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Vertical motions in orographic cloud systems over the Payette River Basin....
This paper examines the controls on supercooled liquid water content (SLWC) and drop number concenExperiment (SNOWIE) campaign. During SNOWIE, 27.4% of 1-Hz in situ cloud...- publication PDF
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The Mean Circulation of the Tropical and Subtropical Atmosphere-July
The purpose of this atlas is to provide a long-term data set to describe the mean structure of the tropical atmosphere straddling the equator for the period of the northern...- publication PDF
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Composition changes after the "Halloween" solar proton event: The High...
We have compared composition changes of NO, NO₂, H₂O₂, O₃, N₂O, HNO₃, N₂O₅, HNO₄, ClO, HOCl, and ClONO₂ as observed by the Michelson Interferometer for Passive Atmospheric...- publication PDF
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Assessing the demographics of the 2021 and 2022 CEDAR workshop
The Coupling, Energetics and Dynamics of Atmospheric Regions (CEDAR) community is made of engineers, scientists, physicists, and students with a mission to understand the...- publication PDF
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Identification of the tropical tropopause transition layer using the...
We present a method of identifying the tropical tropopause transition layer (TTL) using chemical tracer-tracer relationships. Coincident ozone (O₃) and water vapor (H₂O)...- publication PDF
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An intercomparative study of the effects of aircraft emissions on surface air quality
This study intercompares, among five global models, the potential impacts of all commercial aircraft emissions worldwide on surface ozone and particulate matter (PM2.5). The...- publication PDF
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On the role of atmospheric simulations horizontal grid spacing for flood modeling
Our study focuses on the hydrologic implications of resolving and modeling atmospheric processes at different spatial scales. Here we use heavy precipitation events from an...- publication PDF
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A numerical investigation of boundary layer quasi-equilibrium
Despite the large energy input from surface evaporation, the moist static energy (MSE) of the tropical boundary layer remains relatively constant on large spatial and temporal...- publication PDF
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Tropical temperature variability in the UTLS: New insights from GPS radio...
Global positioning system (GPS) radio occultation (RO) observations, first made of Earth's atmosphere in 1995, have contributed in new ways to the understanding of the thermal...- publication PDF
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Absence of high frequency echoes from ionosondes during the 23–25 April 2023...
We report an unusual event on absence of high frequency (HF) echoes in ionosonde observations from the ionospheric F2 region during the geomagnetic storm of 23-25 April 2023....- publication PDF
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U.S. Weather Research Program, Hurricane Landfall Workshop Report
This report contains the results of workshop participants who prioritized research and observational opportunities to achieve pre-landfall track forecast gains of this track-...- publication PDF
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The Wavy Ekman Layer: Langmuir circulations, breaking waves, and Reynolds stress
Large-eddy simulations are made for the canonical Ekman layer problem of a steady wind above a uniformly rotating, constant-density ocean. The focus is on the influence of...- publication PDF
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The Penn State/NCAR Mesoscale Model (MM5) source code documentation
This technical note describes the Fortran code (version 1) of the PSU/NCAR mesoscale model (MM5). It is intended to provide a detailed documentation of the model code for users...- publication PDF
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A formalism for calibrating the instrumental polarization of radio...
Calibration of instrumental polarization is critical for measuring polarized radio emissions from astrophysical sources to extract the magnetic field information in...- publication PDF
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Enhancing understanding of the hydrological cycle via pairing of...
The hydrologic cycle couples the Earth's energy and carbon budgets through evaporation, moisture transport, and precipitation. Despite a wealth of observations and models,...- publication PDF
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Explaining solar flare-induced ionospheric ion upflow at Millstone Hill (42.6°n)
Previous studies have shown that solar flares can significantly affect Earth's ionosphere and induce ion upflow with a magnitude of similar to 110 m/s in the topside ionosphere...- publication PDF
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Interannual variability of tropospheric moisture and temperature and...
Interannual variability of tropospheric moisture and temperature are key aspects of Earth's climate. In this study, monthly mean specific humidity (q) and temperature (T)...- publication PDF
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Long-term geospace climate monitoring
Climate change is characterized by global surface warming associated with the increase of greenhouse gas population since the start of the industrial era. Growing evidence shows...- publication PDF
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A decade of declines in toothed whale densities following the Deepwater...
Shortly after the Deepwater Horizon oil spill began in April 2010, a widely spaced passive acoustic monitoring array was deployed in the northeastern Gulf of Mexico to document...- publication PDF
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Observations of glyoxal and formaldehyde as metrics for the anthropogenic...
We present simultaneous fast, in-situ measurements of formaldehyde and glyoxal from two rural campaigns, BEARPEX 2009 and BEACHON-ROCS, both located in Pinus Ponderosa forests...- publication PDF