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321
Emulating lateral gravity wave propagation in a global chemistry–climate model (EMAC v2.55.2) through horizontal flux redistribution
Published 2023-10-01“…<p>The columnar approach of gravity wave (GW) parameterisations in weather and climate models has been identified as a potential reason for dynamical biases in middle-atmospheric dynamics. For example, GW momentum flux (GWMF) discrepancies between models and observations at 60<span class="inline-formula"><sup>∘</sup></span> S arising through the lack of horizontal orographic GW propagation are suspected to cause deficiencies in representing the Antarctic polar vortex. …”
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322
Reconstructing the XUV Spectra of Active Sun-like Stars Using Solar Scaling Relations with Magnetic Flux
Published 2023-01-01“…These exoplanets are subject to fluxes of ionizing radiation in the form of X-ray and extreme-ultraviolet (EUV) radiation that may cause changes in their atmospheric dynamics and chemistry. While X-ray fluxes can be observed directly, EUV fluxes cannot be observed because of severe interstellar medium absorption. …”
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323
How do intermittency and simultaneous processes obfuscate the Arctic influence on midlatitude winter extreme weather events?
Published 2021-01-01“…But internal shifts in atmospheric dynamics—the variability of the location, strength, and character of the jet stream, blocking, and stratospheric polar vortex (SPV)—obscure the direct causes and effects. …”
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324
Mechanisms controlling giant sea salt aerosol size distributions along a tropical orographic coastline
Published 2023-11-01“…These size distributions were then analyzed in relation to environmental variables influencing SSA production and atmospheric dynamics. It was found that significant wave height exhibited the strongest correlation with changes in SSA size distributions. …”
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325
The 2018 west-central European drought projected in a warmer climate: how much drier can it get?
Published 2023-05-01“…<p>Projections of changes in extreme droughts under future climate conditions are associated with large uncertainties, owing to the complex genesis of droughts and large model uncertainty in the atmospheric dynamics. In this study we investigate the impact of global warming on soil moisture drought severity in west-central Europe by employing pseudo global warming (PGW) experiments, which project the 1980–2020 period in a globally warmer world. …”
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326
Precipitation 17O-excess altered during tropical convection: evidence from monsoon cold surges in Singapore
Published 2024“…Therefore, it is crucial to consider how tropical convection alters 17O-excess when utilizing this tracer to interpret atmospheric dynamics and hydrological processes.…”
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327
Channel characterization and modeling for GEO satellite-to-land terminals at ku-band with tropical weather awareness
Published 2015“…Moreover, the proposed extended LMS channel (ELMSC) model during non-rainy and -cloudy environments, and the comprehensive satellite to tropical LMS channel (STROC) model that incorporates atmospheric dynamics, were proven to have lower Root Mean Square Error (RMSE), and higher reliability than the conventional models. …”
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328
An overview of the Western United States Dynamically Downscaled Dataset (WUS-D3)
Published 2024-03-01“…The future downscaled climate change signals are shaped in physically credible ways by the regional model's more realistic coastlines and topography. (1) The mean warming signals are heavily influenced by more realistic snowpack. (2) Mean precipitation changes are often consistent with wetting on the windward side of mountain complexes, as warmer, moister air masses are uplifted orographically during precipitation events. (3) There are large fractional precipitation increases on the lee side of mountain complexes, leading to potentially significant changes in water resources and ecology in these arid landscapes. (4) Increases in precipitation extremes are generally larger than in the GCMs, driven by locally intensified atmospheric updrafts tied to sharper, more realistic gradients in topography. (5) Changes in temperature extremes are different from what is expected by a shift in mean temperature and are shaped by local atmospheric dynamics and land surface feedbacks. Because of its high resolution, comprehensiveness, and representation of relevant physical processes, this dataset presents a unique opportunity to evaluate societally relevant future changes in western US climate.…”
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329
Application of a Machine Learning Algorithm in Generating an Evapotranspiration Data Product From Coupled Thermal Infrared and Microwave Satellite Observations
Published 2022-05-01“…Land surface evapotranspiration (ET) is one of the main energy sources for atmospheric dynamics and a critical component of the local, regional, and global water cycles. …”
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330
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Meteor radar vertical wind observation biases and mathematical debiasing strategies including the 3DVAR+DIV algorithm
Published 2022-10-01“…<p>Meteor radars have become widely used instruments to study atmospheric dynamics, particularly in the 70 to 110 <span class="inline-formula">km</span> altitude region. …”
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332
Chemical characterization of atmospheric aerosols at a high-altitude mountain site: a study of source apportionment
Published 2024-03-01“…Studying aerosols in high mountain areas provides insights into long-range transport of pollutants, atmospheric dynamics, and climate change impacts. These regions can serve as valuable observatories for studying atmospheric processes.…”
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333
A Combined Ground-based and JWST Atmospheric Retrieval Analysis: Both IGRINS and NIRSpec Agree that the Atmosphere of WASP-77A b Is Metal-poor
Published 2024-01-01“…We also search for signatures for atmospheric dynamics in the IGRINS data and find that propagated ephemeris error can manifest as either an orbital eccentricity or a strong equatorial jet. …”
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334
The pathway of impacts of aerosol direct effects on secondary inorganic aerosol formation
Published 2022-04-01“…In this study, the online coupled meteorological and chemistry model (WRF–CMAQ; Weather Research and Forecasting–Community Multiscale Air Quality) with integrated process analysis was applied to explore how ADEs affect secondary aerosol formation through changes in atmospheric dynamics and photolysis processes. The meteorological condition and air quality in the Jing-Jin-Ji area (denoted JJJ, including Beijing, Tianjin, and Hebei Province in China) in January and July 2013 were simulated to represent winter and summer conditions, respectively. …”
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335
Decadal Quasi-2-Day Wave Observations in the Equatorial Mesopause Region by a Meteor Radar over Kototabang (0.2°S, 100.3°E) and TIMED/TIDI and Comparison with Quasi-2-Day Wave Obse...
Published 2023-02-01“…Atmospheric oscillations have a crucial impact on atmospheric dynamics, which contributes to more accurate space weather forecasting, thus providing a more secure space environment for human space exploration activities such as remote sensing and satellite navigation. …”
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336
Global total ozone recovery trends attributed to ozone-depleting substance (ODS) changes derived from five merged ozone datasets
Published 2022-05-01“…A standard MLR (limited to solar, Quasi-Biennial Oscillation (QBO), volcanic, and El Niño–Southern Oscillation (ENSO)) leads to zero trends, showing that the small positive ODS-related trends have been balanced by negative trend contributions from atmospheric dynamics, resulting in nearly constant total ozone levels since 2000.…”
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337
Enhanced net CO<sub>2</sub> exchange of a semideciduous forest in the southern Amazon due to diffuse radiation from biomass burning
Published 2024-02-01“…<p>Carbon cycling in the Amazon fundamentally depends on the functioning of ecosystems and atmospheric dynamics, which are highly intricate. Few studies have hitherto investigated or measured the radiative effects of aerosols on the Amazon and Cerrado. …”
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338
The French ST-radar network during MAP: Observational and scientific aspects
Published 2001-12-01“…In addition, cross-comparisons with meso-scale model simulations are made allowing some meso-scale aspects of the atmospheric dynamics to be investigated. Eine internationale Kampagne des Mesoscale Alpine Program (MAP) fand vom 7. …”
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339
Potential Impacts of Land Cover Change on the Interannual Variability of Rainfall and Surface Temperature over West Africa
Published 2018-09-01“…Finally, we investigated the impacts of the afforestation options on some features of the rainfall events, and on the atmospheric dynamics during wet and dry years. All afforestation options tend to increase the frequency of the number of rainy days in regions located south of 18° N during both periods. …”
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340