Brief interstadial events in the Santa Barbara basin, NE Pacific, during the past 60 kyr

Article Abstract:

At least 20 brief interstadial episodes, known as Dansgaard-Oeschger events, showed the inconstancy of the Northern Hemisphere glacial climate over the last 100 kyr. Although these events were initially thought to have affected the North Atlantic region alone, a recent discovery of ocean oxygenation and circulation in the Santa Barbara basin in the northeast Pacific Ocean shows that Greenland's ice-core regions also affected the Santa Barbara basin. The events' ecological and oceanographic effects include alterations in the benthic faunal populations and in the age and composition of bottom waters.

Observations, Natural history, Climatology, Pacific Area, Glacial climates, Santa Barbara Channel

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A 20,000-year record of ocean circulation and climate change from the Santa Barbara basin

Article Abstract:

Studies of the North Atlantic region show that sediments of the Santa Barbara basin, North Pacific Ocean, have undergone periodic changes in the oxygen content of water during the last 20,000 years. The younger waters formed during colder climates when the oxygen concentration was high. The older waters formed during the warmer climates when the oxygen concentration was low. These climate changes have correlation with those in the North Atlantic Ocean probably because of the atmospheric transmission.

Environmental aspects, Santa Barbara, California, North Pacific Ocean

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Inherently unstable climate behaviour due to weak thermohaline ocean circulation

Article Abstract:

Scientists believe wide variations in oceanic thermohaline circulation (THC) during the 150,000 years prior to the Holocene period had a strong influence over climatic variations and high-frequency variability. Steady climates were prevalent during the Holocene period when THC variability was insignificant. A global coupled ocean-atmosphere-ice general circulation model helped provide this data.

Climatic factors

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