A new study led by the University of Washington looks at the causes of this rapid deoxygenation and links it to two of the ocean's most powerful currents: the Gulf Stream and the Labrador Current
. The study, published Sept.
Zantopp, 2006: Deep Labrador Current
and its variability in 1996-2005.
In 1912 the Caribbean experienced an unusually hot summer and so the Gulf Stream was particularly intense; the Titanic hit the iceberg right at the intersection of the Gulf Stream and the Labrador Current
The icebergs "find their way into the Labrador Current
and begin their journey to the southward" in a stop-and-go manner, the 1938 Bowditch manual explains:
On the other hand, High Arctic glacial melt could increase the volumes of sea ice transported to southern latitudes via the Labrador Current
, thereby increasing, at least initially, the occurrence of arctic foxes at isolated, southern seabird colonies.
The expedition will then continue west towards Canada, where oceanographers will measure an ocean tract across the Labrador Current
before returning to Kangerlussuaq on October 6.
ANSWERS: 1 Iceland' 2 A supplementary competition in which heat runners-up compete for a place in the final' 3 The invasion of Poland' 4 St Sebastian' 5 Children's nurse' 6 Table tennis' 7 The Labrador Current
' 8 Leon and Michael Spinks' 9 Westlife' 10 Mexico.
Instead, the Labrador Current
, flowing down from the Arctic, refrigerates the nearby Gulf of St.
Chances are pretty good, according to one of the naturalists, that the prolific Jakobshavn Glacier spawned the infamous iceberg that cruised south with the cold Labrador Current
to sink the Titanic.
But at least we are getting the westerly winds we need to get us across the Labrador Current
into the Gulf Stream.
The Labrador Current
can clog the nearby Strait of Belle Isle with polar ice any June, and snow lingers in the high ravines of the Tablelands all summer.
But an extremely high spring tide could refloat them, and the ebb tide would carry them back out into the Labrador Current
where the icebergs would resume drifting southward," the Daily Mail quoted lead researcher Dr Donald Olson as saying.