Les diplômés – no 341, déc. 1982

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Ms.Ff.F.Stoltze 3. 341 - Brief von Friedrich Stoltze an Vereinigte Stadttheater

Hilfe für eine bedürftige Familie, Bitte um Ausleihung von Kostümen für eine Benefizvorstellung

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 584 - Ankündigung des Besuchs in Mannheim

u.a.: Entgegennahme der Wertpapiere;

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 341 - Bitte an Professor Hugo von Meltzl um die Veröffentlichung eines Manuskriptes anlässlich des anstehenden Schopenhauer-Jubiläums

u.a.: Ferdinand Laban;

Na 1 Nachlass Max Horkheimer, 542 - Korrespondenzen mit Leo Löwenthal (p. VI 16, 147 - 341)

109 Briefe zwischen Leo Löwenthal und Max Horkheimer; 1 Brief von den Office of Strategie Services (Washington D.C.) an Leo Löwenthal, 23.10.1943; 2 Briefe von Leo Löwenthal an Frederick Pollock, August 1943; 3 Briefe zwischen Daniel Levison und Leo Löwenthal, August 1943;

Ms.Ff.F.Stoltze 3. 584 - Brief von Friedrich Stoltze an Friedrich Stoltze und Marie Stoltze

Erkrankung

Na 1 Nachlass Max Horkheimer, 584 - Korrespondenzen mit Friedrich (Frederick) Pollock (p. VI 35, 315-437)

1 Brief von Frederick Pollock an Hans J. Lichtenberger, 06.02.1947; 1 Briefe von Max Horkheimer an das Institute´s Advisory Board 11.01.1947; 1 Brief von Margot von Mendelssohn an Redman Van and Storage Co. (Santa Monica), 07.01.1947; 1 Brief von Gertrud Löwenthal an Redman Van and Storage Co. (Santa Monica), 03.01.1947;

Solar radiation over and under sea ice and photographic quantification of Ice algal aggregates during the POLARSTERN cruise ARK-XXVII/3 (IceArc) in summer 2012

The ice cover of the Arctic Ocean has been changing dramatically in the last decades and the consequences for the sea-ice associated ecosystem remain difficult to assess. Algal aggregates underneath sea ice have been described sporadically but the frequency and distribution of their occurrence is not well quantified. We used upward looking images obtained by a remotely operated vehicle (ROV) to derive estimates of ice algal aggregate biomass and to investigate their spatial distribution. During the IceArc expedition (ARK-XXVII/3) of RV Polarstern in late summer 2012, different types of algal aggregates were observed floating underneath various ice types in the Central Arctic basins. Our results show that the floe scale distribution of algal aggregates in late summer is very patchy and determined by the topography of the ice underside, with aggregates collecting in dome shaped structures and at the edges of pressure ridges. The buoyancy of the aggregates was also evident from analysis of the aggregate size distribution. Different approaches used to estimate aggregate biomass yield a wide range of results. This highlights that special care must be taken when upscaling observations and comparing results from surveys conducted using different methods or on different spatial scales.