1980 - National Institute of Oceanography

Visakhapatnam Port at the request of the port authorities. There was another request
from the drill ship "Fredericksberg, for the bathymetry survey of their new location
for the deployment of the drill ship. These surveys were also completed.
Cruise 80 (Chief Scientist—C.K. Gopinathan)
This cruise was organised for 11 days from 8 to 18 October to study the physical,
chemical and biological features of the waters off Coromandal coast (southwest
Bay of Bengal) at the site of the proposed OTEC plant in Tamil Nadu.
A distance of about 350 line km was covered
during the cruise and 24 stations were worked.
Surface meteorological observations such as
recording of wind speed and direction, sea surface
temperature, atmospheric pressure at sea
level, wet and dry bulb readings were carried
out at all the stations.
Oceanographic and Meteorological
Data Buoy deployed off Goa in
the Arabian Sea.
Cruise 81 (Chief Scientist—V.V.R. Varadachari)
This short cruise of 3 days, from 23 to 25
October, was organised off Goa for launching a
meteorological and oceanographic data buoy procured
by the Institute from the Marine Exploration
Ltd. U.K. (MAREX). The buoy was
deployed with the help of the ship's derrick on
24th morning at location lat. 15°2l'N, long.
73°05' E, where water depth was 100 m.
The buoy was retrieved and brought back
into the ship on the same day in the evening-
Apart from the NIO. scientists from BARC,
TIFR, IMD, NPOL, SAC and MAREX (UK)
participated in the cruise. BARC scientists conducted
B.T. observations and ship's speed during
the return journey of the ship. Scientists from
the TIFR made Radon measurements and scientists from SAC collected data on
chlorophyll from the sea and made irradiance measurements.
Cruise 82 (Chief Scientist—V.V.R. Varadachari)
This cruise was for 15 days duration in the MONEX square (occupied earlier
during MONEX-79 programme and in three other cruises) to study the oceanographic
conditions in the area during the peried from 1 to 15 November.
Data were collected from 48 stations. Results indicated that air temperature
and sea surface temperature were low. At all the stations, plankton samples were
also collected.
Besides the NIO scientists, one scientist from TIFR and two from GSI also
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