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Secular changes in the thermosphere and ionosphere between two quiet Sun periods
The solar minimum period between solar cycles 23 and 24 was the longest since the beginning of space-based measurements, and many manifestations of solar activity were unusually...- publication PDF
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Drop size distribution broadening mechanisms in a bin microphysics Eulerian model
In this study, processes that broaden drop size distributions (DSDs) in Eulerian models with two-moment bin microphysics are analyzed. Numerous tests are performed to isolate...- publication PDF
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Refactoring Data-Driven Model Selection Code for Improvements in...
Buchholz et al. used observations of total column carbon monoxide (CO) from the Measurements Of Pollution In The Troposphere (MOPITT) satellite instrument to build a record of...- publication PDF
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Foehn winds in the McMurdo Dry Valleys, Antarctica: The origin of extreme...
Foehn winds resulting from topographic modification of airflow in the lee of mountain barriers are frequently experienced in the McMurdo Dry Valleys (MDVs) of Antarctica. Strong...- publication PDF
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Evidence of spray-mediated air-sea enthalpy flux within tropical cyclones
It has long been conjectured that spray ejected from the high-wind ocean surface enhances air/sea enthalpy fluxes, but a lack of observational data, particularly at wind speeds...- publication PDF
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Analysis and validation of GPS/MET data in the neutral atmosphere
The Global Positioning System/Meteorology (GPS/MET) Program was established in 1993 by the University Corporation for Atmospheric Research (UCAR) to demonstrate active limb...- publication PDF
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The effect of solar radio bursts on the GNSS radio occultation signals
Solar radio burst (SRB) is the radio wave emission after a solar flare, covering a broad frequency range, originated from the Sun's atmosphere. During the SRB occurrence, some...- publication PDF
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Postdeployment calibration of a tropical UHF profiling radar via surface-...
Wind profiling radars are usually not calibrated with respect to reflectivity because such calibrations are both unnecessary for good wind measurements and costly. However,...- publication PDF
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C-band dual-doppler retrievals in complex terrain: Improving the knowledge...
Convective activity in Catalonia (northeastern Spain) mainly occurs during summer and autumn, with severe weather occurring 33 days per year on average. In some cases, the...- publication PDF
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Partitioning uncertainty in projections of Arctic sea ice
Improved knowledge of the contributing sources of uncertainty in projections of Arctic sea ice over the 21st century is essential for evaluating impacts of a changing Arctic...- publication PDF
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The THORPEX Interactive Grand Global Ensemble
Ensemble forecasting is increasingly accepted as a powerful tool to improve early warnings for high-impact weather. Recently, ensembles combining forecasts from different...- publication PDF
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Technical note: The CAMS greenhouse gas reanalysis from 2003 to 2020
The Copernicus Atmosphere Monitoring Service (CAMS) has recently produced a greenhouse gas reanalysis (version egg4) that covers almost 2 decades from 2003 to 2020 and which...- publication PDF
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Comparing growth rates of simulated moist and dry convective thermals
The spreading rates of convective thermals are linked to their net entrainment, and previous literature has suggested differences in spreading rates between moist and dry...- publication PDF
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On the Coupling Strength Between the Land Surface and the Atmosphere
This study addresses the land-atmospheric coupling strength by using long-term AmeriFlux data from a wide range of land covers and climate regimes to reconstitute the surface...- publication PDF
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Simulation and scaling of the turbulent vertical heat transport and...
Microstructure observations in the Pacific cold tongue reveal that turbulence often penetrates into the thermocline, producing hundreds of watts per square meter of downward...- publication PDF
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The HAMMONIA Chemistry Climate Model: Sensitivity of the mesopause region to...
This paper introduces the three-dimensional Hamburg Model of the Neutral and Ionized Atmosphere (HAMMONIA), which treats atmospheric dynamics, radiation, and chemistry...- publication PDF
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Impact of the lower thermospheric winter-to-summer residual circulation on...
Gravity wave forcing near the mesopause drives a summer-to-winter residual circulation in the mesosphere and a reversed, lower thermospheric winter-to-summer residual...- publication PDF
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Tradeoffs for routing flights in view of multiple weather hazards
Adverse weather impacts the safety and efficiency of aviation. Convective storms, turbulence, and icing are aviation weather hazards that can lead to unpleasant rides and, in...- publication PDF
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Combinations of natural and anthropogenic forcings and 20th century climate
Ensemble simulations are run with a global coupled climate model employing five forcing agents that influence the time evolution of globally averaged surface air temperature...- publication PDF
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Improvement of the prediction of surface ozone concentration over...
The global chemistry-climate model (CAM4-Chem) overestimates the surface ozone concentration over the conterminous U.S. (CONUS). Reasons for this positive bias include emission,...- publication PDF