Advective-diffusive mass flux and implications for stratosphere-troposphere exchange
نویسندگان
چکیده
منابع مشابه
Advective-diffusive mass flux and implications for stratosphere- troposphere exchange
[1] We show that the flux of mass crossing in one direction (the ‘‘gross’’ flux) through any specified surface S that divides anadvective-diffusive flow in a closed domain is infinite. That is, the flux, F (t), through S of the fluid mass that spent at least time t on one side of S diverges like t 1/2 as t ! 0, in the continuum limit. The gross flux is completely dominated by fluid elements res...
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In the past, studies of stratosphere-troposphere exchange of mass and chemical species have mainly emphasized the synopticand small-scale mechanisms of exchange. This review, however, includes also the global-scale aspects of exchange, such as the transport across an isentropic surface (potential temperature about 380 K) that in the tropics lies just above the tropopause, near the 100-hPa press...
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[1] We perform the first analysis of stratosphere-troposphere exchange in terms of distributions that partition the one-way flux across the thermal tropopause according to stratospheric residence time t and the regions where air enters and exits the stratosphere. These distributions robustly quantify one-way flux without being rendered ill defined by the short-t eddy-diffusive singularity. Diag...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2003
ISSN: 0094-8276
DOI: 10.1029/2002gl016419