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Filtering by: Creator Oschlies, Andreas Non-Academic Affiliation Oregon State University. Graduate School

The Ocean Circulation and Carbon Cycle during the Last Glacial Maximum

Creator:

Muglia, Juan

Abstract:

During the Last Glacial Maximum (LGM, ∼ 21 ky before present) the atmospheric CO2 concentration was about 100 ppm lower than its pre-industrial (PI)value. The missing carbon from the atmosphere must have been stored in thedeep ocean during this period, but the mechanisms driving such re-distribution ofthe carbon cycle are...

Resource Type:

Dissertation

Full Text:

Circulation and Carbon Cycle during the Last Glacial Maximum Abstract approved: Andreas Schmittner During
Nitrogen isotopes in a global ocean biogeochemical model : constraints on the coupling between denitrification and nitrogen fixation

Creator:

Somes, Christopher J.

Abstract:

We present a new nitrogen isotope model incorporated into the three-dimensional ocean component of a global Earth System Climate Model designed for millennial timescale simulations. The model includes prognostic tracers for the stable nitrogen isotopes, ¹⁴N and ¹⁵N, in the nitrate (NO₃ˉ), phytoplankton, zooplankton, and detritus variables of the marine...

Resource Type:

Masters Thesis

Full Text:

: Andreas Schmittner We present a new nitrogen isotope model incorporated into the three-dimensional
Abrupt deglacial climate changes in the North Pacific and implications for climate tipping points

Creator:

Praetorius, Summer Kate

Abstract:

Paleoclimate archives have revealed abrupt climate events that are superimposed on more gradual climate changes throughout the last glacial and deglacial periods. The underlying causes of such rapid climate changes are still poorly understood, but the strong expression of these events in northern hemisphere records likely points to climatic mechanisms...

Resource Type:

Dissertation

Full Text:

Prahl, Andy Ross, Andreas Schmittner, Jeremy Shakun, John Southon, Joseph Stoner, Matt Wolhowe, and