I could support you in the field of hydrology, geomorphology and fluvial geomorphology, if you have your own funding for one or two years stay in Portsmouth University.
I was looking at TWAS- CONACyT only to find out that they are only tenable in Mexico and the same goes for TWAS-UPM for Malaysia and TWAS-CNPA which is tenable in Brazil. I am sourcing for a few other funding organizations, when I get through I will inform you. thank you.