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Peter Gijsbers, Mark Hegnauer, Judith ter Maat iEMSs 2020, session C9

Integrated systems for dynamic multi-scale environmental and earth systems modelling C9.4., 15 September 2020

BlueEarth:

an Integrated Approach from

Model Building to

Stakeholder Dialogue

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Context

Global trends

§ Increasing variability of water availability

à Less reliable sources

§ Increasing pressure on available water resources

à Higher demand of water

This requires

§ Planning at river basin scale

§ Integration of hydrological and social data & models

§ Efficient multi-stakeholder communication & collaboration

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Informed and interactive decision making

3

v Society faces social and environmental challenges

v Require integratedplanning and management processes to develop resilient strategies v Involvement of wide variety of disciplines and stakeholders

v Support with a digital environment and model analysis v Informed and interactive decision making

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What kind of decisions could be supported?

v Mitigation of drought hazard and risks: e.g. low flows and navigation

v Water management strategies: e.g. reservoir management or shifting from sprinkler to drip irrigation

v Climate change adaptation: e.g. shift from rainfed to irrigated agriculture

Hydrological history What if …? analysis Climate change scenarios Socio-economic scenarios Agricultural scenarios Land use scenarios Interventions, management actions Results

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Our experiences from the past

5

v Building models from scratch using local datasets is a slow process

v Data collection is time consuming

v Data often is of unknown quality or not available

v Consequence: planning processes cannot take full benefit of modelling effort

v Models become available late in the project

v Limits ability for trust building through collaborative modelling and stakeholder engagement v Limits time for in-depth model analysis

v Speeding up the building process can improve this situation

v Globally datasets have sufficient quality and resolution to provide data foundation v Local datasets can enrich this global data

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BlueEarth: an effort to combine

v Data centric:

v Use of reliable (global) datasets

v Supplemented with local data when available

v Engine:

v Model Building for rapid model setup: Global to local

v Computational Framework: to run, analyze and visualize model results v Open Archive: to store model inputs and results

v Co-creation:

v Web services: to provide data access

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BlueEarth

Digital Environment

7

tomcat

Deltares Open Archive

Catalogue server (meta data)

NetCDF file based data archive PI-Service tomcat WMS tomcat data Computational Framework Model Building HydroMT wflow RIBASIM

Dashboards & Data portals

W e b s e rv ic e s

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Global data sources used for land based models

• Digital Elevation Model: MERIT (Yamakazi et al. 2019) • Soil data: SoilGrids (Hengl et al.2017)

• Lakes: HydroLakes (Messager et al. 2016)

• Reservoirs: Global Reservoir and Dam database (Lehner et al. 2011)

Supplemented with local data sources

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HydroMT engine for rapid model setup

M e th o d s raster vector Models Data Workflows stats flw plots rio yaml wflow sfincs waq p y h to n C L I ini raster vector Model data hydroMT Input data config

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HydroMT result: model dataset

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Computational Framework

powered by Delft-FEWS

change, execute, analyze, archive

Workflow Management Run wflow (General Adapter) database Delft-FEWS Module Delft-FEWS Workflow

Import Preprocess Postprocess

forcing

Run RIBASIM (General Adapter)

change run analyze archive

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Computational Framework

powered by Delft-FEWS

change

v What-ifs accommodate changes to model input

v Modification of GIS-attribute values v Modification of model parameters values

v Replacement of externally prepared native data files

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Computational Framework

powered by Delft-FEWS

execute

Workflow Management Run wflow (General Adapter) database data exchange file (PI) native model data files External Module Delft-FEWS Module Delft-FEWS Workflow

Import Preprocess Postprocess

wflow RIBASIM netcdf zip netcdf log.xml xml zip PreAdapter native (tms) forcing Run RIBASIM (General Adapter) Published Interface (xml/NetCDF)

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Computational Framework

powered by Delft-FEWS

analyze

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BlueEarth Engine

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BlueEarth-Dashboards:

Co-creation for effective and interactive communication

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process facilitator stakeholders

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blueearth.deltares.org

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