Vienna Catchment Science Symposium 2025

Thema: Hydrological Scaling Revisited

12^th Symposium | 3^rd May, 2025

Title image and group picture of the Vienna Catchment Science Symposium

Hydrological observations and process studies are usually conducted at small spatial scales, while water management decisions, and the models that support them, are needed at larger, landscape scales.

The methodological challenge of bridging this scale gap has attracted a lot of research in the 1980s and 1990s, but has received less attention in recent years, even though the issue persists.

The aim of this symposium is to explore the conceptual foundations of the topic in light of recent advances in measurement and modelling approaches, and to identify potential directions for future research on addressing the scaling problem.

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Programme

Time	Sessions	Location
08:30	Tea, coffee, pastries and greetings	Prechtlsaal
08:45	Welcome and Introduction Günter Blöschl, TU Wien, Austria \| University of Bologna, Italy	Prechtlsaal
09:00	Hydrological scaling: Taking stock and looking ahead Günter Blöschl, TU Wien, Austria \| University of Bologna, Italy	Prechtlsaal
10:10	Tea and coffee	Prechtlsaal
10:45	Structure and organization as scaffolds for upscaling Sally Thompson, University of Western Australia	Prechtlsaal
11:55	Short break
12:00	Novel scaling approaches in physically based models Harrie-Jan Hendricks Franssen, Forschungszentrum Jülich, Germany	Prechtlsaal
13:10	Lunch	Prechtlsaal
14:15	Small group discussion sessions Group 1: Towards a general scaling framework of rainfall-runoff processes Aim: to brainstorm what universal conceptualisations could contribute to a scaling framework of model equations and parameters that link local, hillslope and catchment scales. Moderator: NN	Prechtlsaal
	Group 2: Framing the testing of scaling relationships Aim: to brainstorm the methods (data, models, frameworks) required to explore whether hydrological scaling relationships are suitable for transferring information across spatial scales. Moderator: NN	Seminar room AD0306 (3^rd floor)
16:00	Tea and Coffee	Prechtlsaal
16:30	Plenary: Exchange of group findings	Prechtlsaal
17:30	Evening drinks reception followed by dinner	Prechtlsaal

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Vienna Catchment Science Symposium 2025

Thema: Hydrological Scaling Revisited

12th Symposium | 3rd May, 2025

Programme

12^th Symposium | 3^rd May, 2025