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Title: Delta 14CO2 Record from Vermunt, Austria, February 1959 - June 1983

Abstract

The sampling at Vermunt was discontinued in 1983. During sampling from 1959 to 1983, the sampling methods were modified twice (Levin et al. 1985). From 1959 through November 1965, three dishes with 1.5 L of 0.5 normal sodium hydroxide (NaOH) carbonate-free solution were exposed to the atmosphere for ~3 days, and the atmospheric CO2 absorbed during that time was recovered by acid evolution. From November 1965 through May 1975, samples were collected by pumping fresh air continuously for 10 days through a box containing 1.5 L of a 0.5 normal NaOH solution. The method has been described by Münnich and Vogel (1959). From May 1975 to the time sampling stopped, a technique described by Levin et al. (1980) was used. Air was pumped through a rotating glass tube filled with a packed bed of Raschig rings (hard glass) to enlarge the surface of the absorbing NaOH solution (200 ml of 4 normal NaOH). The CO2 absorption was quantitative and samples represent mean values of 10 days to 2 weeks. In the laboratory, the samples were extracted from the NaOH solution in a vacuum system by adding hydrochloric or sulfuric acid. The CO2 gas samples were purified over charcoal and countedmore » in a proportional counter (Schoch et al. 1980). Delta 14C values are given relative to the NIST oxalic acid activity corrected for decay (Stuiver and Polach 1970).« less

Creator(s)/Author(s):
; ; ; ; ; ; ;
Publication Date:
Product Type:
Dataset
Research Org.:
Environmental System Science Data Infrastructure for a Virtual Ecosystem; Carbon Dioxide Information Analysis Center (CDIAC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Subject:
54 ENVIRONMENTAL SCIENCES
OSTI Identifier:
1394378
DOI:
10.3334/CDIAC/ATG.028

Citation Formats

Levin, Ingeborg, Kromer, Bernd, Schoch-Fischer, H., Bruns, M., Munnich, M., Berdau, D., Vogel, J. C., and Munnich, K. O. Delta 14CO2 Record from Vermunt, Austria, February 1959 - June 1983. United States: N. p., 1994. Web. doi:10.3334/CDIAC/ATG.028.
Levin, Ingeborg, Kromer, Bernd, Schoch-Fischer, H., Bruns, M., Munnich, M., Berdau, D., Vogel, J. C., & Munnich, K. O. Delta 14CO2 Record from Vermunt, Austria, February 1959 - June 1983. United States. doi:10.3334/CDIAC/ATG.028.
Levin, Ingeborg, Kromer, Bernd, Schoch-Fischer, H., Bruns, M., Munnich, M., Berdau, D., Vogel, J. C., and Munnich, K. O. 1994. "Delta 14CO2 Record from Vermunt, Austria, February 1959 - June 1983". United States. doi:10.3334/CDIAC/ATG.028. https://www.osti.gov/servlets/purl/1394378. Pub date:Sat Jan 01 00:00:00 EST 1994
@article{osti_1394378,
title = {Delta 14CO2 Record from Vermunt, Austria, February 1959 - June 1983},
author = {Levin, Ingeborg and Kromer, Bernd and Schoch-Fischer, H. and Bruns, M. and Munnich, M. and Berdau, D. and Vogel, J. C. and Munnich, K. O.},
abstractNote = {The sampling at Vermunt was discontinued in 1983. During sampling from 1959 to 1983, the sampling methods were modified twice (Levin et al. 1985). From 1959 through November 1965, three dishes with 1.5 L of 0.5 normal sodium hydroxide (NaOH) carbonate-free solution were exposed to the atmosphere for ~3 days, and the atmospheric CO2 absorbed during that time was recovered by acid evolution. From November 1965 through May 1975, samples were collected by pumping fresh air continuously for 10 days through a box containing 1.5 L of a 0.5 normal NaOH solution. The method has been described by Münnich and Vogel (1959). From May 1975 to the time sampling stopped, a technique described by Levin et al. (1980) was used. Air was pumped through a rotating glass tube filled with a packed bed of Raschig rings (hard glass) to enlarge the surface of the absorbing NaOH solution (200 ml of 4 normal NaOH). The CO2 absorption was quantitative and samples represent mean values of 10 days to 2 weeks. In the laboratory, the samples were extracted from the NaOH solution in a vacuum system by adding hydrochloric or sulfuric acid. The CO2 gas samples were purified over charcoal and counted in a proportional counter (Schoch et al. 1980). Delta 14C values are given relative to the NIST oxalic acid activity corrected for decay (Stuiver and Polach 1970).},
doi = {10.3334/CDIAC/ATG.028},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Works referencing / citing this record:

Free and protected soil organic carbon dynamics respond differently to abandonment of mountain grassland
journal, January 2012


Evaluation of 14 C doses since the end of the 1950s in metropolitan France
journal, July 2007