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27./28. Jahresbericht des Deutschen Hydrographisdien Instituts 1972/73 
Commission (IOC of UNESCO) that was held from 3 to 8 July 1972 in 
Hamburg at the invitation of the Federal Republic of Germany (cf. paragraph 
A. III.). The DHI that acts as Secretariat of the German IOC Section on behalf 
of the German Foreign Office prepared this meeting. The President of the DHI — 
as First Vice-Chairman of IOC — represents the Federal Republic of Germany on 
the Executive Council. For world-wide studies of pollution in the marine en 
vironment an international coordination group was set up in which the Federal 
Republic also cooperates. For monitoring marine pollution the establishment of 
the Integrated Global Ocean Station System (IGOSS) is to be 
promoted. The USA, Canada, Great Britain, and the Federal Republic are already 
implementing a pilot project where temperature data of the North Atlantic and 
the North Sea are exchanged via communication facilities of the weather serv 
ices. Furthermore, the DHI made investigations — also for IGOSS ■— concerning 
the time required for processing and transmitting oceanographic data from a 
major sea area. According to reports received from thirteen vessels which partic 
ipated in the international Overflow '73 expedition, temperature charts were 
compiled and transmitted as facsimile charts enabling the chief scientists to make 
their decisions for the measuring programme. 
The Deutsches Ozeanographisches Datenzentrum (DOD) 
collected and processed numerous marine-physical and marine-chemical data and 
fed them into the international network of exchange. For an internationally co 
ordinated exchange of marine-geological data, an IOC Working Group, chaired 
by the Head of the DOD, submitted a proposal for a data format whose suitability 
is now to be tested. 
The DFG and the DHI in spring 1972 participated in the international programme 
CIN E C A (Cooperative Investigations of the Northern Part of the Eastern 
Central Atlantic). With the research vessels "Meteor" (cruise 26) and 
"Planet" the hydrographic and biological processes in the upwelling area of 
nutritious water off the West African coast were studied. During "Meteor" 
cruise 27 the DHI investigated the distribution and spread of radioactive 
substances in the North Sea, the Barents Sea, the Norwegian Sea, and the North 
eastern Atlantic. The systematic survey of the Earth's topography, gravity, and 
magnetism in the sea area around Iceland, commenced in 1968, was continued 
during cruise 28. Cruise 29 led to the area of the Iberian and West 
European Deep Sea Basin for radiological measurements which had the objective 
to clarify questions in connection with the dumping of industrial wastes. 
The first research cruise undertaken in 1973 (cruise 30) was a further con 
tribution to C IN E C A. In the sea area off West Africa RV "Meteor" investi 
gated — in conjunction with vessels from France, Spain, and the USSR — the 
interaction between offshore upwelling and the Canary Current. Subsequently 
sedimentation processes were studied in the shelf region off the coast of Sierra 
Leone. With cruise 31 "Meteor" participated in the international Over 
flow '73 expedition: Together with FRV "Walther Herwig", FPV "Meer- 
katze II" and vessels from Canada, Denmark, Great Britain, Iceland, Norway, 
and the USSR, the exchange between subpolar and Atlantic water masses was 
investigated. Later in 1973 "Meteor" made aero-chemical and aero-electrical 
measurements and investigations of trace substances in the North Atlantic Ocean 
and in the Caribbean, partly as a contribution to a programme that envisages a