NDLI: Studying chemical exchange across the water-bed interface in Golubaya Bay, the Black Sea

Content Provider	Springer Nature Link
Author	Rozav, A. G. Vershinin, A. V. Egorov, A. V.
Copyright Year	2010
Abstract	The results of first application of automated bottom station for studying chemical exchange across the water-bed interface (IO RAS lander) were obtained for the case of sediments in the northwestern Black Sea near Gelendzhik (Golubaya Bay). The lander is equipped with bottom chambers, sensors of environmental characteristics, and samplers, allowing fluxes of chemical elements through the water-bed interface to be determined directly. Bottom sediments were represented by organogenous silts containing hydrogen sulfide. The high activity of diagenetic processes resulted in a higher consumption of O$_{2}$ by sediments (the flux from the bottom water was 130 mM/(m$^{2}$/day), high fluxes of biogenic elements (P, Si,) and metals (Mn, Fe). At the same time, fluxes across the water-bed interface were evaluated based on the difference between concentrations of these elements in the near-bed and silt water (Fick’s law). The obtained data demonstrate the priority of direct measurements of fluxes (lander) over the calculation method. The first application of the lander suggests the need for methodological improvements both of engineering character and in chemical-analytical support.
Starting Page	384
Ending Page	393
Page Count	10
File Format	PDF
ISSN	00978078
Journal	Water Resources
Volume Number	37
Issue Number	3
e-ISSN	1608344X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2010-05-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Black Sea bottom sediments silt water water-bed interface Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Hydrogeology
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology

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