Comparison of oceanic. delta. /sup 14/C data with those of GEOSECS: vertical profiles in 1973 (GEOSECS) and in 1980 at (30/sup 0/ N, 170/sup 0/ E) in the northeastern Pacific Ocean
Journal Article
·
· Radiocarbon; (United States)
OSTI ID:6181280
The vertical profile of radiocarbon at (30/sup 0/ N, 170/sup 0/ E) measured in 1980 was compared with the GEOSECS data measured in 1973. /sup 14/C was extracted from 200L of sea water, converted to C/sub 2/H/sub 2/, and analyzed with a gas proportional counter. The authors profile and that of GEOSECS were in good agreement below 700m depth without systematic deviation of ..delta../sup 14/C values between both measurements. On the other hand, a ..delta../sup 14/C increase was observed above 700m depth, reflecting the transient addition, in 6.6 years, of bomb /sup 14/C to the intermediate layer from the atmosphere.
- Research Organization:
- Univ. of Tokyo, Japan
- OSTI ID:
- 6181280
- Journal Information:
- Radiocarbon; (United States), Journal Name: Radiocarbon; (United States) Vol. 29:1; ISSN RACAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
520101* -- Environment
Aquatic-- Basic Studies-- Radiometric Techniques-- (-1989)
520300 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
54 ENVIRONMENTAL SCIENCES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON ISOTOPES
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
INTERLABORATORY COMPARISONS
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
MASS TRANSFER
NUCLEI
PACIFIC OCEAN
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADIONUCLIDE MIGRATION
SEAS
SURFACE WATERS
TRACER TECHNIQUES
YEARS LIVING RADIOISOTOPES
Aquatic-- Basic Studies-- Radiometric Techniques-- (-1989)
520300 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
54 ENVIRONMENTAL SCIENCES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON ISOTOPES
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
INTERLABORATORY COMPARISONS
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
MASS TRANSFER
NUCLEI
PACIFIC OCEAN
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADIONUCLIDE MIGRATION
SEAS
SURFACE WATERS
TRACER TECHNIQUES
YEARS LIVING RADIOISOTOPES