Eva Skarbøvik
Senior Research Scientist
Biography
Education
Experience and competence:
- Water quality monitoring according to the EU Water Framework Directive
- Environmental measures in catchments
- Integrated water resources management
- Erosion and transport processes in rivers
- Effects of climate change on water courses
- Environmental effects of hydropower development (hydrology, water chemistry, sediment loads).
Authors
Michelle Devlin Theo C. Prins Lisette Enserink Wera Leujak Birgit Heyden Philip Axe Hans Ruiter Anouk Blauw Eileen Bresnan Kate Collingridge David Devreker Liam Fernand Francisco Gomez Jakobsen Carolyn Graves Alain Lefebvre Herman-J. Lenhart Stiig Markager Marta Nogueira Garvan O’Donnell Hjalte Parner Eva Skarbøvik Morten D. Skogen Lars Sonesten Sonja M. Van Leeuwen Robert Wilkes Eleanor Dening Alejandro Iglesias-CamposAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Eva Skarbøvik Sofie Gyritia Madsen van't Veen Emma E. Lannergård Hannah Tabea Wenng Marc Stutter Magdalena Bieroza Kevin Atcheson Philip Jordan Jens Fölster Per-Erik Mellander Brian Kronvang Hannu Marttila Øyvind Kaste Ahti Lepistö Maria KämäriAbstract
Climate change in combination with land use alterations may lead to significant changes in soil erosion and sediment fluxes in streams. Optical turbidity sensors can monitor with high frequency and can be used as a proxy for suspended sediment concentration (SSC) provided there is an acceptable calibration curve for turbidity measured by sensors and SSC from water samples. This study used such calibration data from 31 streams in 11 different research projects or monitoring programmes in six Northern European countries. The aim was to find patterns in the turbidity-SSC correlations based on stream characteristics such as mean and maximum turbidity and SSC, catchment area, land use, hydrology, soil type, topography, and the number and representativeness of the data that are used for the calibration. There were large variations, but the best correlations between turbidity and SSC were found in streams with a mean and maximum SSC of >30–200 mg/l, and a mean and maximum turbidity above 60–200 NTU/FNU, respectively. Streams draining agricultural areas with fine-grained soils had better correlations than forested streams draining more coarse-grained soils. However, the study also revealed considerable differences in methodological approaches, including analytical methods to determine SSC, water sampling strategies, quality control procedures, and the use of sensors based on different measuring principles. Relatively few national monitoring programmes in the six countries involved in the study included optical turbidity sensors, which may partly explain this lack of methodological harmonisation. Given the risk of future changes in soil erosion and sediment fluxes, increased harmonisation is highly recommended, so that turbidity data from optical sensors can be better evaluated and intercalibrated across streams in comparable geographical regions.
Division of Environment and Natural Resources
Riverine Inputs and Direct Discharges - RID
The Comprehensive Riverine Inputs and Direct Discharges (RID) programme aims to monitor and assess all inputs and discharges of selected contaminants to the OSPAR maritime area and its regions that are carried via rivers into tidal waters, or are discharged directly into the sea, for example through sewage pipelines or activities like aquaculture inputting substances directly.
Division of Environment and Natural Resources
NORDBALT ECOSAFE: Nitrogen and phosphorus load reduction approach within safe ecological boundaries for the Nordic Baltic region
About the project
Division of Environment and Natural Resources
OPTAIN: Optimal strategies to retain and re-use water and nutrients in small agricultural catchments
OPTAIN proposes a social and scientific journey toward the increasing and better understanding of the multiple benefits of Natural/Small Water Retention Measures (NSWRM). The Norwegian case study area, Kråkstadelva catchment, is located within the Hobølelva watershed 30 km S-SE of Oslo.
Division of Food Production and Society
Agricultural mitigation measures and the value of water quality improvements
Agriculture is one of the main sources of water pollution in Norway, and an important contributor to GHG emissions.