This tutorial explains and demonstrates a scalable wetland and peatland modelling approach, implemented by the Dynamical Peatland Model Based on TOPMODEL (DYPTOP) (Stocker, Spahni, and Joos 2014). The demonstration contrasts two regions, the extent around the central Congo Basin peatland complex (Figure 1) (Dargie et al. 2017), and Switzerland (Figure 2) in Chapter 2. Chapter 3 then demonstrates the application of the DYPTOP modelling approach at the global scale.
Figure 1: Region used for demonstration around the Central Congo Basin peatland complex. The maps shows the Compound Topography Index (CTI), which measures the tendency for subsurface water flow convergence and a shallow water table depth (or flooding) based on the TOPMODEL (Beven and Kirkby 1979). CTI data is from Marthews et al. (2015).
Figure 2: Regions used for demonstration around Switzerland. The maps shows the Compound Topography Index (CTI), which measures the tendency for subsurface water flow convergence and a shallow water table depth (or flooding) based on the TOPMODEL (Beven and Kirkby 1979). CTI data is from Marthews et al. (2015).
Beven, K. J., and M. J. Kirkby. 1979. “A Physically Based, Variable Con- Tributing Area Model of Basin Hydrology.”Hydrol. Sci. J. 24 (1): 43–69. https://doi.org/DOI:10.1080/02626667909491834.
Dargie, Greta C., Simon L. Lewis, Ian T. Lawson, Edward T. A. Mitchard, Susan E. Page, Yannick E. Bocko, and Suspense A. Ifo. 2017. “Age, Extent and Carbon Storage of the Central CongoBasin Peatland Complex.”Nature 542 (7639): 86–90. https://doi.org/10.1038/nature21048.
Marthews, T. R., S. J. Dadson, B. Lehner, S. Abele, and N. Gedney. 2015. “High-Resolution Global Topographic Index Values for Use in Large-Scale Hydrological Modelling.”Hydrology and Earth System Sciences 19 (1): 91–104. https://doi.org/10.5194/hess-19-91-2015.
Stocker, B. D., R. Spahni, and F. Joos. 2014. “DYPTOP: a cost-efficient TOPMODEL implementation to simulate sub-grid spatio-temporal dynamics of global wetlands and peatlands.”Geoscientific Model Development 7 (6): 3089–3110. https://doi.org/10.5194/gmd-7-3089-2014.