Atmospheric krypton-85 activity concentrations

Published: 15-10-2020| Version 1 | DOI: 10.17632/p32bmw6rgs.1
Contributors:
Arne Kersting,
Andreas Bollhoefer,
Clemens Schlosser,
Sabine Schmid,
Martina Konrad,
Karen Barry,
Axel Suckow

Description

The data collection consists of eleven datasets of atmospheric krypton-85 activity concentrations with 4 datasets from monitoring stations in the northern hemisphere ("Early Measurements NH", "Freiburg", "Schauinsland" and "Jungfraujoch") and 7 datasets from monitoring stations in the southern hemisphere ("Adelaide", "Antarctica", Cape Grim", "Cape Point", "Darwin", "Tahitit" and "Terre-Adelie"). "Adelaide" start: July 2015; end: ongoing (June 2020); number of measurements: 255; location: Adelaide, Australia; "Antarctica" start: June 1983; end: January 2008; number of measurements: 415; location: near Neumayer station, Antarctica; "Cape Grim" start: April 1987; end: July 1996; number of measurements: 166; location: Tasmania, Australia; "Cape Point" start: August 1985; end: October 1997; number of measurements: 415; location: Cape Point, South Africa; "Darwin" start: August 2007; end: May 2010; number of measurements: 120; location: Darwin, Australia; "Early Measurements NH" start: December 1959; end: May 1976; number of measurements: 204; location: various monitoring stations in the northern hemisphere; "Freiburg" start: June 1973; end: ongoing (July 2020); number of measurements: 2386; location: Freiburg, Germany; "Jungfraujoch" start: January 1990; end: ongoing (June 2020); number of measurements: 1547; location: Berner Alps, Switzerland (3500 m a.s.l); "Schauinsland" start: February 1976; end: ongoing (July 2020); number of measurements: 2386; location: near Freiburg, Germany (1200 m a.s.l); "Tahiti" start: August 1969; end: November 1976; number of measurements: 18; location: Tahiti, French Polynesia; "Terre-Adélie" start: March 1968; end: October 1977; number of measurements: 32; location: eastern Antarctica; All measurements were conducted via decay counting in gas proportional counters with a measurement uncertainty of about 3%. However, for the datasets "Tahiti" and "Terre-Adélie" no errors were given in the original publications and a conservative estimate of 10% measurement uncertainty was taken. Most of the data has been published already and the sources accessible via the internet are found in the reference section. A more detailed description of the data collection and a full list of references can be found in: A. Kersting, C. Schlosser, A. Bollhöfer, S. Schmid, M. Konrad, K. Barry und A. Suckow, „Krypton-85 datasets of the northern and southern hemisphere collected over the past 60 years,“ Data in Brief, in Press. The entire data collection is analysed in: A. Kersting, C. Schlosser, A. Bollhöfer und A. Suckow, “Evaluating 5 decades of atmospheric 85Kr measurements in the southern hemisphere to derive an input function for dating water and ice with implications for interhemispheric circulation and the global 85Kr emission inventory.“ Journal of Environmental Radioactivity, in Press.

Files