Coastal cryogenic processes and cabonate balance of the coastal waters of eastern Arctic seas in the light of a changing climate.

Razumov, Sergey O. (2003) Coastal cryogenic processes and cabonate balance of the coastal waters of eastern Arctic seas in the light of a changing climate. In: Permafrost: Proceedings of the 8th International Conference on Permafrost, 21-25 July 2003, Zurich, Switzerland. ; 2 , ed. by Phillips, Marcia, Springman, Sarah M. and Arenson, Lukas U.. Balkema, Lisse, The Netherlands, pp. 935-940. ISBN 90-5809-585-1 ; 90-5809-582-7

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Abstract

An observed increase in alkalinity of the East Siberian Sea during the last quarter of the XX century is the result of CO2 absorption from the atmosphere, a more intense transport of organic substances into the water due to more active erosion of ice-rich coasts related to climate warming. Destructive coastal cryogenic processes disturb the carbonate balance causing sharp rises in a partial pressure of CO2 up to 8x10-4 in inshore waters and violations of the regular relative proportions of the alkali reserve and chlorine content. However, during summer seasons, a dominating partial pressure of CO2 is much lower in waters than in the atmosphere and varies from 0.83x10-4 to 1.89x10-4 depending on physical and chemical conditions. The current climate changes have not yet affected a potential ability of the sea to absorb CO2 from the atmosphere. On the other hand, a more active erosion of the ice-rich coasts due to climate warming reduces the ability of the sea to absorb CO2, especially in coastal, cryogenically active sections of the water area.

Document Type: Book chapter
Keywords: Arctic; Siberian Seas; Coastal erosion; Carbon cycle; CO2
Open Access Journal?: Yes
Related URLs:
Projects: Laptev Sea System, Permafrost
Date Deposited: 10 Mar 2015 12:07
Last Modified: 16 Mar 2015 08:57
URI: http://oceanrep.geomar.de/id/eprint/27977

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