Comparison of Oceanic Δ14C Data with Those of GEOSECS: Vertical Profiles in 1973 (GEOSECS) and in 1980 at (30° N, 170° E) in the Northwestern Pacific Ocean
- 1 January 1987
- journal article
- research article
- Published by Cambridge University Press (CUP) in Radiocarbon
- Vol. 29 (1) , 53-56
- https://doi.org/10.1017/s0033822200043551
Abstract
The vertical profile of radiocarbon at (30° N, 170° E) measured in 1980 was compared with the GEOSECS data measured in 1973. 14C was extracted from 200L of sea water, converted to C2H2, and analyzed with a gas proportional counter. Our profile and that of GEOSECS were in good agreement below 700m depth without systematic deviation of Δ14C values between both measurements. On the other hand, a Δ14C increase was observed above 700m depth, reflecting the transient addition, in 6.6 years, of bomb 14C to the intermediate layer from the atmosphere.Keywords
This publication has 5 references indexed in Scilit:
- Precise Determination of Dissolved Gases in Sea Water by Shipboard Gas ChromatographyBulletin of the Chemical Society of Japan, 1980
- GEOSECS Pacific RadiocarbonRadiocarbon, 1980
- Discussion Reporting of 14C DataRadiocarbon, 1977
- Geosecs North Atlantic radiocarbon and tritium resultsEarth and Planetary Science Letters, 1974
- University of Tokyo Radiocarbon Measurements VRadiocarbon, 1974