Search for projects with tag "modelling"
[ID: 216] Advancing the modelling of the peatland carbon balance through assimilation of high-resolution component flux and phenology data
PI: Matthias Peichl
Our project aim is to advance a well-established peatland C cycle model by incorporating high-temporal resolution observations of i) individual net carbon dioxide (CO2) exchange component fluxes and ii) vegetation phenology. The specific objectives are: 1) To obtain novel empirical data on the individual peatland production and respiration component fluxes at high temporal resolution 2) To improve model algorithms for estimating autotrophic and heterotrophic respiration fluxes in boreal peatlands 3) To develop a dynamic vegetation model for improving simulations of peatland gross primary production and allocation to above- and belowground net primary production
PI: Shirin Karimi
Restoration of drained wetlands to more pristine conditions is considered as one of the most important strategies to avoid catastrophic effects of hydrological extremes. This includes avoiding both flooding during large precipitation events and streams from drying out during droughts. However, the science underpinning this strategy is largely missing, and in fact, the few scientific studies of pristine wetland systems in Sweden do not support the notion that wetland restoration necessarily is the best strategy to alleviate extreme weather impacts. To overcome this lack of scientific arguments and to close the gap between science and management, we will utilize a unique collection of hydrological field observations and modelling to address the question whether restored wetlands are more effective in mitigating both flooding events and low flow conditions than leaving historically drained wetlands as they are. To do this, we will take full advantage of one of the most advanced field research infrastructures, the Krycklan Catchment Study (KCS, www.slu.se/Krycklan). By combining a state-of-the-art methodology for estimating water storage and release dynamics, we will evaluate and compare the role of i) pristine wetlands without drainage, ii) historically drained wetlands carried out in the 1930s to improve forest productivity, iii) newly ditched-cleaned wetlands for forestry production and, iv) recently restored wetlands.
PI: Jana Erdbrügger
Investigating different aspects of hydrologic connectivity in the boreal landscape. The project includes field measurements as well as a modelling approach to identify, quantify and analyse key aspects of hydrologic connectivity.