Funded by the European Space Agency s (ESA) Strategic Initiative and run within the Data User Element programme The TIGER Water Observation Information System
AGENDA Objectives / Background The Water Observation and Information System - WOIS WOIS Products Project Implementation One-Stop-Water Observation Shop 2
Objectives / Background OBJECTIVES ESA launched TIGER-NET as part of the TIGER initiative to develop and demonstrate a African, user-driven WOIS to exploit the observations of current and future EO satellite systems Specifications and development in direct collaboration with African Water authorities corresponding to information needs for Integrated Water Resource Management (IWRM) Enable more comprehensive observational capacity through generation of multi-source integration platform 3
Objectives / Background AIMS Development of Water Observation and Information System (WOIS) for monitoring, assessing and inventorying water resources in a cost-effective manner by satellite observation, with focus on operational Sentinel data. Implementation, capacity building and training of African water authorities to fully exploit the observation capacity offered. 4
CHAMPION USER ORGANIZATIONS 1 st project Cycle (2012-13) Objectives / Background Nile Basin Initiative Lake Chad Basin Commission Volta Basin Authority Department of Water Affairs, South Africa Department of Water Affairs, Namibia 2nd project Cycle (2013-15) Existing cycle 1 Users Department of Water Affairs, Zambia METTELSAT, DRC* Zambezi Watercourse Commission (ZAMCOM)* 5
THE APPROACH Objectives / Background Intensive user consolidation in terms of Analysis of existing Capacities, Application/Operational Use and specific System Requirements Iterative Implementation Process: Definition > Testing > Validation > Selection > Development > Installation > Training > Demonstration Productions & Validation > Training > Adaption for operational usage > Expert Training x 2 (Apr.12-Mar.15) 6
Introduction / Background USER SYSTEM REQUIREMENTS Cost and license free Open Source Easy transferable Easy to operate Capable of retrieving, storing and processing EO satellite data as well as integrate in-situ data producing EO based water related information products integrating hydrologcial modeling functions supporting decisions based on full GIS framework mapping and reporting functionality integrating and linking to existing user systems scaling up for future applications and demands 7
Introduction / Background USER APPLICATION REQUIREMENTS Earth Observation Capacity to support/enable following applications: High to medium land cover, change and degradation mapping (incl. vegetation indices) Water body mapping (small/large, shoreline changes, wetlands) Water quality monitoring (lake surface temperature, chlorophyll and sediment load) Hydrological monitoring (precipitation, evapotranspiration, soil moisture, water level) Hydrological modelling (scenario analysis and operational forecasting) Flood monitoring, historical and vulnerability assessment Erosion potential mapping Urban sanitation planning support GIS Mapping basedata collection with read-to-map templates Product Scales 8
USER REQUIREMENT End-to-end capacity Eg. Flood Forecasting, Monitoring and Assessment Introduction / Background Provide operational capacity to forecast and monitor floods, perform flood vulnerability assessments and establish information / summary reports (Map and Tabular) for Flood Bulletins and Risk Management. Base map data Operational Precipitation and Soil Moisture Satellite Data Operational Hydrological Model Operational Radar Satellite based Flood Mapping High resolution Land Cover and Vulnerability Mapping Monitoring/Reporting/Management/Intervention 9
Introduction / Background USER REQUIREMENT End-to-end capacity Eg.Basin Characterization Provide operational capacity to establish water related information / summary reports (Map and Tabular) per sub-watershed for IWRM. Base map data Hydrological network Land cover, seasonal and longterm map of changes Drought condition and water stress anomaly... other operational EO products (precipitation, etc.) Monitoring/Reporting/Management/Intervention 10
AGENDA Objectives / Background The Water Observation and Information System 11
Water Observation and Information System WOIS Architecture System Design corresponding to user requirements Multi-datasources and capacities require dedicated softwares for dedicated tasks The Solution Unite all relevant open source software packages Easy to modify Free distribution More functionality Better performance Easy to transfer 12
Water Observation and Information System WOIS Architecture System Design corresponding to user requirements Multi-datasources and capacities requires dedicated softwares for dedicated tasks The Solution Unite all relevant open source software packages Easy to modify Free distribution More functionality Better performance Easy to transfer WOIS 13
Water Observation and Information System Comprehensive platform Extensive geoprocessing framework +300 functions (raster and vector) Framework for seamlessly incorporating new algorithms and models Can be integrated in existing IT infrastructures WOIS 14
Water Observation and Information System WOIS Development Status Library of 42 customized workflows for importing, processing and analyzing optical and radar EO data in support of water management Step-by-step guidance for the end-to-end processing of the product portfolio and other relevant EO processing/gis tasks Automated retrieval and processing of EO data needed for of user requested information products Each tested and validated for a number of regions 15
AGENDA Introduction / Background Water Observation and Information System WOIS Products 16
Water quality and water surface temperature WOIS Products Water quality information Water surface temperature
Assessment of land degradation processes Land degradation hot-spots WOIS Products
WOIS Products Full basin mapping of the state and change in land cover/ land use, high resolution for regions Land Cover Change Monitoring in km² per class Seasonal Vegetation Dynamics Analysis
WOIS Products Water bodies mapping Lake surface extent mapping Area statistics Small Water Body (SWB) mapping SWB ID AREA PERIMETER 1 21171.4174 904.002332 2 183454.388 2946.96615 3 294551.767 3484.08552 Long-term and seasonal variations of wetlands Seasonal change analysis Class Area [km²] Decrease of small water bodies 0.49 Constant small water bodies 4.16 Increase of small water bodies 2.93 Localization of SWBs SWB ID XCOORD YCOORD 1-3.369437 11.990526 2-3.417772 11.98972 3-3.416978 11.972579 Seasonal change 2007 Class Area [km²] Long-term change 2007-2008 Class Area [km²] Open water 4077.56 Flooded vegetation -13768.08 Open water 4870.10 Flooded vegetation -11605.79
WOIS Products Flood monitoring Lake Tana, Ethiopia Fogera and Dembia floodplains 18th August 2013 Dynamic Flood Mapping (RADARSAT-2) RADARSAT-2 backscatter Flood map Historical Flood Mapping (Envisat, ASAR WS) Sudan Khartum city surroundings 20th August 2006
WOIS Products Hydrological characterisation Evapotranspiration Soil Moisture & derived Indicators Lake Water Levels Rainfall Zonal statistics
WOIS Products Hydrological modelling Scenario (eg.dam construction) Simulations Historic, Real-Time and Forecast Water Discharge
WOIS Products Erosion Potential Indicator
WOIS Products Water supply and sanitation support Very High Resolution Planning Basemap City Block Water Demand Modelling
AGENDA Introduction / Background Water Observation and Information System WOIS Products Project Implementation 26
Project Implementation KEY SERVICE PROVIDERS GeoVille Information Systems GmbH, Austria (PRIME) DHI Geographic Resource Analysis & Science A/S, (Partner) Support Institute of Photogrammetry & Remote Sensing, Vienna University of Technology (TU Vienna), Austria Department of International Health (ISIM), University of Copenhagen, Denmark Dept. of Environmental Engineering, (DTU ENV) Technical University of Denmark, Denmark 27
Project Implementation USER FEEDBACK First year of system developments, installations, trainings and demonstrations concluded Performance, stability and user friendliness of the prototype system have been acknowledged by all users The WOIS is a good system since it combines various components all arranged in a common interface - NBI Workflows are clear and easy steps to follow - NBI The WOIS has very high applicability and impact for IWRM capacity foreseen - LCBC
OUTLOOK Project Implementation Software Updates with the latest components (eg.qgis v2.0) Adaptation of processing chains for full support of Sentinel data Increase degree of automatization and efficiency Adaptations in response to new and current user requirements Capacity Building and Training (72 days 2014) Fund raising support to reach sustainability Coordination with existing initiatives and roll-out to other countries and regions in Africa 29
Further information Project website available under http://www.tiger-net.org TIGER-NET Water Portal as universal access point for more detailed information on the WOIS demonstration cases with the African Water authorities