The Oceans are believed to play a significant role in climate variability,
principally on inter-annual and inter-decadal time-scales, but we still
do not fully understand how the ocean-atmosphere system interacts. One
hypothesis is that the atmosphere alone drives the oceans with the atmosphere's
intrinsic random variability resulting in the observed climate variability.
The converse hypothesis is that the oceans can drive the atmosphere. If
the oceans provide consistent long-term (inter-decadal) feedback, to the
climate system, this becomes a key issue since a “known” feedback
signal may improve or provide climate prediction capabilities. The goals of this study are to explore:
Ocean-atmosphere feedback and associated mechanisms on the 10-100+
Climate indices as a means of capturing non-linear/feedback climate
Relationships between marine environmental time series and climate
North Atlantic Study
The diagram below highlights some of the key and interesting results obtained
for regions around the North Atlantic using an analysis technique, MONACLE,
described in greater detail in the following webpages. Each time series
shows a comparison between [coloured lines] historic fish catch records
and a local climatic index, [black lines] via MONACLE.
Topliss, B.J., (2001)
A Conceptual View of the Ocean-Atmosphere Climate
System: Armchair Oceanography and Global Historic Fish Catch. Oceanography,
14, 4, 122- 128.
Topliss, B.J., (2002)
Ocean-Atmosphere Feedback: Using the Non-Stationarity
in the Climate System. GeoPhys. Res. Letter, 29, 8, 1029/2001GL014011.
This research topic is ongoing. To obtain the latest ideas, results,
and further details contact
Dr. Brenda Topliss at ToplissB@mar.dfo-mpo.gc.ca