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2020-04-16
The LAB60 simulation is a coupled ocean sea-ice model (NEMO) that uses grid refinement to achieve high resolution (1/60 of a degree) within the Labrador Sea. This simulation starts in 2002 and will cover a period of over 10 years. This video shows the mixed layer depth (meters) from 2004 through...
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Mixed Methods Research: A comprehensive approach for study into the New Zealand voluntary carbon market
Download2016
Murphy, Maya, Milne, Markus, Birchall, S. Jeff
Climate change and solutions to solving this wicked problem require a mixed methods research approach that draws on quantitative and qualitative inquiry together. The purpose of this article is to demonstrate the applicability (and effectiveness) of a mixed methods approach applied to research...
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Modeling dissolved and particulate 230Thin the Canada Basin: Implications for recent changes in particle flux and intermediate circulation
Download2020-01-01
Yu, Xiaoxin, Allen, Susan E., Francois, Roger, Grenier, Melanie, Myers, Paul G., Hu, Xianmin
Global climate change has had large impacts on the Arctic region including rapid reductions in sea ice and rapid increases in surface air temperatures. Documenting the consequences of these changes in the Arctic Ocean is difficult, however, because accessibility limits observations in space and...
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Modeling the paleocirculation of the Mediterranean: The Last Glacial Maximum and the Holocene with emphasis on the formation of sapropel S1
Download1998
Myers, Paul G., Rohling, Eelco J., Haines, Keith
An ocean general circulation model is used to simulate the thermohaline circulation in the Mediterranean sea during the last glacial maximum and the Holocene, when the sapropel S1 was deposited. The model is forced by prescribed surface temperatures and salinities, where present-day values lead...
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Modern travertine precipitation at Lýsuhóll hot springs, Snæfellnes, Iceland: implications for calcite crystal growth.
Download2017-01-01
Three thermal springs, at Lýsuhóll on Snæfellnes Peninsula on the west coast of Iceland, with vent water temperatures of 20 to 46°C are characterized by thriving microbial mats that mediate the precipitation of opal-A, Fe-rich opal-A, Fe-rich reticulate coatings, and calcite that are intermixed...
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Movies of River Water Tracers in ANHA4 NEMO Simulation
2024-01-01
Online passive tracers for river runoff input from the ANHA4 ocean model. EPM015 is was run with Dai and Trenberth for river runoff, and EPM151 was run with A-HYPE for river runoff. Both have a forced atmosphere from CGRF. The difference between the two tracers can also be seen, where positive...
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N2 in deep subsurface fracture fluids of the Canadian Shield: Source and possible recycling processes
Download2021-12-20
Li, Long, Li, Kan, Giunta, Thomas, Warr, Oliver, Labidi, Jabrane, Lollar, Barbara Sherwood
In addition to high concentrations of CH4 and H2, abundant dissolved N2 is found in subsurface fracture fluids in Precambrian cratons around the world. These fracture fluids have hydrogeological isolation times on order of thousands to millions and even billions of years. Assessing the sources...
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Nature of slab-mantle interactions recorded by coupled δ13C–δ15N–δ18O signatures and elemental compositions of Koidu diamonds and their inclusions
Download2023-01-01
Lai, Mei Yan, Stachel, Thomas, Stern, Richard A., Li, Kan, Pearson, D. Graham, Harris, Jeff W.
Abstract Eclogitic diamond formation can be associated with interactions between subducted slabs and ambient mantle. To gain a better understanding of the extent of chemical exchange between slabs and ambient mantle and the mechanisms of coeval diamond formation, we examined 16 diamonds with...
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2015-01-01
Donovan, S.K., Jones, B., Harper, D.A.T.
The first fossil echinoids are recorded from the Cayman Islands. A regular echinoid, Arbacia? sp., the spatangoids Brissus sp. cf. B. oblongus Wright and Schizaster sp. cf. S. americanus (Clark), and the clypeasteroid Clypeaster sp. are from the Middle Miocene Cayman Formation. Test fragments of...
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2014
In 2009, New Zealand’s (NZ) new National-led government abandoned the Carbon Neutral Public Service (CNPS) program, a Labour-led government initiative intended to help Government achieve carbon neutrality within its core agencies. This short analysis article provides an overview and brief...