Products and Services of WMO Commission for Hydrology (CHy)

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Products and Services of WMO Commission for
Hydrology (CHy)

• Meteorological Services for Improved Humanitarian
  Planning and Response
• WMO Headquarters, Geneva, Switzerland, 31 August
  02 September 2010

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Products and Services

• WMO COMMISION FOR HYDROLOGY
• The Commission for Hydrology (CHy) shapes the
  water related activities of the WMO and addresses
  issues related to the basic hydrological
  observation network, water resources assessment,
  flood forecasting and management, adaptability to
  climate variability and change and promotes
  exchange of technology and capacity building. In
  particular the outcomes of its deliberations
  provide guidance to WMO Member countries and WMO
  Secretariat for the implementation of the
  Hydrology and Water Resources Programme of WMO.
• Areas of activity include integrated hydrological
  networks, hydrological forecasting systems,
  hydrological aspects of natural disasters and
  environmental issues, assessment of water use,
  latest advances in hydrological technology and
  practical implementation of IWRM principles with
  particular attention to integrated flood
  management. This information is incorporated into
  technical standards, reports or guidelines that
  can be used by NHSs in their work.
• NHSs National Hydrological Services
  (hydrological agencies)

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• WMO/CHy
• Overall technical support to hydrological
  agencies value adding
• Capacity building
• Cooperation between meteorological and
  hydrological services
• Transboundary cooperation
• Scientific research
• Standardization
• Projects and programmes

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• WHYCOS World Hydrological Cycle Observation
  System

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• WMO FLOOD FORECASTING INITIATIVE

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• FLASH FLOOD GUIDANCE SYSTEM

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• HYDROLOGICAL FORECASTING AND PREDICTION
• MANUAL ON FLOOD FORECASTING
• (MANUAL ON LOW FLOWS)
• ADVICE AND SUPPORT TO FFGS INITIATIVES
• ADVISE ON AND MONITOR DEVELOPMENT OF GLOBAL FLOOD
  ALERT SYSTEM
• USE OF NUMERICAL WEATHER PREDICTION (NWP) FOR
  FLOOD FORECASTING
• GUIDANCE MATERIAL ON SEASONAL FLOW FORECASTING
• INTERCOMPARISON OF OPEARTIONAL FLOOD FORECASTING
  SYSTEMS
• GUIDANCE AND ADVICE ON HYDROLOGCIAL RISK
  MANAGEMENT

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• Role of hydrological agencies (like National
  Hydrological Services) in disaster management
• Related to hydrological extremes
• Floods
• (Droughts)
• Advisory services to (national) disaster
  management units
• Early warning/Forecasting
• Impact monitoring
• Long-term planning

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Improved Humanitarian Planning and ResponseCHy
Products and Services

• Role of hydrological agencies (like National
  Hydrological Services) in disaster management
• Related to hydrological extremes
• Floods
• (Droughts)
• Advisory services to (national) disaster
  management units
• Early warning/Forecasting
• Impact monitoring
• Long-term planning

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Improved Humanitarian Planning and ResponseCHy
Products and Services

• Flood forecasting model - inputs
• at any size of complexity (up to computerized
  Decision Support Systems)
• Most recent upstream riverflow conditions
• Most recent catchment rainfall information
• Present catchment conditions (soil saturation)
• Predicted weather development (rainfall)
• Hydrological catchment model (losses, time lag)
• River channel routing model (attenuation, time
  lag)
• Floodmapping for risk areas
• Historic data records for calibration

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• REPUBLIC OF ZAMBIA
• MINISTRY OF COMMUNICATION AND TRANSPORT
• ZAMBIA METEOROLOGICAL DEPARTMENT
• WEATHER MONITOR
•  
• 7 DAYS WEATHER FORECAST 19TH TO 25TH FEBRUARY
  2010
•  
• GENERAL SITUATION
• ITCZ is still oscillating about Central and
  Southern parts of Zambia.
•  
• FORECAST FROM 19TH TO 25TH FEBRUARY 2010
•  

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• MINISTÉRIO DAS TELECOMUNICAÇÕES E TECNOLOGIA DE
  INFORMAÇÃO
• Instituto Nacional de Meteorologia-INAMET
• AVISO DE CHUVAS
•  
• Elaborado às 10 00 horas (TL) do dia 11 de
  Abril de 2010
• Um sistema de baixa presao bem acentuado
  localizado na parte Leste do pais ,vai
  influenciar o estado do tempo nas provincias do
  Uige,Malanje, Lunda Norte,Lunda Sul e Moxico nas
  proximas 48 horas.
• Assim, o INAMET, prevê a partir de hoje dia 11
  de Abril de 2010, ocorrência de chuvas fortes
  acompanhadas ou não de trovoadas nas provincias
  do Uige,Malanje, Lunda Norte,Lunda Sul e Moxico
• A quantidade de precipitação prevista poderá ser
  superior a 50 milimetros em 24 horas .
•  
•  O Director Geral Adjunto Para Area Tecnica
•  

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• Namibia daily flood bulletin 01 March 2010
• The Zambezi River maintains its steady rise in
  Katima Mulilo. Friday afternoon, ZRA forwarded
  the upstream readings, confirming the
• arrival of a high flood in the Zambezi River at
  Chavuma near the Angola border. Fridays reading
  was 8.81 m (on 26 Feb, up from
• 7.71 m on 23 Feb). See attached graphs. It is
  possible to make the following comparison
• 2007 maximum at Chavuma 9.04 m
• maximum at Lukulu 6.56 m
• maximum at Katima Mulilo 7.23 m
• 2008 maximum at Chavuma 7.53 m
• maximum at Lukulu 5.82 m
• maximum at Katima Mulilo 5.88 m
• 2009 maximum at Chavuma 9.71 m
• maximum at Lukulu 6.89 m
• maximum at Katima Mulilo 7.85 m
• 2010 Friday at Chavuma 8.81 m
• Thursday at Lukulu 6.00 m
• today at Katima Mulilo 4.92 m
• The flow time of floods from Chavuma to Lukulu is
  a few days and then /- two more weeks to Katima
  Mulilo. It depends on rains and
• flow conditions in the intermediate areas what
  magnitude of flood will ultimately reach Katima
  Mulilo, and it is also not known how
• much further the flood will still rise in
  Chavuma. For the time being, the heavy rains have
  moved out of the area and no new heavy

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• Namibia daily flood bulletin 03 March 2010
• There have again been heavy rains in parts of the
  Zambezi
• catchment. See attached NASA map. The waterlevels
  at
• Chavuma started rising again. See attached graph.
  Our
• forecast remains that the Katima Mulilo
  waterlevels are
• heading for 7 m by mid-March 2010. For
  perspective, the
• flood would be
• similar to 2007
• higher than 2008
• lower than 2009
• But much will depend on the rains and the
  catchment
• response in the coming weeks.

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• Impact monitoring
• Overtopping of banks
• Flow channels
• Disruption of infrastructure
• Access to services
• Areas affected
• People affected
• Remote sensing
• Initiate space charter activations

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• Long-term planning
• Floodmapping
• hazard/risk
• Exposure/vulnerability
• Seasonal and monthly forecasts
• Climate change impacts

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