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The Tropopause and the Thermal Stratification in the Extratropics of a Dry Atmosphere
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ABSTRACT
A dynamical constraint on the extratropical tropopause height and thermal stratification is derived by considerations of entropy fluxes, or isentropic mass fluxes, and their different magnitudes in the troposphere and stratosphere. The dynamical constraint is based on a relation between isentropic mass fluxes and eddy fluxes of potential voracity and surface potential temperature and on diffusive eddy flux closures. It takes baroclinic eddy fluxes as central for determining th...
Related newspaper, magazine, and journal articles from HighBeam Research
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LLNL Study Links Tropopause Height to Warming.(Lawrence Livermore National Laboratory)
Ozone Depletion Network Online Today
; Researchers at Lawrence Livermore National Laboratory (LLNL) recently released a new study which found that increases in the height of the tropopause -- the transition zone between the troposphere and the stratosphere -- during the past 20 years are directly linked to ozone depletion and increased
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Long-term sodar observations in Moscow and a new approach to potential mixing determination by radiosonde data
Journal of Atmospheric and Oceanic Technology
; ABSTRACT The experimental data about thermal stratification of a low layer of atmosphere, received by the sodar sounding and direct measurements simultaneously, are summarized and discussed. The conclusion was made that sodar records of small-scale turbulent structures can be efficiently explained
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Researchers Link Human Activities to Tropopause Height Changes.(Brief Article)
Ozone Depletion Network Online Today
; The Lawrence Livermore National Laboratory (LLNL) recently reported that a team of LLNL scientists, working with researchers from the Lawrence Berkely National Laboratory, the National Center for Atmospheric Research, the Institut fur Physik der Atmosphare and the University of Birmingham, have
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Effects of nutrients and planktivorous fish on the phytoplankton of shallow and deep aquatic systems.
Ecology
; INTRODUCTION Nutrient levels and circulation patterns have long been identified as factors influencing phytoplankton community structure in aquatic systems (e.g., Pearsall 1932, Reynolds 1984). In lakes, nutrient levels influence total phytoplankton biomass (e.g., Sakamoto 1966, Dillon and Riglet
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Inertial and Buoyancy Driven Water Flows under Gas Bubbling and Thermal Stratification Conditions in a Tundish Model
Metallurgical and Materials Transactions
; Steel flow dominated by inertial and buoyancy flows under gas bubbling and thermal stratification conditions, in a one-strand tundish, was studied using a 2/5 scale water model. The use of a turbulence inhibitor yields plug flow volume fractions well above 40 pct for a casting rate of 3.12 tons/min
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