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37. Jahresber. Dt. Hydrogr. Inst. 1982 
peat itself in 1982. During a "Gauß" cruise in May, the spreading behav 
iour of exhaust gas plumes from incineration ships during the incinera 
tion of wastes over the North Sea was investigated in co-operation with 
other Institutes. 
The physical investigations concerning mixing processes in the near-bot 
tom layer and in the region of the shallow water fronts of the North Sea, 
as well as the commencement of a current measurement programme in the 
Baltic Sea, were made to provide answers to questions concerning trans 
port and spreading processes. 
The nautical services operated in the normal way. The DHI tested nauti 
cal systems, equipment, and instruments and controlled the compliance 
with the Ship Safety Regulations on board ship. 
The DHI issued 13 permits for the carrying out of research in accord 
ance with the Bundesberggesetz (Federal Mining Law). In accordance with 
the Hohe-See-Einbringungsgesetz (High Seas Dumping Law), 9 permits and 
3 permit extensions for the dumping into and the incineration of wastes 
on the High Seas were given. In several cases, applications for inciner 
ation at sea were rejected, because - owing to recycling and new incin 
eration plants on land - a land disposal of the wastes was possible. In 
two cases, a fine was imposed for the illegal introduction of wastes in 
to the High Seas. Proceedings were also taken against three further il 
legalities, likewise 14 processes because of illegal discharge of oil 
into the High Seas. 
The Library, which also looks after the interests of the Maritime Trans 
port Division of the Federal Minister of Transport and the Seewetteramt 
of the German Weather Service, increased its stock to 112,000 volumes. 
All the tasks in accordance with Law were also fulfilled in this year; 
however, the work was rendered considerably more difficult owing to the 
ever increasing shortage of personnel.