Published February 2015
| Version v1
Journal article
Inspection of residual flow using 224Ra/228Ra ratios in the semi-closed water body of Nakaumi, a coastal lagoon in southwest Japan
Creators
- 1. Shimane University, Matsue (Japan). Foraminiferal Laboratory, Faculty of Education
- 2. Kanazawa University, Wake, Nomi Ishikawa (Japan). Low Level Radioactivity Laboratory
- 3. Japan Marine Science Foundation, Minato, Mutsu Aomori (Japan). Mutsu Marine Laboratory
Description
In order to investigate the water circulation, we examined 228Ra/226Ra and 224Ra/228Ra activity ratios of a man-made semi-closed brackish water body in Lake Nakaumi, southwest Japan. The 224Ra/228Ra ratios in the surface water were observed to be the lowest (0.02) in the central area, while those in the surrounding waters were higher (∼0.1), thus suggesting the occurrence of an anticlockwise eddy circulation. The 224Ra/228Ra ratios in the deep waters were relatively uniform, but a basin-wide anticlockwise flow of water was also indicated. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 303
- Journal Issue
- 2
- Journal Page Range
- p. 1595-1599
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 46018952
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Descriptors DEI
- HYDROLOGY; ISOTOPE RATIO; RADIUM 224; RADIUM 229; SEAWATER; WATER CURRENTS
- Descriptors DEC
- ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON 14 DECAY RADIOISOTOPES; CURRENTS; DAYS LIVING RADIOISOTOPES; DIMENSIONLESS NUMBERS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; HYDROGEN COMPOUNDS; ISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; OXYGEN COMPOUNDS; RADIOISOTOPES; RADIUM ISOTOPES; WATER
Optional Information
- Notes
- 15 refs.