Dissolved oxygen in the Dead Sea— seasonal changes during the holomictic stage |
| |
| Authors: | Michal Shatkay David A Anati Joel R Gat |
| |
| Institution: | (1) Department of Environmental Sciences and Energy Research, Weizmann Institute of Science, 76100 Rehovot, Israel;(2) Present address: Center for Research in Particle Physics, Carleton University, KIS 5B6 Ottawa, Ontario, Canada;(3) Present address: Institute of Earth Sciences, the Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel |
| |
| Abstract: | Measurements of dissolved oxygen, density and temperature were con ducted in the Dead Sea between August 1987 and December
1989. Oxygen concentrations were found to vary around an average value of 0.8 mlSTP (standard temperature and pressure) per
kg. Dissolved oxygen variations were found to reflect both physical processes (a deepening of the epilimnion, a turnover etc.)
and chemical processes (oxidation reduction). Transport coefficients for the oxygen exchange across the air/sea interface
were found to be generally low compared to expected values based on laboratory experiments; the presence of surface films
which inhibit the gas exchange rates under calm weather conditions is suspected. During stormy weather, the exchange rates
were considerably higher, suggesting that the entrainment of bubbles was involved in the gas exchange process.
Contribution No. 95, Department of Environmental Sciences and Energy Research. The Weizmann Institute of Science |
| |
| Keywords: | Dead Sea dissolved oxygen gas exchange |
| 本文献已被 SpringerLink 等数据库收录！ |
|
