Ernst Behler's "The Contemporary and the Posthumous" : Roundtable Discussion

This roundtable discussion of "The Contemporary and the Posthumous", Ernst Behler's contribution to the first International Conference for Humanistic Discourses, was held in April, 1994. The papers of this first meeting of the ICHD have been published in volume 4 of Surfaces (1994).Ces discussions autour du texte de Ernst Behler, « The Contemporary and the Posthumous », ont eu lieu en avril 1994, dans le cadre du premier Congrès sur le Discours Humaniste. Les communications de cette première réunion du Congrès ont été publiées dans le volume 4 de Surfaces (1994)

The SHIVA Western Pacific Campaign in Fall 2011

This paper briefly summarizes the activities and observations made during the SHIVA (Stratospheric Ozone: Halogen Impacts in a Varying Atmosphere) Western Pacific campaign in fall 2011, here referred to as the SHIVA South China Sea (SCS) campaign. The campaign addressed investigation of emissions of so-called halogenated very short-lived substances (VSLS) from the South China Sea (SCS), their atmospheric transport and transformation, their contribution to the budget of ozone destroying halogens in the stratosphere. Key findings of the SHIVA campaign are that, (a) the SCS is indeed a prominent emission region for halogenated VSLS, mostly due to the emissions of micro- and macro-algae, (b) in the boundary layer of the marine atmosphere typical VSLS mixing ratios were 3.6 - 13.3 ppt and in the upper troposphere 4.1±0.6 ppt, which may well explained a total source gas (SG) and product gas (PG) injection of [VSLS] = 4-5 ppt into the global stratosphere