Inga Greipsland

Research Scientist

(+47) 974 10 477

Ås F20

Visiting address
Fredrik A. Dahls vei 20, 1430 Ås


The moisture status of the upper 10cm of the soil profile is a key variable for the prediction of a catchment's hydrological response to precipitation, and of pivotal importance to the estimation of trafficability. Prediction, and even mapping, of topsoil water content is complicated, not in the least because of its large spatial heterogeneity. In IRIDA, an EU/JPI project, measurements, models and weather predictions will be applied to estimate the soil moisture status at the sub-field scale in near-real time. The project is in its early stages, during which the relevant parameters will be selected that will allow for soil moisture mapping on agricultural fields at a 10 m resolution.


Climate scenarios for Norway predict an increase in temperature, a longer growing season and more precipitation in most parts of the country (Hanssen- Bauer et al., 2015). More precipitation will likely have a negative effect on water quality because of the increased fluxes of nutrients like phosphorus (P) and nitrogen (N) into rivers and lakes. (Deelstra et al, 2011). Higher water temperatures are favorable to cyanobacteria, which could grow faster and create toxic waters. Even today, Norway experiences large problems related to heavy precipitation; for instance flooding, erosion, nutrient loss and damage to infrastructure. If precipitation continues to increase, the need for more or more effective mitigation measures in agriculture would become necessary.


Norway has adopted the Water Framework directive and intends to achieve good ecological status in all water bodies by 2021. The environmental condition of Norwegian rivers and lakes are good compared to those in most other countries in Europe. A preliminary survey of the status of all Norwegian water bodies shows that around 50 % probably will meet the EU objectives/requirements for the freshwater environment, while around a quarter are at risk with regards to the requirements (Snellingen Bye et al., 2010). For the remaining water bodies, data are not available or their status is uncertain. Agriculture has been identified as the third most important factor influencing the status of Norwegian fresh water bodies.