Inversion temperature
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Joule-Thomson expansion of charged Gauss-Bonnet black holes in AdS space Open
Joule-Thomson expansion process is studied for charged Gauss-Bonnet black holes in AdS space. Firstly, in five-dimensional space-time, the isenthalpic curve in $T-P$ graph is obtained and the cooling-heating region is determined. Secondly,…
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Transitions in the wintertime near‐surface temperature inversion at Dome C, Antarctica Open
In this work we study the dynamics of the surface‐based temperature inversion over the Antarctic Plateau during the polar winter. Using 6 years of observations from the French–Italian Antarctic station Concordia at Dome C, we investigate s…
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The Atmospheric Boundary Layer during Wintertime Persistent Inversions in the Grenoble Valleys Open
This study addresses the atmospheric boundary layer dynamics in the Grenoble valleys during persistent inversions, for 5 months during the 2006-2007 winter. During a persistent inversion, the boundary layer contains a layer with a positive…
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Methodology for determining multilayered temperature inversions Open
Temperature sounding of the atmospheric boundary layer (ABL) and lower troposphere exhibits multilayered temperature inversions specially in high latitudes during extreme winters. These temperature inversion layers are originated based on …
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Throttling process of the Kerr–Newman–anti-de Sitter black holes in the extended phase space Open
The throttling process of the Kerr-Newman-anti-de Sitter (KN-AdS) black holes\nis systematically studied in the extended phase space. In this framework, the\ncosmological constant is interpreted as a varying thermodynamic pressure, and\nth…
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Experimental study of temperature inversions above urban area using unmanned aerial vehicle Open
Vertical temperature profiles represent a very important factor for various analytical and numerical studies, such as weather forecasts, air pollution models and CFD simulations. These temperature profiles are especially important during t…
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MesSBAR—Multicopter and Instrumentation for Air Quality Research Open
Air quality measurements usually consist of ground-based instrumentation at fixed locations. However, vertical profiles of pollutants are of interest for understanding processes, distribution, dilution and concentration. Therefore, a multi…
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The PEPSI Exoplanet Transit Survey (PETS). II. A Deep Search for Thermal Inversion Agents in KELT-20 b/MASCARA-2 b with Emission and Transmission Spectroscopy* Open
Recent observations have shown that the atmospheres of ultrahot Jupiters (UHJs) commonly possess temperature inversions, where the temperature increases with increasing altitude. Nonetheless, which opacity sources are responsible for the p…
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Ground surface temperature reconstruction for the last 500 years obtained from permafrost temperatures observed in the SHARE STELVIO Borehole, Italian Alps Open
Here we present the results of the inversion of a multi-annual temperature profile (2013, 2014, 2015) of the deepest borehole (235 m) in the mountain permafrost of the world located close to Stelvio Pass in the Central Italian Alps. The SH…
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Earliest phases of star formation (EPoS) Open
Constraining the temperature and density structure of dense molecular cloud cores is fundamental for understanding the initial conditions of star formation. We use Herschel observations of the thermal FIR dust emission from nearby isolated…
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Temperature inversion of the thermal polarization of water Open
Temperature gradients polarize water, a nonequilibrium effect that may result in significant electrostatic fields for strong thermal gradients. Using nonequilibrium molecular dynamics simulations, we show that the thermal polarization feat…
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Magnetically Charged AdS Black Holes and Joule–Thomson Expansion Open
The process of the Joule-Thomson adiabatic expansion within RNED-AdS\nspacetime is investigated. The isenthalpic P-T diagrams and the inversion\ntemperature were depicted. The inversion temperature depends on the magnetic\ncharge and RNED …
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NED-AdS black holes, extended phase space thermodynamics and Joule–Thomson expansion Open
We study and discuss the critical behavior of charged by nonlinear\nelectrodynamics (NED) AdS black holes in an extended phase space. The negative\ncosmological constant is treated as a thermodynamic pressure and the black hole\nmass is co…
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$P-V$ criticality and Joule-Thomson Expansion of Hayward-AdS black holes in 4D Einstein-Gauss-Bonnet gravity Open
In this paper, the $P-V$ criticality and Joule-Thomson Expansion of Hayward-AdS black holes in 4D Einstein-Gauss-Bonnet gravity are studied in the extended phase space. We find the black hole always exhibits a phase transition similar to t…
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Cs vapor microcells with Ne-He buffer gas mixture for high operation-temperature miniature atomic clocks Open
We report on the characterization of Cs vapor microfabricated cells filled with a Ne-He buffer gas mixture using coherent population trapping (CPT) spectroscopy. The temperature dependence of the Cs clock frequency is found to be canceled …
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Site-testing at Muztagh-ata site III: temperature inversion in surface-layer atmosphere Open
In this article, we present detailed seasonal, monthly and daily statistics of temperature difference in the surface layer at the Muztagh-ata site based on the temperature measurements at two heights of 2m and 6m. We find that temperature …
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Joule-Thomson expansion of charged dilatonic black holes* Open
Based on the Einstein-Maxwell theory, the Joule-Thomson (J-T) expansion of charged dilatonic black holes (the solutions are neither flat nor AdS) in -dimensional spacetime is studied herein. To this end, we analyze the effects of the dimen…
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Temperature Inversion and Particulate Matter Concentration in the Low Troposphere of Cergy-Pontoise (Parisian Region) Open
This study aims to elucidate the influence of meteorological conditions on particle levels in Cergy-Pontoise. It explores the temporal variability of PM10 pollution days by associating them with the vertical temperature profile derived fro…
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Magnetic black holes in AdS space with nonlinear electrodynamics, extended phase space thermodynamics and Joule–Thomson expansion Open
This paper studies thermodynamics of magnetically charged black holes in Anti-de Sitter space in an extended phase space. The cosmological constant is considered as a pressure and the black hole mass is treated as the chemical enthalpy. Th…
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The vertical atmospheric structure of the partially glacierised Mittivakkat valley, southeast Greenland Open
Air temperature inversions, a situation in which atmospheric temperature increases with height, are key components of the Arctic planetary boundary layer. The present study investigates the spatial and temporal variations of temperature in…
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Earliest phases of star formation (EPoS): Dust temperature distributions in isolated starless cores Open
Constraining the temperature and density structure of dense molecular cloud cores is fundamental for understanding the initial conditions of star formation. We use Herschel observations of the thermal FIR dust emission from nearby isolated…
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Effects of Lovelock gravity on the Joule-Thomson expansion Open
Effects of Lovelock gravity on the Joule-Thomson expansion are probed from various perspectives. The well-known Joule-Thomson coefficient is derived with both the explicit expression and intuitive image presented. Moreover, the inversion c…
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The importance of topography in the formation of cold-air pooling in urban spaces. The example of the city of Coimbra (Portugal) Open
The aim of this paper is to analyze the existence of cold-air pools on anticyclonic nights in a narrow urban valley where three hospital units and a road with intense traffic are located and where the slopes associated with proximity to a …
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Joule-Thomson expansion of $AdS$ black holes in\n Einstein-power-Yang-Mills gravity Open
In this paper we study Joule-Thomson $(JT)$ expansion of non-linearly charged\n$AdS$ black holes in Einstein-power-Yang-Mills (EPYM) gravity in $D$\ndimensions. Within the framework of extended phase space thermodynamics we\nidentify the c…
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Layer-Averaged Water Temperature Sensing in a Lake by Acoustic Tomography with a Focus on the Inversion Stratification Mechanism Open
Continuous sensing of water parameters is of great importance to fluid dynamic progress study in oceans, coastal areas and inland waters. The acoustic tomography technique can perform water temperature field measurements horizontally and v…
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Thermal geometries and the Joule–Thomson expansion of modified charged and slowly rotating black holes Open
Thermodynamics of charged and slowly rotating black holes in 4D Gauss–Bonnet gravity has attracted a great deal of attention due to its intrinsic complications and rich phase structures. In this paper, we revisit the thermodynamics of char…
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A 25‐year climatology of low‐tropospheric temperature and humidity inversions for contrasting synoptic regimes at Neumayer Station, Antarctica Open
A 25‐year set of daily radiosonde data was used to investigate temperature and humidity inversions at Neumayer Station, coastal Dronning Maud Land, Antarctica. For the first time, inversions were studied differentiating between different s…
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Joule-Thomson expansion of a specific black hole in different dimensions Open
In this paper, we have studied the Joule-Thomson expansion of a specific black hole in f(R) gravity coupled with Yang-Mills field. Firstly, 4-dimensional equation of state and the Joule-Thomson coefficient were derived from thermodynamic q…
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The Influence of Temperature Inversion on the Vertical Distribution of Aerosols Open
Temperature inversion plays an important role in the accumulation and diffusion of aerosols. In this study, the relationship between temperature inversion and the vertical distribution of aerosols is investigated based on Raman lidar obser…
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The general class of accelerating, rotating and charged Plebanski-Demianski black holes as heat engine Open
We first review the general class of accelerating, rotating and charged Plebanski-Demianski (PD) black holes in the presence of cosmological constant, which includes the Kerr-Newman rotating black hole and the Taub-NUT spacetime. We assume…