MarLIN "User-defined Search" extended options
Select one of the following methods for your search. If no other search criteria are required (e.g. space or time), pressing "Continue" will list currently available search terms in the database.
* "Subject index" and "Keywords" can be filtered by broad topics (subject areas). To refine your search, you can limit those displayed by selecting one or more topics from the folowing list:
Biology/fisheries/pollution/conservation/biotechnology
Descriptive/dynamical oceanography
Chemistry/geochemistry
Meteorology/climate
Geology/geophysics
Non-living resources
Acoustics/optics/technology
Law/policy/economics/sociology
All topics
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