PUB 2012: Theme 6

PUB SYMPOSIUM 2012


Theme 6: New Approaches to Modelling - Wednesday, October 24, 2012


Convener: Hubert Savenije ([email protected])
Co-Conveners: Fabrizio Fenicia, Martyn Clark ([email protected]; [email protected])

Environmental modelling is confronted with the demand for ever more realistic representation of natural processes. There is a need to understand and describe the complexity of large systems, including the interactions and feedbacks between different biogeochemical cycles and the impact of human activities. In addition, there is the requirement to exploit new sources of data, and quantify their contribution to processes understanding. On the other hand, the ambition to make predictions in ungauged basins (PUB) stresses the need to develop models that minimize data demand. This requires models that make better use of easily observable quantities, such as globally available remote sensing data (e.g. topography, soil moisture dynamics). As a way to cope with data scarcity, it becomes important to take advantage of independent knowledge, exploiting available understanding on the correspondence between the structure of a system and its functional response, or incorporating other physical constraints. For example, a 'new generation of models' has been envisaged that may reduce data demand by incorporating organizing principles (e.g. minimum energy expenditure and maximum entropy production). The lack of understanding of catchment scale processes emphasizes the need for improving our ability to implement and test alternative model hypotheses. There is a need for toolboxes that facilitate both model development and diagnostics, allowing for a more objective comparison of alternative model structures and for analysing the behaviour of hydrological systems and their components. The aim of this session is to bring together new advances in the field of environmental modelling, with particular reference to the specific challenges of PUB.

Oral Programme (15 minute talks)

Time Speaker Title
13:00-13:15 Keith Beven REW Closure: what should it look like? (invited)
13:15-13:30 Sarah Dunn Reconciling questions with the need for answers (invited)
13:30-13:45 Vazken Andreassian On reconciling the one-size-fits-all and the tailor-made modelling philosophies in hydrology (invited)
13:45-14:00 Martyn Clark A computational framework to advance hydrometeorological prediction capabilities in cold regions
14:00-14:15 Eva Mockler A variable structure catchment model for investigating hydrological pathways with local knowledge
14:15-14:30 Fabrizio Fenicia A synthesis of experimental and modelling approaches to characterize catchment behaviour
14:30-15:00 Discussion and Future Directions

15:00-15:30 Coffee, Tea & Posters
15:30-15:45 Jim Kirchner Spectral signatures of water quality from H+ to U: implications for trend analysis and change detection on timescales from days to decades (invited)
15:45-16:00 Markus Hrachowitz Temporal dynamics in water age distributions and their relation to catchment wetness: what can be learned from flux tracking? (invited)
16:00-16:15 Salvatore Grimaldi An empirical tool for loss estimation in fully ungauged basins based on a combined use of Green-Ampt model and Curve Number method
16:15-16:30 Ezio Todini Can lumped rainfall-runoff models be extended to ungauged catchments on physical grounds?
16:30-16:45 Brian McGlynn Moving from field observations of catchment storage and hydrologic connectivity to new modelling conceptualizations (invited)
16:45-17:00 Luis Samaniego Robust predictions of water fluxes on large scales (invited)
17:00-17:30 Discussion and Future Directions

Poster Programme

Author Title
Oliver Gronz Derivation of mesoscale water balance model parameters from runoff process maps: consistent scaling of runoff specific parameter sets
Aytac Guven Estimation of peak flood discharges at ungauged sites across Turkey
Conrad Jackisch Disentangle structured soil domain and fluid properties and dynamics - a lagrangian representation of water movement in structured soils
Yi Liu Effects of vegetation changes on evapotranspiration in semi-arid region
Timothee Michon Redundant information in the rainfall-runoff relationship
Thomas Skaugen Reducing the number of calibration parameters in rainfall-runoff models
Prashant Srivastava Assessment of SMOS satellite derived soil moisture for soil moisture deficit estimation
Ekkamol Vannametee Hortonian runoff modeling with Representative Elementary Watershed approach: identifying and testing the closure relation with watershed characteristics
Demelah Wondimagegnehu Evaluation of climate change impact on Blue Nile basin cascade reservoir operation
Zongxue Xu Estimation of blue and green water resources in the Wei river basin, China

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