Insights in nutrient sources and transport from high-frequency monitoring at the outlet pumping station of an agricultural lowland polder catchment

Joachim Rozemeijer1, Bas Van der Grift1, Hans Peter Broers2, Wilbert Berendrecht3, Leonard Oste1 and Jasper Griffioen4, (1)Deltares, Delft, Netherlands, (2)TNO Geological Survey of the Netherlands, Geomodelling, Utrecht, Netherlands, (3)Berendrecht Consultancy, Harderwijk, Netherlands, (4)TNO Geological Survey of the Netherlands, Utrecht, Netherlands