A new global groundwater model and the impacts of sea-level rise on coastal fresh groundwater
We have two new exciting publications to show.
Paper 1:GLOBGM v1.0: a parallel implementation of a 30 arcsec PCR-GLOBWB-MODFLOW global-scale groundwater model
Co-authors: Gualbert Oude Essink Edwin Sutanudjaja Hai Xiang Lin Marc BierkensSee the paper at: https://lnkd.in/eGZeq5i8A few words about the technology that Jarno applied:
The underlying model code (MODFLOW 6) is changed in such a way that it runs efficiently in parallel on multiple processors of a computer cluster. Unstructured grids are used to minimize the number of computational cells and associated runtime and storage. Also, parallel data processing is applied, which is required to handle the many terabytes of input and output data. This way one is able to run 60 years over night with as little computational resources as possible and makes the use of this model feasible for users that do not have access to very large computers.The development of this model combines the strength of Deltares in developing modelling tools with Utrecht University‘s global modelling expertise and global data sets.
Together with Marc Bierkens and Gualbert Oude Essink we studied the effects of sea level rise on fresh coastal groundwater resources worldwide. The projections in our newest paper indicate that, under severe sea level rise scenarios, more than 60 million individuals may lose over 5% of their freshwater resources by 2100, escalating to 120 million by 2300.
To protect coastal communities against this threat, water management and collaborations between fields working on environmental issues will be essential. If you would like to talk about our research or collaborate, please send a message!
For more details please don’t hesitate to dive into the full study at https://lnkd.in/e_CGBE32 or read the press release at https://lnkd.in/e6qj7Ehs.