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Climate drivers of Southern Ocean phytoplankton community composition and...
Southern Ocean phytoplankton production supports rich Antarctic marine ecosystems comprising copepods, krill, fish, seals, penguins, and whales. Anthropogenic climate change,...- publication PDF
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Observations of peroxyacetyl nitrate (PAN) in the upper troposphere by the...
Peroxyacetyl nitrate (CH₃CO·O₂NO₂, abbreviated as PAN) is a trace molecular species present in the troposphere and lower stratosphere due primarily to pollution from fuel...- publication PDF
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Obstacles to high-dimensional particle filtering
Particle filters are ensemble-based assimilation schemes that, unlike the ensemble Kalman filter, employ a fully nonlinear and non-Gaussian analysis step to compute the...- publication PDF
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Potential evidence for the onset of alfvénic turbulence in trans-equatorial...
This study investigates Coronal Multi-channel Polarimeter Doppler-shift observations of a large, off-limb, trans-equatorial loop system observed on 2012 April 10-11. Doppler-...- publication PDF
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Statistical study of foreshock Density Holes
Density holes (DHs), characterized by the correlating depletion of plasma density and magnetic field strength, are one of the transient structures frequently observed upstream...- publication PDF
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Climate-change-driven accelerated sea-level rise detected in the altimeter era
Using a 25-y time series of precision satellite altimeter data from TOPEX/Poseidon, Jason-1, Jason-2, and Jason-3, we estimate the climate-change-driven acceleration of global...- publication PDF
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Amplified North Atlantic warming in the late Pliocene by changes in Arctic gateways
Under previous reconstructions of late Pliocene boundary conditions, climate models have failed to reproduce the warm sea surface temperatures reconstructed in the North...- publication PDF
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The Pentagon SHIELD field program: Toward critical infrastructure protection
The Pentagon, and its 25,000+ occupants, represents a likely target for a future terrorist attack using chemical, biological, or radiological material released into the...- publication PDF
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Parameter estimation using data assimilation in an atmospheric general...
This study explores the viability of parameter estimation in the comprehensive general circulation model ECHAM6 using ensemble Kalman filter data assimilation techniques. Four...- publication PDF
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Role of moisture transport and recycling in characterizing droughts:...
We investigate the role of moisture transport and recycling in characterizing two recent drought events in Texas (2011) and the Upper Midwest (2012) by analyzing the...- publication PDF
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Condensational growth of drops formed on giant sea-salt aerosol particles
The most basic aspect of cloud formation is condensational growth onto cloud condensation nuclei (CCN). As such, condensational growth of cloud drops is often assumed to be a...- publication PDF
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Atmospheric OH reactivity in the western United States determined from...
Wildfire smoke contains numerous different reactive organic gases, many of which have only recently been identified and quantified. Consequently, their relative importance as an...- publication PDF
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Reducing aerosol forcing uncertainty by combining models with satellite and...
Aerosol forcing uncertainty represents the largest climate forcing uncertainty overall. Its magnitude has remained virtually undiminished over the past 20 years despite...- publication PDF
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The Helioseismic and Magnetic Imager (HMI) vector magnetic field pipeline:...
The Helioseismic and Magnetic Imager (HMI) began near-continuous full-disk solar measurements on 1 May 2010 from the Solar Dynamics Observatory (SDO). An automated processing...- publication PDF
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Relationship of multiwavelength radar measurements to ice microphysics from...
Coincident radar data with Doppler radar measurements at X, Ku, Ka, and W bands on the NASA ER-2 aircraft overflying the NASA P-3 aircraft acquiring in situ microphysical...- publication PDF
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The sensitivity of simulated shallow cumulus convection and cold pools to...
The sensitivity of nested WRF simulations of precipitating shallow marine cumuli and cold pools to microphysical parameterization is examined. The simulations differ only in...- publication PDF
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Decline and recovery of total column ozone using a multimodel time series analysis
Simulations of 15 coupled chemistry climate models, for the period 1960–2100, are presented. The models include a detailed stratosphere, as well as including a realistic...- publication PDF
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Difference frequency generation spectrometer for simultaneous multispecies detection
A difference-frequency generation based spectrometer system for simultaneous ultra-sensitive measurements of formaldehyde (CH₂O) and Methane (CH₄) is presented. A new...- publication PDF
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A scale-dependent blending scheme for WRFDA: Impact on regional weather forecasting
Due to limitation of the domain size and limited observations used in regional data assimilation and forecasting systems, regional forecasts suffer a general deficiency in...- publication PDF
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Mesoscale processes for super heavy rainfall of Typhoon Morakot (2009) over...
Within 100 h, a record-breaking rainfall, 2855 mm, was brought to Taiwan by typhoon Morakot in August 2009 resulting in devastating landslides and casualties. Analyses and...- publication PDF
