A mako shark caught by commercial fishermen off North Carolina traveled more than 8,500 miles after a tracking device was attached 18 months earlier, an ocean research group says.
Ecology
Dec 8, 2016
0
106
From 1975 on, the global surface ocean has shown a pronounced-though wavering-warming trend. Starting in 2004, however, that warming seemed to stall. Researchers measuring the Earth's total energy budget-the balance of sunlight ...
Earth Sciences
Jul 2, 2013
71
0
The waters surrounding Antarctica may be one of the last places to experience human-driven climate change. New research from the University of Washington and the Massachusetts Institute of Technology finds that ocean currents ...
Earth Sciences
May 30, 2016
76
1517
Scientists claim to have found the 'missing link' in the process that leads to an ice age on Earth.
Earth Sciences
Jan 13, 2021
26
4473
Scientists have recorded what is believed to be the largest wave ever in the southern hemisphere, a 23.8 metre (78 foot) monster the height of an eight-floor building.
Earth Sciences
May 11, 2018
0
1783
Several years ago, while analyzing ice core samples from Antarctica's James Ross Island, scientists Joe McConnell, Ph.D., and Nathan Chellman, Ph.D., from DRI, and Robert Mulvaney, Ph.D., from the British Antarctic Survey ...
Earth Sciences
Oct 6, 2021
0
416
The severe droughts in the USA and Australia are the first sign that the tropics, and their warm temperatures, are apparently expanding in the wake of climate change. But until now, scientists have been unable to conclusively ...
Earth Sciences
Sep 25, 2020
3
2916
A new study published in Nature Communications has revealed that the interplay between meandering ocean currents and the ocean floor induces upwelling velocity, transporting warm water to shallower depths. This mechanism ...
Earth Sciences
Apr 11, 2024
0
1664
Colorado State University Distinguished Professor Sonia Kreidenweis and her research group identified an atmospheric region unchanged by human-related activities in the first study to measure bioaerosol composition of the ...
Earth Sciences
Jun 2, 2020
0
730
A new study by the University of Liverpool provides the first evidence that wandering albatrosses, one of the widest-ranging seabirds, may use infrasound to help them navigate long and featureless foraging trips covering ...
Plants & Animals
Oct 10, 2023
0
76
The Southern Ocean, also known as the Great Southern Ocean, the Antarctic Ocean and the South Polar Ocean, comprises the southernmost waters of the World Ocean south of 60° S latitude. The International Hydrographic Organization has designated the Southern Ocean as an oceanic division encircling Antarctica. Geographers disagree on the Southern Ocean's northern boundary or even its existence (see below), sometimes considering the waters part of the South Pacific, South Atlantic, and Indian Oceans instead.
Some scientists consider the Antarctic Convergence, an ocean zone which fluctuates seasonally, as separating the Southern Ocean from other oceans, rather than 60° S. This ocean zone is where cold, northward flowing waters from the Antarctic mix with warmer sub-Antarctic waters.
The International Hydrographic Organization (IHO) regards the Southern Ocean as the fourth-largest of the five principal oceanic divisions and the latest-defined one. The IHO promulgated the decision on its existence in 2000, though many mariners have long regarded the term as traditional. The Southern Ocean appeared in the IHO's Limits of Oceans and Seas second edition (1937), disappeared from the third edition (1957), and resurfaced in the fourth edition (not yet[update] formally adopted due to a number of unresolved disputes, including the lodgement of a reservation by Australia). This change reflects the importance placed by oceanographers on ocean currents.[clarification needed]
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