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WORLD METEOROLOGICAL ORGANIZATION Weather, Climate and Water. INTERNATIONAL WORKSHOP ON FLASH FLOOD FORECASTING OVERVIEW OF THE FLOOD-RELATED PROGRAMMES OF WMO Bruce Stewart President of CHy. CONTENT Role of WMO in Hydrology and Water Resources

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WORLD METEOROLOGICAL ORGANIZATION Weather, Climate and Water

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WORLD METEOROLOGICAL ORGANIZATION

Weather, Climate and Water

INTERNATIONAL WORKSHOP ON FLASH FLOOD FORECASTING

OVERVIEW OF THE FLOOD-RELATED PROGRAMMES OF WMO

Bruce Stewart

President of CHy


CONTENT

  • Role of WMO in Hydrology and Water Resources

  • Objectives of WMO in Hydrology and Water Resources

  • Flood-related Activities

  • Other WMO Programmes

  • Conclusions


ROLE OF WMO IN HWR

  • Safety of life and property

  • Information and knowledge in support of Integrated Water Resources Management

  • Capacity building

  • Support for knowledge based operations and policies

  • Promotion of risk management approach


OBJECTIVE OF WMO IN HWR

To apply hydrology to:

  • meet the needs for sustainable development and use of water and related resources;

  • the prevention and mitigation of water-related disasters; and

  • ensure effective environmental management at national, regional and international levels.


FOCUS OF WMO IN HWR

  • The measurement of basic hydrological elements form networks of hydrological and meteorological stations

  • The collection, processing, storage, retrieval and publication of hydrological data

  • The provision of hydrological data and related information for use in planning and operating water resources projects and monitoring the status of water resources

  • The provision of effective flood forecasting and warning services


COMPONENTS OF THE HWRP

  • Basic Systems in Hydrology

  • Forecasting and Applications in Hydrology

  • Sustainable Development of Water Resources

  • Capacity Building in Hydrology and Water Resources

  • Water-related Issues


FLOOD-RELATED ACTIVITIES

  • What do we mean by Flood-related activities?


Protective Response

Communication

Message Construction

Review after event

Feedback during event

Interpretation

Prediction

Total Flood Warning System


FLOOD RELATED-ACTIVITIES

  • Prediction

    -Measurement of rainfall

    -Measurement of river height (WHYCOS)

    -Derivation of streamflow

    -QPE and QPF

    -Hydrological Modelling


FLOOD RELATED-ACTIVITIES

  • Interpretation

    -Flood hazard mapping

    -Hydraulic modelling

    -???

  • Message construction

    -???


FLOOD RELATED-ACTIVITIES (Ctd.)

  • Communication

    -Collection systems

    -Dissemination systems

    -Web-based information

    -???

  • Protective response

    -Design rainfall/flood information

    -Awareness raising

    -???


SPECIFIC INITIATIVES

  • Standards and Practices

  • Automated rating curve derivation

  • Streamflow Gauging Manual

  • Intercomparison Project – Instruments, Transmission Systems

  • Guide to Hydrological Practices

  • WHYCOS – HYCOS


SPECIFIC INITIATIVES (Ctd.)

  • Flood Design Manual

  • PMP Manual

  • Flood Forecasting Manual

  • WMO Flood Initiative

  • International Flood Initiative

  • Global Flood Forecasting Project


GLOBAL/REGIONAL SHORT-TERM HYDROLOGICAL FORECASTING SYSTEM

RECOMMENDATIONS

  • The tools should be tested in different river basins (in particular, in an arid/semi-arid region);

  • Preference should be given to river basins that are multi-national;

  • The role of the NHSs and other stakeholders must be recognised and maintained

  • The involvement of relevant WMO Regional Association Working Groups on Hydrology should be sought; and

  • Possible river basins include: the Limpopo, Lake Victoria, a river basin in West Africa, the Mekong, Central America, the Niger and the Oka.


GLOBAL/REGIONAL SHORT-TERM HYDROLOGICAL FORECASTING SYSTEM

STEPS/STAGES

  • A compilation of the approaches (QPE, QPF, etc);

  • A study identifying in greater detail the strengths and weaknesses of the approaches;

  • A comparative testing of targeted elements of the forecast capability;

  • Development of a prototypical composite system or systems; and

  • Preparation of project packages for funding (including a needs assessment).


  • Modelling

    • Spatially distributed, event-based

    • National system - scaleable

  • Hydromet Inputs

    • Quantitative radar rain

    • NWP, QPF

  • Web Products

    • Maps and data bulletins

    • Updated hourly – daily

RECENT DIRECTIONS


Single Most Important Action?

  • Community education, engagement & awareness – participation, empowerment, ownership. People should be made aware of their personal risk

  • Improved agency coordination – national consistency/national agency, improved agency coordination framework

  • Better risk communication – incl. use of technology, radio/media accessibility


CONCLUDING REMARKS

  • WMO is doing a lot in its areas of expertise

  • Where should we target future initiatives?

  • Any flood forecasting system is only as strong as its weakest link – how do we involve all of the stakeholders?

  • Stress the need for greater collaboration between NHSs and NMSs in flood forecasting

  • Look forward to the presentations and discussions from this week to futher define and refine the HWR work plan


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