Sentences with phrase «ocean during the last ice age»

How a seal ended up in this giant icy wonderland is anyone's guess; one theory is that members of the species may have traveled up ice - choked rivers from the Arctic Ocean during the last ice age, notes the California Academy of Sciences magazine, bioGrahpic.

Not exact matches

Great flood: the filly of a large basin by raising oceans during the warming period after the last ice age.

The data showed that, in comparison to today, the Atlantic Ocean surface circulation was much weaker during the Little Ice Age, a cool period thought to be triggered by volcanic activity that lasted from 1450 - 1850.

To Erlandson, these miniature trees look like a trail left by mariners who voyaged along the stormy northern coasts of the Pacific Ocean from Japan to the Americas during the last Ice Age.

This is because the campaign's seafloor survey revealed features under the ocean, such as troughs cut by glaciers during the last ice age, which must continue upstream under the glacial ice.

The study, by an international team of scientists led by the University of Cambridge, examined how changes in ocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shOcean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shells.

Analysing new data from marine sediment cores taken from the deep South Atlantic, between the southern tip of South America and the southern tip of Africa, the researchers discovered that during the last ice age, deep ocean currents in the South Atlantic varied essentially in unison with Greenland ice - core temperatures.

A new study shows how huge influxes of fresh water into the North Atlantic Ocean from icebergs calving off North America during the last ice age had an unexpected effect — they increased the production of methane in the tropical wetlands.

During the last ice age, 10 - 20,000 years ago, ocean levels were up to 400 feet lower than today's.

The expansion of sea ice during the last ice age acted as a «lid» on the Southern Ocean, preventing CO2 from escaping.

During the Earth's ice ages the Pacific Ocean stored large amounts of carbon, which for some reason it released again close to the last glacial period's end, warming the world and melting most of the icecaps.

The AMO during the Little Ice Age was characterized by a quasi-periodicity of about 20 years, while the during the Medieval Warm Period the AMO oscillated with a period of about 45 to 65 years... The observed intermittency of these modes over the last 4000 years supports the view that these are internal ocean - atmosphere modes, with little or no external forcing... However, the geographic variability of these periodicities indicated by ice core data is not captured in model simulations.&raqIce Age was characterized by a quasi-periodicity of about 20 years, while the during the Medieval Warm Period the AMO oscillated with a period of about 45 to 65 years... The observed intermittency of these modes over the last 4000 years supports the view that these are internal ocean - atmosphere modes, with little or no external forcing... However, the geographic variability of these periodicities indicated by ice core data is not captured in model simulations.&raqice core data is not captured in model simulations.»

Warm ocean water existed south of Greenland, wedged between two major ice sheets during the last ice age.

The ubiquitous character of certain events further confirms their importance: «the Younger Dryas and a large number of abrupt changes during the last ice age called Dansgaard / Oeschger events (23 abrupt changes into a climate of near - modern warmth and out again, during the last glacial period) have been corroborated in multiple ice cores from Greenland, Antarctica and tropical mountains, marine sediments from the North Atlantic Ocean, the tropical Atlantic, eastern Pacific, and Indian Oceans, and from various records on land.

When the last ice age ended, the oceans were very close to 120 m (nearly 400 feet) LOWER than today (NASA's own website) As for runaway GHG induced heat, at the hight of our present right now, sea levels are STILL 4 - 6 meters LOWER than they wrre during the previous interglacial.

Long considered to be the planet's ultimate safety valve for excess carbon dioxide - drawing down close to 25 % of all anthropogenic emissions - the oceans may not prove as effective at storing the greenhouse gas as they did during the last ice age,

Similarly, Demezhko and Gornostaeva (2015) found that the heat energy change in the deep oceans during the climate transition from the last ice age to this current interglacial occurred «2 - 3 thousands of years» before the increases in surface temperature and CO2, and that «the increase of carbon dioxide may be a consequence [rather than a cause] of temperature increasing».