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Spatial characterization of the Baltic sea drainage basin and its unmonitored
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology.
2006 (English)In: Ambio, ISSN 0044-7447, Vol. 35, no 5, 214-9 p.Article in journal (Refereed) Published
Abstract [en]

We present an updated, harmonized hydrologic base map of the entire Baltic Sea Drainage Basin (BSDB), including 634 subdrainage basins. The updated map has a level of detail approximately 5 to 10 times higher than the current standard and includes various spatial-aggregation possibilities of relevance for water management. All 634 subdrainage basins and their various spatial aggregations are characterized in terms of population, land cover, drainage density, and slope. We identify, quantify, and characterize, in particular, drainage basins that are unmonitored with regard to the combination of water-flow and nutrient-concentration measurements needed to monitor coastal nutrient and pollutant loading. Results indicate that out of a total BSDB population of 84239000 in 2002, 24% lived in unmonitored coastal drainage basins that cover 13% of the total BSDB area. A more detailed analysis of Swedish catchments indicates that Sweden has a particularly large proportion of unmonitored coastal catchment areas (20% of the total Swedish area) with high population pressures (55% of the total Swedish population), when compared with average conditions for the whole BSDB. In general, the investigated characteristics of unmonitored coastal basins vary and differ largely from those in adjacent monitored drainage basins within the BSDB.

Place, publisher, year, edition, pages
2006. Vol. 35, no 5, 214-9 p.
Keyword [en]
Databases; Factual, Environmental Monitoring, Fresh Water/chemistry, Geography, Oceans and Seas, Seawater/chemistry, Water Movements
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-20417PubMedID: 16989505OAI: diva2:186943
Available from: 2007-03-27 Created: 2007-03-27 Last updated: 2011-01-11Bibliographically approved

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