Document Detail


Spatial characterization of the Baltic sea drainage basin and its unmonitored catchments.
MedLine Citation:
PMID:  16989505     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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 84 239 000 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.
Authors:
Fredrik Hannerz; Georgia Destouni
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Ambio     Volume:  35     ISSN:  0044-7447     ISO Abbreviation:  Ambio     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-09-22     Completed Date:  2006-12-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0364220     Medline TA:  Ambio     Country:  Sweden    
Other Details:
Languages:  eng     Pagination:  214-9     Citation Subset:  IM    
Affiliation:
Department of Physical Geography and Quaternary Geology, Stockholm University, Sweden. fredrik.hannerz@natgeo.su.se
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MeSH Terms
Descriptor/Qualifier:
Databases, Factual
Environmental Monitoring
Fresh Water / chemistry
Geography
Oceans and Seas
Seawater* / chemistry
Water Movements*

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