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How important is vegetation phenology for European climate and heat waves?
It has been hypothesized that vegetation phenology may play an important role for the midlatitude climate. This study investigates the impact of interannual and intraseasonal...- publication PDF
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A reanalysis system for the generation of mesoscale climatographies
The use of a mesoscale model-based four-dimensional data assimilation (FDDA) system for generating mesoscale climatographies is demonstrated. This dynamical downscaling method...- publication PDF
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An observational study of a coastal barrier jet induced by a landfalling typhoon
In this study, the structure and evolution of a coastal barrier jet (CBJ) along the east coast of Taiwan is documented using operational Doppler radars. The formation of the CBJ...- publication PDF
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Chemical weather and chemical climate
Progress in fundamental understanding of atmospheric chemistry in the past decades has enabled the development of advanced environmental predictive capability. Accurate chemical...- publication PDF
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Selecting representative days for more efficient dynamical climate...
This paper describes a new computationally efficient and statistically robust sampling method for generating dynamically downscaled climatologies. It is based on a Monte Carlo...- publication PDF
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Impacts of urban expansion and future green planting on summer precipitation...
In this study, an analysis of long-term rainfall data reveals that the rapid urban expansion in Beijing since 1981 is statistically correlated to summer rainfall reduction in...- publication PDF
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The role of sulfur dioxide in stratospheric aerosol formation evaluated by...
Stratospheric aerosols (SAs) are a variable component of the Earth's albedo that may be intentionally enhanced in the future to offset greenhouse gases (geoengineering). The...- publication PDF
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A tethered-balloon PTRMS sampling approach for surveying of landscape-scale...
Landscape-scale fluxes of biogenic gases were surveyed by deploying a 100 m Teflon tube attached to a tethered balloon as a sampling inlet for a fast-response proton-transfer-...- publication PDF
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A multi-model CMIP6-PMIP4 study of Arctic sea ice at 127 ka: Sea ice data...
The Last Interglacial period (LIG) is a period with increased summer insolation at high northern latitudes, which results in strong changes in the terrestrial and marine...- publication PDF
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Impact of changes in the Sun's conveyor-belt on recent solar cycles
Plasma flowing poleward at the solar surface and returning equatorward near the base of the convection zone, called the meridional circulation, constitutes the Sun's conveyor-...- publication PDF
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Bridging the gap: Capturing the Lyα counterpart of a type-II spicule and its...
We present results from an observing campaign in support of the VAULT2.0 sounding rocket launch on 2014 September 30. VAULT2.0 is a Lya (1216 A) spectroheliograph capable of...- 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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Mixed-precision for linear solvers in global geophysical flows
Semi-implicit (SI) time-stepping schemes for atmosphere and ocean models require elliptic solvers that work efficiently on modern supercomputers. This paper reports our study of...- publication PDF
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Thermospheric basis functions for improved dynamic calibration of...
State-of-the-art satellite drag models require upgrades to meet operational Precision Orbit Determination requirements for collision avoidance, reentry predictions and catalog...- publication PDF
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An Evaluation of the Rosemount Ice Detector for Aircraft Hazard Warning and...
This report presents an evaluation of the Rosemount 871 ice detector for use as an aircraft hazard instrument and for determining liquid undercooled water content. Ice detector...- publication PDF
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Seasonally resolved distributional trends of North American temperatures...
There is considerable interest in determining whether recent changes in the temperature distribution extend beyond simple shifts in the mean. The authors present a framework...- publication PDF
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A radar reflectivity operator with ice-phase hydrometeors for variational...
A reflectivity forward operator and its associated tangent linear and adjoint operators (together named Radar-Var) were developed for variational data assimilation (DA)....- publication PDF
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The role of radiation in accelerating tropical cyclogenesis in idealized simulations
Recent numerical modeling studies indicate the importance of radiation in the transformation from a tropical disturbance to a tropical depression, a process known as tropical...- publication PDF
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Does increased horizontal resolution Improve hurricane wind forecasts?
The representation of tropical cyclone track, intensity, and structure in a set of 69 parallel forecasts performed at each of two horizontal grid increments with the Advanced...- publication PDF
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Positioning infrastructure and technologies for low-carbon urbanization
The expected urbanization of the planet in the coming century coupled with aging infrastructure in developed regions, increasing complexity of man-made systems, and pressing...- publication PDF