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CARIB18: A stable geodetic reference frame for geological hazard monitoring...
We have developed a Stable Caribbean Reference Frame 2018 (CARIB18) using long-term continuous observations from 18 continuously operating Global Positioning System (GPS)...- publication PDF
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Impact of 837 GPS/MET bending angle profiles on assimilation and forecasts...
With a ray-tracing procedure and variational data assimilation techniques, it is now possible to make direct use of radio occultation bending angles, rather than their derived...- publication PDF
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Segregation of atmospheric oxidants in turbulent urban environments
In the atmospheric boundary layer that is affected by turbulent motions and inhomogeneous surface chemical emissions, short-lived reactive species may not be completely mixed...- publication PDF
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Tiered approach to resilience assessment
Regulatory agencies have long adopted a three-tier framework for risk assessment. We build on this structure to propose a tiered approach for resilience assessment that can be...- publication PDF
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Magnetic flux rope shredding by a hyperbolic flux tube: The detrimental...
We present the analysis of an unusual failed eruption captured in high cadence and in many wavelengths during the observing campaign in support of the Very high Angular...- publication PDF
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On the stratospheric chemistry of midlatitude wildfire smoke
Massive Australian wildfires lofted smoke directly into the stratosphere in the austral summer of 2019/20. The smoke led to increases in optical extinction throughout the...- publication PDF
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The influence of major sudden stratospheric warming and elevated stratopause...
We investigate the influence of major sudden stratospheric warming (SSW) and elevated stratopause (ES) events in the Northern Hemisphere winter on the transport of NOx produced...- publication PDF
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Assessment of observational evidence for direct convective hydration of the...
In situ and remote sensing observations of water vapor are analyzed to assess the evidence for direct convective hydration of the lower stratosphere. We have examined several...- publication PDF
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Climatological aspects of cyclogenesis near Adélie Land Antarctica
The Adelie Land coastal region of Antarctica is one of the most prominent cyclogenesis regions in the Southern Hemisphere, and is adjacent to the continent's most intense...- publication PDF
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PHIPS-HALO: The airborne Particle Habit Imaging and Polar Scattering probe –...
A major challenge for in situ observations in mixed-phase clouds remains the phase discrimination and sizing of cloud hydrometeors. In this work, we present a new method for...- publication PDF
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The emergence of shallow easterly jets within QBO westerlies
A configuration of an idealized general circulation model has been obtained in which a deep, stratospheric, equatorial, westerly jet is established that is spontaneously and...- publication PDF
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Thermal Convection: A Colloquium, Sponsored by the NCAR Advanced Study...
This document is part one of three which report the results of a six-week colloquium on problems of thermal convection held during the summer of 1966. The colloquium covered a...- publication PDF
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Energy spectra of stably stratified turbulence
We investigate homogeneous incompressible turbulence subjected to a range of degrees of stratification. Our basic method is pseudospectral direct numerical simulations at a...- publication PDF
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Pacific Ocean variability influences the time of emergence of a seasonally...
The Arctic Ocean is projected to become seasonally ice-free before midcentury unless greenhouse gas emissions are rapidly reduced, but exactly when this could occur depends...- publication PDF
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Examination of brown carbon absorption from wildfires in the western US...
Light absorbing organic carbon, or brown carbon (BrC), can be a significant contributor to the visible light absorption budget. However, the sources of BrC and the contributions...- publication PDF
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Airborne and ground-based observations of a weekend effect in ozone,...
Airborne and ground-based measurements during the CalNex (California Research at the Nexus of Air Quality and Climate Change) field study in May/June 2010 show a weekend effect...- publication PDF
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Evaluating tropospheric humidity from GPS radio occultation, radiosonde, and...
While water vapor is the most important tropospheric greenhouse gas, it is also highly variable in both space and time, and water vapor concentrations range over 3 orders of...- publication PDF
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Ambient factors controlling the wintertime precipitation distribution across...
This study analyzes the control of upstream conditions on the distribution of wintertime precipitation across mountain ranges in the interior western United States using 10...- publication PDF
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The effect of subauroral polarization streams on the mid-latitude...
The temporal and spatial variations in thermospheric neutral winds at an altitude of 400 km in response to subauroral polarization streams (SAPS) are investigated using global...- publication PDF
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How predictable is the timing of a summer ice-free Arctic?
Climate model simulations give a large range of over 100 years for predictions of when the Arctic could first become ice free in the summer, and many studies have attempted to...- publication PDF
