Workshop on hyper-resolution global hydrological modelling: the next step
exchange experiences thus far and learn from each otherâ€™s problems, failures, successes and solutions;
investigate possible community building: discuss in what form groups involved in large-scale hyper-resolution hydrological modelling could work together in the future. Would it be a community of models doing comparison experiments, a community striving for one community model, or one that builds model components that can be exchanged between models (e.g. in a Python framework)?;
set up a joint research program where problems/issues will be identified that concern most groups and assign a limited number of groups working on these problems together and making the results available to the community.
Day 1: Thursday 13 February
9:30-10:00Â Â Â Â Arrival, coffee and welcome
10:00-10:30Â Â Eric Wood: Vision for establishing a collaborative network on hyper resolution global land surface modeling, and goals for the workshop -Â What would the network look like? -Â Â What type of issues would we work on? -Â What do we want to achieve this year? -Â Â What do we want to achieve in the following years.
10:30-12:30Â Â Â Presentations (15 minutes including focused discussion) by groups: progress, challenges, failures, unresolved issues: groups are requested to distribute the most important sheetsÂ with m 3-4 pages, prior to the workshop.)
12:30-13:45Â Â Â Lunch
13:45-16:00Â Â Â Presentation by groups (continued)
16:00-17:30Â Â Â General discussion of the activities by the groups: identification of areas of progress and main challenges by category; areas of collaboration. To guide the discussion we already propose the following categories: 1) computational issues; 2) parameterization and scale issues;
17:30Â Â Â Â Â Â Â Â Â Â Â Â Â Â Drinks at the Basket (on Campus)
19:30Â Â Â Â Â Â Â Â Â Â Â Â Â Dinner at Restaurant Goesting (in Town)
Day 2: Friday 14 February
9:00-9:15Â Â Â Â Â Â Arrival andÂ coffee
9:15-10:00Â Â Â Â Introduction by Nathanial Chaney: Computation Challenges: Modularization and Parallelization
10:00-10:15Â Â Â Niels Drost (eScienceCenter): short presentation on AMUSE â€“ Python framework now used to couple multiphysics modules (examples from astrophysics)
10:15-12:00Â Â Â Discussion of main challenges by category: possible solutions/collaboration and subsequent actions.Â Identification of groups willing to work on these (commitments). Three break-out groups: 1) computational issues; 2) parameterization and scale issues; 3) setting up a the collaborative network.
12:00-13:30Â Â Â Lunch
13:30-15:00Â Â Â Writing up results of morningâ€™s discussion (challenges and action items) by category, and proposing structure of the research network/collaboration, modes of communication (website/wiki; AGU/EGU sessions) and development of a white paper (Contribution to EOS Transactions AGU). Timelines for action items (coming years, years to follow).
15:00-15:30Â Wrap up and closure
Detailed list of short talks
|Speaker 1||Speaker 2||Model/project||university / organisation||presentation time|
|Nathanial Chaney||Eric Wood||VIC: Talk||Princeton University||10:30-10:45|
|John T, Reager||CÃ©dric David||RAPID & CLM: Talk||University of California Center for Hydrologic Modeling||10:45-11:00|
|Vicky Bell||Grid-to-Grid (G2G) model: Talk||Centre for Ecology and Hydrology, Wallingford||11:00-11:15|
|Edwin Sutanudjaja||Marc Bierkens||PCR-GLOBWB 2.0 /eWaterCycle: Talk||dept. Physical Geography: Utrecht University||11:15-11:30|
|Rolf Hut||Nick van de Giesen||eWaterCycle: Talk||TU Delft â€“ CITG||11:30-11:45|
|Hessel Winsemius||GLOFRIS: Talk||Deltares â€“ Delft||11:45-12:00|
|Ed Sudicky||Hydrogeosphere: Talk||University of Waterloo||12:00-12:15|
|Peter Burek||Ad de Roo||Lisflood||JRC Ispra||14:00-14:15|
|Laura Condon||Reed Maxwell||CONUS Parflow: talk||Parflow: Colorado School of Mines||14:15-14:30|
|Stephan Kollet||Parflow||University of Bonn||14:30-14:45|
|Luis Samaniego||mHM: Talk||UFZ Helmholtz Centre for Environmental Research||14:45-15:00|
|Paul Houser||Hyper-resolution forcing: Talk||George Mason University||15:00-15:15|
|Martina FlÃ¶rke||WaterGap: Talk||WaterGap: University of Kassel||15:15-15:30|
|Petra DÃ¶ll||WaterGap: Talk||University of Frankfurt||15:30-15:45|
|Dave Gochis||NCAR HR regional modeling: Talk||NCAR||15:45-16:00|
List of Participants
|1||Vicky Bell||CEH, Wallingford|
|2||Marc Bierkens||PCR-GLOBWB: Utrecht University|
|3||Peter Burek||Lisflood: JRC|
|4||Nathaniel Chaney||VIC: Princeton University|
|5||Laura Condon||Parflow: Colorado School of Mines|
|6||CÃ©dric David||RAPID: University of California Center for Hydrologic Modeling|
|7||Ad de Roo||Lisflood: JRC|
|8||Petra DÃ¶ll||University of Frankfurt|
|9||Niels Drost||eScienceCenter Amsterdam|
|10||Martina FlÃ¶rke||WaterGap: University of Kassel|
|11||Dave Gochis||NCAR HR regional modeling|
|12||Paul Houser||George Mason University|
|13||Rolf Hut||TU Delft â€“ CITG|
|14||Stephan Kollet||University of Bonn|
|15||Reed Maxwell||Parflow: Colorado School of Mines|
|16||John T. Reager||CLM:University of California Center for Hydrologic Modeling|
|17||Luis Samaniego||UFZ Helmholtz Centre for Environmental Research|
|18||Ed Sudicky||Hydrogeopshere: University of Waterloo|
|19||Edwin Sutanudjaja||dept. Physical Geography: Utrecht University|
|20||Nick van der Giessen||TU Delft|
|21||Hessel Winsemius||Deltares â€“ Delft|
|22||Eric Wood||VIC: Princeton University|
- CreatingÂ an open network: Water innovation partnership on hyper-resolution modelling
With the main objective: to strive for being able simulate terrestrial hydrology and water resources at hyper-resolution at acceptable accuracy.
-Â Â Society: To be locally relevant for water resources management where needed.
-Â Â Â Equity: Equity of information about the globe.
-Â Â Science: By attempting this weÂ will be able to learn at what scales which processes matter and howÂ to transform informationÂ from one scale to another
This poses the question: is it possible to be locally relevant with globally available information?
This generates aÂ number of scienctic questions (See also Wood et al., 2012)
- Questions of scale: can we seamlessly up- and downscale our models and get consistent water balance and energy balance components?
- Can we extract the information needed, in particular human impacts, to be able to reach sufficient accuracy at the local scale?
2. The establishment ofÂ three working groups:
- WG1: Setting up a testbed for comparing different large-scale models at different resolutions.
- Global at 5 minutes (long-term goals: global at 1 km)
- Domains: CONUS, CORDEX EuropeÂ at 1 km
- Rhine + Illinois + California at 100 m
- Common datasets: provided at the finest scale possible at fixed format.
- Run the various models at decreasing resolution
- Run it with local and globally available information
- Include LIS scaling tools
- WG2: Around computational challenges, including parallel computing and model component coupling.
- Common platform to perform comparisons and analyze results: you submit your data and it automatically generate the comparison statistics
- Common framework for coupling modules: common i/o system (AMUSE, CSDMS).
- Commont tools for solving computational issues (parallelization)
- WG3: With the goal to think about delivering the information needed to achieve hyper-resolution (< 1 km) globally:
- Compile high-resolution global datasets using auxiliary information
- Devise new model concepts that areÂ replace subgrid-parameterizations with computationally frugal spatially explicit physics
- Create hyper-resolution global forcing data.
3. Organize regular meetings (EGU and AGU).
4. Writing of an opinionÂ paper.