions estimated using MEGAN, ECMWF analyses and a...
The global emissions of isoprene are calculated at 0.5° resolution for each year between 1995 and 2006, based on the MEGAN (Model of Emissions of Gases and Aerosols from...- publication PDF
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The role of flare-driven ionospheric electron density changes on the doppler...
Trans-ionospheric high frequency (HF: 3-30 MHz) signals experience strong attenuation following a solar flare-driven sudden ionospheric disturbance (SID). Solar flare-driven HF...- publication PDF
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Regional energy and water cycles: Transports from ocean to land
The flows of energy and water from ocean to land are examined in the context of the land energy and water budgets, for land as a whole and for continents. Most atmospheric...- publication PDF
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Importance of the Antarctic Slope Current in the Southern Ocean response to...
We use two coupled climate models, GFDL-CM4 and GFDL-ESM4, to investigate the physical response of the Southern Ocean to changes in surface wind stress, Antarctic meltwater, and...- publication PDF
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The changing shape of Northern Hemisphere summer temperature distributions
The occurrence of recent summer temperature extremes in the midlatitudes has raised questions about whether and how the distributions of summer temperature are changing. While...- publication PDF
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Applying automated memory analysis to improve iterative algorithms
In this paper, we describe automated memory analysis, a technique to improve the memory efficiency of a sparse linear iterative solver. Our automated memory analysis uses a...- publication PDF
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Modification of near-wall coherent structures by inertial particles
Direct numerical simulations are combined with two-way coupled Lagrangian point particles to study the effect of Reynolds number on particle-turbulence interaction. Turbulent...- 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
