Diabatic cross-isentropic dispersion in the lower stratosphere
نویسندگان
چکیده
منابع مشابه
Diabatic Circulations in the Stratosphere
Three dimensional fields of radiative heating and cooling rates have been calculated from satellite observations of temperature, ozone and water vapour distributions in the stratosphere between November 1978 and May 1979. Error analysis shows that these fields are accurate to within <20% over the entire stratosphere. Zonal-mean cross-sections are broadly similar to other recent calculations. Ne...
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[1] The extratropical upper troposphere and lower stratosphere (Ex‐UTLS) is a transition region between the stratosphere and the troposphere. The Ex‐UTLS includes the tropopause, a strong static stability gradient and dynamic barrier to transport. The barrier is reflected in tracer profiles. This region exhibits complex dynamical, radiative, and chemical characteristics that place stringent spa...
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Ozone and nitrous oxide are measured at high spatial and temporal resolution by instruments flying on the ER2 NASA research aircraft. Comparing the airborne transects to reconstructions by ensemble of diffusive backward trajectories allows estimation of the average vertical Lagrangian turbulent diffusion experienced by the air parcels. The resulting estimates show large Lagrangian diffusion of ...
متن کاملPlanetary wave activity in the polar lower stratosphere
Temperature data from the COSMIC GPS-RO satellite constellation are used to study the distribution and variability of planetary wave activity in the low to midstratosphere (15–40 km) of the Arctic and Antarctic from September 2006 until March 2009. Stationary waves are separated from travelling waves and their amplitudes, periods and small-scale vertical distribution then examined. COSMIC obser...
متن کاملVariability of the Lagrangian turbulent diffusivity in the lower stratosphere
Variability of the Lagrangian turbulent diffusivity in the lower stratosphere B. Legras, I. Pisso, G. Berthet, and F. Lefèvre Laboratoire de Météorologie Dynamique, UMR8539, Paris, France Service d’Aéronomie, UMR7620, Paris, France Received: 28 October 2004 – Accepted: 9 November 2004 – Published: 15 December 2004 Correspondence to: B. Legras ([email protected]) © 2004 Author(s). This work is l...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 1997
ISSN: 0148-0227
DOI: 10.1029/97jd01968