Results 11 to 20 of about 176,247 (337)
Instabilities in a polytropic atmosphere [PDF]
AbstractThe density in the outer layers of stars varies by several orders of magnitude and it is desirable to include the full effects of compressibility in any study of instabilities arising in stellar convection zones. In an unstable compressible fluid-layer that is thermally conducting both the oscillatory and non-oscillatory motions can ...
H.M. Antia, S.M. Chitre
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Severe weather events in Moldavia region, on June 23, 2019
The forecast of torrential rainfall is quite laborious and sometimes difficult. The difficulty lies in estimating the quantitative threshold and the spatial distribution of rainfall. Such a study is necessary because it has been found that in the last 30-
Diana-Corina BOSTAN +2 more
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STATISTICAL ANALYSIS OF CONVECTIVE STORMS BASED ON ORADEA AND BOBOHALMA WSR-98D RADAR IN JULY 2004-2015 [PDF]
Radar data usage for the statistics of convective storms is very useful due to high temporal and spatial distribution. On the other hand, July month is characterized by intense convective processes as a consequence of pronounced radiative heating from ...
N. MAIER, T. TUDOSE
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This study focuses on the role of land surface moisture in generating asymmetrical precipitation surrounding a nearly stationary Hurricane Florence (2018) during landfall.
Lindsey Rosenthal, Stephanie E. Zick
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Improving Altimeter Wind Speed Retrievals Using Ocean Wave Parameters
Spaceborne altimeters are an important data source for obtaining global sea surface wind speeds (U10). Although many altimeter U10 algorithms have been proposed and they perform well, there is still room for improvement.
Haoyu Jiang, Hao Zheng, Lin Mu
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The Fire Weather Index (FWI) is used to assess meteorological fire danger worldwide. It has been argued that it lacks an atmospheric instability term. A new enhanced FWI (FWIe) was recently developed incorporating atmospheric instability in the form of ...
Luana C. Santos +7 more
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Modelling the Apparent von Kármán Parameter in Thermally and Sedimentologically Stratified Air Flows
Through a field experiment on a sandy beach at Pingtan, China, we propose the first model to characterize the variability of apparent von Kármán parameter κa in the thermally and sedimentologically stratified air flows.
Bailiang Li +3 more
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The Atmosphere Has Become Increasingly Unstable During 1979–2020 Over the Northern Hemisphere
Atmospheric instability affects the formation of convective storms, but how it has changed during recent decades is unknown. Here we analyze the occurrence frequency of stable and unstable atmospheric conditions over land using homogenized radiosonde ...
Jiao Chen, Aiguo Dai
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THE ROLE OF AIR ADVECTION AND ATMOSPHERIC STABILITY INDICES FOR IDENTIFING HEAVY RAIN STORMS IN NORTH-WESTERN ROMANIA [PDF]
Air advection and convection at different levels in the atmosphere affect its vertical stability. The degree of stability / instability can be determined by using vertical wind profile (hodograph) and stability indices. Analysis of these two elements was
TUDOSE T., MOLDOVAN F.
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Large-scale instabilities in a non-rotating turbulent convection [PDF]
Formation of large-scale coherent structures in a turbulent convection via excitation of large-scale instability is studied. The redistribution of the turbulent heat flux due to non-uniform large-scale motions plays a crucial role in the formation of the
Chandrasekhar S. +11 more
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