(Table 1) Geochemical composition of surface waters obtained aboard the R/V Rift along the Volga-Caspian canal, supplement to: Vinogradova, E L; Makkaveev, Peter; Melnikova, Z G; Nalbandov, Yuri; Stunzhas, Pavel A; Khlebopashev, P V (2011): On the transformation of the chemical composition of the Volga River discharge waters at the Caspian shallows. Oceanology, 51(5), 796-803


The Volga River discharge consists of the waters transferred by fast currents through channels and the waters which are passing through the shallow areas of the delta overgrown by cane. Using the hydrochemical data, it is possible to track distribution of the waters modified by 'biofilters' of macrophytes in the delta shallows starting from the external edge of the delta. The main distinctive features of these waters are the high content of dissolved oxygen, the abnormally high values of the pH, and the low content of dissolved inorganic carbon (both total and as CO2). These waters extend in the shape of 1 to 3-km-wide strips at a distance of 20-40 km from the outer border of the delta. The analysis of the data obtained during the expeditions run by the Institute of Oceanology of the Russian Academy of Sciences in 2003-2009, along with archived and published data, show that such 'modified' waters occur almost constantly along the outer edge of the Volga River delta.

DOI https://doi.org/10.1594/PANGAEA.793248
Related Identifier https://doi.org/10.1134/S0001437011050213
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.793248
Creator Vinogradova, E L; Makkaveev, Peter; Melnikova, Z G; Nalbandov, Yuri; Stunzhas, Pavel A; Khlebopashev, P V
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2011
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Size 100 data points
Discipline Earth System Research
Spatial Coverage (47.690W, 44.986S, 47.723E, 45.976N); Caspian Sea
Temporal Coverage Begin 2006-06-20T00:00:00Z
Temporal Coverage End 2008-02-02T00:00:00Z