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Roosevelt Island Ice Core Density and Beta Count Data Data DOI: https://doi.org/10.7265/N55718ZW Cite as Conway, H. (2003) "Roosevelt Island Ice Core Density and Beta Count Data" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N55718ZW. AMD - DIF Record(s) NSIDC-0139_1 Abstract This data set measures the radioactive decay of nuclear material from Northern and Southern hemisphere nuclear testing. Firn cores were taken from three locations on Roosevelt Island, an ice dome within the Ross Ice Shelf, and were measured at increasing depth for density in kilograms per cubic meter, and for beta counts per hour per kilogram. The data were collected between November and December of 1997. Measurements were taken incrementally down to approximately 17 meters for each of the three cores. Data are available in text format via ftp. Creator(s): Conway, Howard Date Created: 2003-05-14 Repository: USAP-DC (current) - NSIDC (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -161.5667, East: -160.3833, South: -79.6167, North: -79.3889 Temporal Extent(s) Start: 1997-11-01 - End: 1997-12-31 Award(s) NSF 9615347 Version: 1 Related Project(s) Radar Investigations of Former Shear Margins: Roosevelt Island and Ice Stream C Keywords Antarctica Beta Count Density Glaciers/ice Sheet Glaciology Ice Core Records Physical Properties Roosevelt Island