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INFORMATION ASPECTS OF OCEANOGRAPHIC REMOTE SENSING DATA
by
P.J.F. Geerders
Netherlands Centre for
Oceanographic Data
c/o KNMI
P.O.Box 201
3730 AE DE BILT
the Netherlands
This paper will illustrate some experiences of oceanographers
with the use of Remote Sensing as a tool for their work. This
work can be in the open ocean or near the coast or in estuaries.
Especially, the problems of acquisition and processing of RS data
will be given attention. The paper will try to describe a feasible
‘link between the data- and information exchange within the
oceanographic world and the distribution of Remotely Sensed
oceanographic data.
IOC/IODE Task Team on Oceanographic Remote Sensing Data
In January 1979, the Working Committee on International Oceano-
graphic Data Exchange, IODE, of the Intergovernmental Oceano-
graphic Commission, IOC, established a Task Team on "Exchange and
Archival of Air- and Spaceborne Remotely Sensed Oceanographic
Data". The terms of reference include activities like:
- identify the needs for RS data and for formats for exchange
of such data,
- identify available data and make recommendations on their
exchange and archiving.
The Task Team has recognised that the main problem today is the
problem of "awareness". Although the present RS dataholders make
large efforts to advertise their dataholdings and the dataproducts
they can produce, still a major part of the oceanographic
community is unaware of this.
The IODE forms the meeting point for the many national oceano-
graphic datacentres that exist in the world. They are responsible
for the exchange of oceanographic data and information to the
benifit of the oceanographic community. The working Committee
gives its support to various international programmes with oceano-
graphic aspects. Besides the national datacentres, there are data-
centres for specific subjects. Finally, as main focal points,
there are two World Data Centres for Oceanography, one in
Washington and one in Moscow. For the exchange of data and
information within this "network", standards have been developed
Recently the General Format 3 (GF-3) was developed and accepted
for oceanographic data exchange.
Satellite data
Satellites for ocean observation produce immense amounts of
information and data. As an example, SEASAT produced,from
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