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Dr. Mikaela Kruskopf, WRM Advisor

Watershed Monitoring and Evaluation (WME) component of the Tana Beles Integrated Water Resources Development Project (TBIWRMP) in Ethiopia Hydrological Baseline and monitoring programme 8 th July 2009 Bahr Dar. Dr. Mikaela Kruskopf, WRM Advisor. Soil loss  sediment load.

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Dr. Mikaela Kruskopf, WRM Advisor

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  1. Watershed Monitoring and Evaluation (WME) component of the Tana Beles Integrated Water Resources Development Project (TBIWRMP) in EthiopiaHydrological Baseline and monitoring programme8thJuly 2009Bahr Dar Dr. Mikaela Kruskopf, WRM Advisor

  2. Soil loss  sediment load Source: Abay Basin Master Plan Study

  3. Sampling and testing 2009 Existing site – Hydrology Department annual monitoring WME sites

  4. Activities in the microwatersheds • Identification of sites for sediment measurement • Installation of basic measurement stations • Village Based Monitoring System • Detailed hydrological monitoring baseline (with hydrology department staff) • In-depth studies (e.g. Runoff plot measurements, modelling, intensive sampling using automatic loggers)

  5. Sites with well defined water channel • Sites where Watershed management activities are taking place • Sites were no activities will be implemented (control) • Sites of a suitable catchment size

  6. Defining the channel cross section • Measuring current (three to four times during various water heights)

  7. Staff gauge (for water level recording)

  8. Alternative staff gauge! • Measuring water level (daily, through KWT / villager participation)

  9. Village Based Participatory Monitoring Programme • WME TA staff will: • Install rain gauges, • Install staff gauges • WME TA staff will teach one data collector from the site to: • Take readings of daily (or hourly) rainfall • Take readings of daily water level (and during floods) • Measure secchi depth and • Take water samples at high turbidity (when secchi < 1 cm) for analysis • TA staff of BDU student will: • Collect samples and data once a month • Take current measurements 3-4 times

  10. Other factors affecting the hydrology, requiring additional studies • Lithology, land use, gully density, topography and connectivity (part of the NRM baseline, and of Community Watershed activities) • Variations in rainfall amount and intensity – possible intensive recording to detect natural variation

  11. Other factors affecting the hydrology, requiring additional studies • Extreme events (floods, droughts, storms) – possible intensive recording to detect natural variation in soil transport

  12. Other factors affecting the hydrology, requiring additional studies • Variation in eroded soil type: suspended or bedload – possible in-depth study to measure bedload • Impact of land use on sedimentation – possible in-depth study using runoff plot experiments

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