Information system "BW_Abfluss": regionalisation of flood, mean and low flow parameters

摘要

On behalf of and in close collaboration with the institution of environment,measurements and conservation of the federal state of Baden-Württemberg(Landesanstalt für Umwelt, Messungen und NaturschutzBaden-Württemberg/LUBW/ see http://www.lubw.baden-wuerttemberg.de/) an innovative regionnalisationconcept has been developed. This concept allows the supply of flood, mean orlow flow parameters for 10 790 sites in Baden-Württemberg and anevaluation of the predicted impact of climate change on the flood situation.The extensive data basis for this regionalisation concept with numerousinput parameters and varied result reporting made it necessary to select anappropriate database structure.New software was developed to help with the calculations, notably for:– upgrading the official areal water system register (Gew?sserkundliches Fl?chenverzeichnis/GKFV)– proofing tools to maintain consistency– automatic parameter derivation with the software ESRI? ArcInfo.The results were published in electronic form and included a stand-alonegeo-information software for easy and fast retrieval of data and results.The objective of this article is to describe the implementation of these newconcepts for coupling Geographic Information System (GIS) and database needsto reach the identified requirements.