Post-Expedition Report for USGS T-3 Ice Island Heat Flow Measurements in the High Arctic Ocean, 1963-1973

Online link https://cmgds.marine.usgs.gov/catalog/whcmsc/field_activities/1963_001_fa/1963-001-FA_report_meta.faq.html
Description In February 1963, the U.S. Geological Survey (USGS) began a study of heat flow in the Arctic Ocean Basin and acquired data at 356 sites in Canada Basin and Nautilus Basin and on Alpha-Mendeleev Ridge by the end of the project in 1973. The USGS heat flow and associated piston coring operations were conducted from a scientific station on the freely drifting T-3 Ice island (also known as Fletcher's Ice Island). The Naval Arctic Research Laboratory (NARL) had established T-3 as a drifting research station in 1962 and, along with the Office of Naval Research, kept it operating continuously until September 28, 1974. The USGS heat flow studies were part of the scientific effort supported by the NARL. [More]
Originators Lachenbruch, Arthur H.; Marshall, B. Vaughn; and Ruppel, Carolyn D.

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Map showing the drift path of the T-3 ice island (black curve) and the successful heat flow penetrations (red circles) documented in this report. The background bathymetry is from: Jakobsson, M., et al. ( 2012),  The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophys. Res. Lett.,  39, L12609, doi:10.1029/2012GL052219. Inset shows the Arctic Ocean and surrounding land masses, with the red box indicating the approximate area corresponding to the larger map.
Map showing the drift path of the T-3 ice island (black curve) and the successful heat flow penetrations (red circles) documented in this report. The background bathymetry is from: Jakobsson, M., et al. ( 2012), The International Bathymetric Chart of the Arctic Ocean (IBCAO) Version 3.0, Geophys. Res. Lett., 39, L12609, doi:10.1029/2012GL052219. Inset shows the Arctic Ocean and surrounding land masses, with the red box indicating the approximate area corresponding to the larger map.