From 16-18 October 2019, as part of the "EGU Leonardo Conference Series on Earth's Hydrological Cycle", the Luxembourg Institute of Science and Technology (LIST), in partnership with the University of Luxembourg and the Karlsruhe Institute of Technology (KIT), will organize the conference "Global change, landscape ageing and the pulse of catchments" at the Belval Innovation Campus.
A cardinal challenge in hydrological sciences is how global change is going to affect/impact the ‘pulse of catchments’. The design and implementation of any future water resources management strategy is indeed tightly bound to the challenges posed by non-stationarity. Hydrological systems are known to be subject to continuous changes. This variability eventually determines the diversity of catchments, as well as their intrinsic property of changing systems (e.g. through the transfer of energy (evaporation) and water (erosion)). While we are still struggling with the natural variability of hydrological systems, we are facing a much bigger challenge with the increasing influence of anthropogenic pressures (expressed for example through changes in climate and land use, pollution of soils and water bodies). In this context, stationarity of hydrological systems as a fundamental assumption clearly stands out. Having provided a conceptual backbone for a (rather successful) engineering-centric approach to hydrological problems (e.g. floods, droughts), this assumption does not withstand the effects of two phenomena that have recently emerged: the rapid increase of global change related impacts on hydrological systems and the increasing complexity of processes and feed-back mechanisms that are directly or indirectly related to these impacts.
It seems obvious that catchments as open geo-ecosystems will likely react to global change with ecological and morphological adaptions to climate and human induced changes. However, the kind and degree of these adaptions and their feedbacks on the catchment hydrological functioning are far from being from being obvious. This implies that hydrological projections into the future might be more than uncertain – they might be biased and thus systematically wrong. This is because all currently available model concepts rely on a stationary catchment “skeleton” represented by stationary parameterizations. As these have been trained on past datasets they represent the past transformation properties of the catchments. Inevitably, the cardinal challenge for hydrological sciences is now to provide new ways to deal with non-stationarity of hydrological systems.
During the 2019 EGU Leonardo topical conference, we intend to assess the current status quo and potential ways forward on (i) catchment evolution conceptualization, (ii) conciliation of (dynamic) catchment complexity and (static) model complexity, as well as (iii) re-connection of field research and hydrological modelling.
We plan to wire the conference around three complementary sessions:
Abstracts were only accepted though the online abstract submission system. Abstract submission is now closed.
All manuscripts must be in English and are limited to 500 words.
See the topics for which authors are invited to submit research papers and posters in the section "Topical Sessions" below.
The Conference will last 3 days with oral presentations during the day, followed by poster sessions in the late afternoon. After the poster session on the second day of the conference, we will organize a Town Hall meeting, providing a platform for open discussions on the most pressing research questions in hydrology, pending knowledge/conceptual gaps or technological limitations, as well as potential new avenues to be explored in the future. We plan to have Prof. Murugesu Sivapalan (The School of Earth, Society & Environment - Illinois), Prof. Hubert H.G. Savenije (TU Delft) and Prof, Jeff McDonnell (University of Saskatchewan) to lead the discussions during the Town Hall meeting. A summary and outlook session (presented by the session chairs), followed by a plenary discussion, will close the conference on day three.
Currently there are two ongoing Special issues in leading EGU Journals, which are well aligned with the topics of this Leonardo Conference and thus provide an ideal outlet for key contributions.
08.30 - 9.00 Welcome coffee & Registration
09.00 - 09.20 Welcome speech
09.20 - 10.00
Keynote: Changes in catchment connectivity due to climate change and anthropogenic activities: coevolution of dryland catchment structures
10.00 - 10.20
Using the stokes flow physical principles to define an appropriate scale for infiltatration modelling.
10:20 - 10:40
Using the Net Carbon Profit for optimizing vegetation properties along a precipitation gradient
10.40 - 11:00
Partitioning of seasonal precipitation into ET and discharge in Switzerland
11.00 - 11.30 Coffee break
11.30 - 12.10
Keynote: Justifiability is key - Bayesian analysis of system and model complexity
12.30 - 12.50
Digging out the memory of catchments: towards the assimilation of piezometric data into a low-flow forecasting model
12.50 - 13.10
Bortoli Da Silva Marina / Uwe Ehret
Dynamical clustering: An approach to analyze dynamical similarity and reduce redundancies in distributed hydrological modeling
13:10 - 13:30
How well can we model the diurnal cycle of turbulent heat fluxes?
13.30 - 14.30 Lunch
14:30 - 15:10
Keynote: Hydro-biogeochemical processes related to C, N and P transfer to surface water: from processes identification in headwater observatories to the assessment of their relevance at regional scale and of their long-term responses to climatic drivers
15:10 - 15:30
Revisiting the Hewlett and Hibbert hillslope drainage experiment and tracking downslope nitrate transport
15:30 - 15:50
Tracking spatial variation of water and matter fluxes from the top of the canopy to the bottom of the rooting zone
16.10 - 16.30 Coffee break
16.30 - 18.00 Townhall Meeting
08.30 - 9.00 Welcome coffee & Registration
09.00 - 09.20
Changes in hydrological characteristics and overland flow during hillslope aging for moraines in the Swiss Alps
09.20 - 09.40
Improving hydrological modeling through understanding of catchment structures under the framework of soil thickness evolution
09.40 - 10.00
Gelmini et al
Using tracers and hydrological hysteresis analysis to assess process consistency in a catchment conceptual model application
10.00 - 10.20
The ecosystem is the water manager of catchments
10.20 - 10.40 Coffee break
10:40 - 11:20
Keynote: Organizing principles in a box – The maximum power principle tested within a sandpit
11:20 - 11:40
The Isotope Hydrology of the Muskoka River Watershed, Ontario, Canada
11:40 - 12:00
Groundwater and stream interaction in a small and ordinary catchment: More mysteries than expected
12:00 - 12:20
Hydrological model sensitivity to parameters is related to climate: Is this a good or a bad thing?
12:20 - 12:40
Efficient parameter regionalization for spatially distributed hydrological models
12.40 - 14.00 Lunch
14.00 - 14.20
Knapp Julia L. A.
The whole is different from the sum of its parts: The role of hydrological connectivity and catchment conditions on the inter-event variability of concentration-discharge relationships
14.20 - 14.40
Metzger Johanna C.
From the canopy to the deeper subsurface: Tree-induced water flux bypasses
14.40 - 15.00
Testing the truncation of travel times with StorAge Selection functions using deuterium and tritium as tracers
15.00 - 15.20
Are there incommensurable state variables in catchments? On the integration of bio- and geo-aspects of a long-term catchment study at Lange Bramke (Harz)
16.00 - 18.00 Poster discussion + Coffee break
19.30 Conference dinner
08.00 - 8.30 Welcome coffee & Registration
08:30 - 09:10
Keynote: What can thermodynamics tell us about catchment function, organization, and evolution?
09.10 - 09.30
A blueprint for thermodynamically consistent box models and a test bed for thermodynamic optimality principles
09.30 - 09.50
Energy, mass and information - elements of an evolutionary concept of catchments as systems of adaptive complexity
09.50 - 10.10
Freshwater mollusks as long-term and high-resolution stream water isotope recorders
10.10 - 10.30 Coffee break
10.30 - 11.10
Keynote: Using Embedding Layers in Deep Learning Networks to Understand and Complexity, Similarity, and Nonstationarity in Rainfall/Runoff Processes
11.10 - 11.30
Harnessing big data to rethink land heterogeneity in Earth System models
11.30 - 11.50
The macroscale perspective to hydrology: does it have any value?
11.50 - 12.10
Ralf Loritz / Erwin Zehe
From catchment organization to dynamic functional similarity
12.10 - 12.30 Farewell
Download here the PDF poster list (Format : 19KB)
Venue: University of Luxembourg | Maison du Savoir - 2, avenue de l'Université | L-4365 ESCH-SUR-ALZETTE
Dates: 16-17-18 October 2019
Standard fee: 200 € VAT excl.
Student fee: 140 € VAT excl.
Gala dinner: 70 € VAT excl.