The  Deutsches  Hydrographisches  Institut  (PHI)  ln  1985

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of  a  numerical  model,  the  spreading  of  the  substances  reaching  the  North
Sea  from  the  rivers  was  investigated.
The  establishment  of  automatic  registering  measurement  stations  of  the
oceanographic  measurement  grid,  because  of  the  change-over  to  the  light
vessel  replacement  system,  was  advanced  further.
The  Nordostatlantisches  Monitoring-Programm  (NOAMP)  for  the  spreading  of
substances  in  the  deep  sea  was  completed  after  two  final  research
cruises.  An  areal  radiological/oceanographic  coverage  of  the  northern
North  Sea  as  far  as  Spitsbergen  took  place.  In  addition,  the  heavy  metal
content,  the  spreading  of  organohalogen  compounds  in  seawater  for  the
Helsinki  Convention,  and  the  currents  in  the  North  Sea  and  the  Baltic
Sea  were  investigated.
The  tests  of  nautical  systems,  equipment,  and  instruments,  the  supervision ­
  of  the  compliance  with  the  Ship  Safety  Regulations  (SchSV)  by  controls ­
  carried  out  on  board,  and  the  recognition  and  supervision  of  firms
for  the  testing  of  nautical  systems,  equipment,  and  instruments  were
carried  out  in  the  normal  way.  Further  suitable  persons  were  authorized
as  auxiliary  bodies  for  the  DHI.
In  the  development  of  radar  installations,  the  trend  to  digital  screen
signal  processing  continued.  On  the  whole,  one  could  ascertain  from  the
type-testing  that  many  manufacturers  of  nautical  systems  and  pieces  of
equipment  make  full  use  of  the  technical  possibilities  of  the  ADP.
Exceptions  to  the  requirements  of  the  Ship  Safety  Regulations  were
permitted  if  a  comparable  safety  of  the  ship  was  guaranteed  in  another
manner.
The  setting-up  and  testing  of  the  devices  for  the  testing  of  the
behaviour  of  nautical  systems  and  pieces  of  equipment  -  under  the
environmental  conditions  (vibration,  cold,  heat,  humidity,  seawater)
encountered  on  board  ship  -  in  a  laboratory  especially  fitted  out  for
that  task  was  completed  near  the  end  of  the  year.
The  transmission  of  time  signals  over  Norddeich  Radio  and  Kiel  Radio  was
discontinued  on  1st  November  on  the  instruction  of  the  Federal  Minister
of  Transport.
In  accordance  with  the  Bundesberggesetz  (Federal  Mining  haw),  the  DHI
approved  four  applications  in  1985  for  the  carrying  out  of  research
actions  on  the  continental  shelf  of  the  Federal  Republic  of  Germany  and
concluded  two  administrative  agreements.  In  accordance  with  the  Hohe-See-Einbringungsgesetz
  (High  Seas  Dumping  haw),  seven  permits  were
issued  for  the  incineration  of  wastes  at  sea  and  five  permits  for  the
dumping  of  wastes  in  the  High  Seas.  One  permit  for  the  incineration  of
wastes  at  sea  was  withdrawn,  and  one  application  for  the  granting  of  a
permit  for  incineration  of  wastes  in  accordande  with  the  allowance  of
the  haw  was  rejected  because  the  possibility  of  disposal  on  land
existed.
This  year  the  DHI,  again  in  collaboration  with  the  Netherlands  marine
environmental  protection  authority  -  Rijkswaterstaat,  has  carried  out
regular  monitoring  flights  over  the  continental  shelf  of  the  Federal