Title
Strategic monitoring to account for rapid variations in the nitrate concentration of groundwater and surface water
Author
van Geer, F.
Rozemeijer, J.
van der Velde, Y.
Broers, H.P.
de Rooij, G.
Publication year
2011
Abstract
As part of two PhD projects, we installed ion-selective electrodes and passive samplers for monitoring nitrate concentrations in a 7 km 2 catchment and compared the results to grab samples. We also monitored nitrate concentrations at the catchment outlet. We tested the effectiveness of these monitoring approaches to estimate the long-term pattern in concentrations and loads at the catchment outlet. In addition, we built a regression model to predict the short-term variations in nitrate concentration. We used commonly available measurements of precipitation, discharge and groundwater head as explanatory variables. In this paper we present a comparison of different approaches to monitoring, and we discuss the potential of the ion-selective electrodes and passive samplers for practical nitrate monitoring. Copyright © 2011 IAHS Press.
Subject
Earth & Environment
GM - Geomodelling
EELS - Earth, Environmental and Life Sciences
Geological Survey Netherlands
Geosciences
Energy / Geological Survey Netherlands
Catchment hydrology
Groundwater protection
Ion-selective electrodes
Nitrate monitoring strategies
Nutrient leaching
Nutrient loads
Passive sampling
Water quality
To reference this document use:
http://resolver.tudelft.nl/uuid:bf38922e-8374-435f-8cdd-a699529de0ac
TNO identifier
460479
ISBN
01447815
Source
Symposium H01 on Conceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems, Held During the 25th General Assembly of the International Union of Geodesy and Geophysics, IUGG 2011, 28 June 2011 through 7 July 2011, Melbourne, VIC, 345, 194-199
Series
IAHS-AISH Publication
Document type
conference paper