SURFLAT: Measuring and modelling surface runoff in flat landscapes
Abstract
Surface runoff is widely recognized as playing an important and unique role in contaminanttransport from agricultural fields to the river system. Its quantification however is stillunderdeveloped, especially in flat areas. Because micro-topography (< 10 cm) likely is animportant controlling factor in such landscapes, accurate predictions of the occurrence andquantity of surface runoff are limited by a lack of high-quality data and/or computational power.This project will explore the applicability of both conceptual (fill-and-spill) and state-of-the-artphysically based models to estimate surface runoff at the field scale. Laser technology will providehigh resolution surface topography data and direct measurements of surface runoff will aid invalidating the hydrologic models. The goal of this research is to use the results of the field study todevelop an efficient and accurate upscaling scheme, centred around a generic parameterization ofmicro-topographic variability. This could support decision and policy making and contribute toincreasing the water quality of river systems.
- Publication:
-
EGU General Assembly Conference Abstracts
- Pub Date:
- May 2020
- DOI:
- 10.5194/egusphere-egu2020-20476
- Bibcode:
- 2020EGUGA..2220476S