Acquisition of marine heat flow data and associated sediment cores and thermal measurements from T-3 Fletcher's ice island as it circulated through the Western Arctic for nearly a decade.
Location
Western Arctic Ocean, between Alpha-Mendeleev Ridge and Greenland margin. Arctic Ocean (Amerasian Basin), including Canada Basin, Mendeleev Ridge, Alpha Ridge, and Nautilus Basin
Summary
A total of 584 casts were made from T-3 to measure heat flow. Approximately 1.486 km of core was obtained from 546 of these. The remaining 38 casts included 2 that had rocks stuck in the coring tip, 3 where the complete probe was lost, and 2 where the cores were lost. Thermal gradients, thermal conductivity values, and heat flow data were successfully acquired for 356 stations.
Info derived
thermal gradients, in situ radiogenic heat content, sediment characterization, bottom water temperatures in Western Arctic Ocean
Comments
Please make lead organization just generic: "USGS"
Please make lead scientists Arthur Lachenbruch and Vaughn Marshall, with no emails attached. We may change that later after I speak with Art, who is very elderly.
Please put me on as the contact person/alternate personnel and have my email linked to this activity.
The exact number of days in the field is probably over 2000. As we finalize this FA, I will try to calculate the total number of days more accurately.
The "platform" is literally a floating ice island called T-3/Fletcher's Ice Island.
Platform
Fletchers Ice Island - T3
T-3, also known as Fletcher’s Ice Island, was a large iceberg in the Arctic Ocean used for many years as a scientific research facility by the United States Government.
Previously unpublished report from the 1970s, including heat flow measurements and radiogenic heat determinations in the High Arctic Ocean collected from 1963 to 1973. The report contains both valuable scientific information as well as data.
Digital version of the original data table recording the T-3 thermal gradients, thermal conductivity values, and heat flow for the 356 successful stations.
