This is a page about the
Fluxes from Flooded Vegetation
coordinated by Toby Marthews at UKCEH (email me if you are interested in joining the email list for this). Please see also our blog.
Schedule of meetings:
Meeting 1: 9-NOV-21. Presentation by Ross Morrison about UKCEH flux tower data.
Meeting 2: 8-DEC-21. Presentation by Toby Marthews about flooded vegetation and another by Nic Gedney about her upcoming paper.
Meeting 3: 8-FEB-22. Presentation by Noah Smith and Toby Marthews on soil supersaturation.
Meeting 4: 8-MAR-22 Presentation by Anthony Schrapffer about ORCHIDEE's new Floodplains Scheme and results from the Pantanal.
Meeting 5: 12-APR-2022. Presentation by Athanasios Paschalis about his group's current work on the Tethys-Chloris wetland model.
Meeting 6: 7-JUN-2022. Presentation on river routing/inundation modelling by Toby.
** Discussion Group closed - there will be no further meetings! **
Here are the slides I presented in September 2021 on this topic and here are the slides I presented on 12th October 2021 at our (Zoom) kick-off meeting. I am trying to work out how to address the issues on this topic listed below.
Toby Marthews, October 2021.
PS. At the moment, I have not formulated this group as a JULES Process Evaluation Group (JPEG, e.g. search for "JPEG" here). This may happen in the future, but at the moment this is deliberately not a JULES-specific discussion: we are interested in all model approaches AND non-modelling topics (e.g. theory, observations).
Flooded vegetation is not generally treated explicitly in land surface models. In the JULES code, for example, ice and lake areas on land are assumed to have zero vegetation (and rivers have no width). Routines exist within JULES for specifying irrigated area and predicting inundated area, but these areas are not dynamically linked to the vegetation tiles within the gridcell, meaning that 'flooded vegetation' does not currently exist as a concept within JULES.
People have been thinking about this for a while, e.g. Dadson et al. (2010) "Vegetated zones can and do become flooded, in proportion to their original surface cover fractions. At present we have insufficient information on the detailed biophysical response of vegetation to flooding to model this process explicitly, but we note that potential improvement for future work.". Also, Miguez-Macho & Fan (2012) had a section Evaporation From Floodwater Surface (although no mention of the flooded vegetation).
Think about these points: