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Hydro Project Planning Overview

Hydro Project Planning Overview. Request for Tides / Water Level Support. Requirements Planning. 1. Determination of tidal characteristics of the survey area , potential differential effects of meteorology or river flow on water levels in the survey area

kennan-summers
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Hydro Project Planning Overview

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  1. Hydro Project Planning Overview

  2. Request for Tides / Water Level Support

  3. Requirements Planning • 1. Determination of tidal characteristics of the survey area, potential differential • effects of meteorology or river flow on water levels in the survey area • 2. Determination of appropriate operating control station(s) from the National • Water Level Observation Network (NWLON) for computation of tidal • datums and water level reducers • 3. Determination of subordinate station locations required for operation • during the survey for computation of water level reducers and tidal datums • Generate Preliminary Tidal Zoning referenced to an operating NWLON station • 5. Write Project instructions to support hydrography or photogrammetric surveys

  4. Wind Wind Influence Great example for not running hydro of predicted tides!

  5. Rain Influence • Rain / River Runoff can distort tidal signatures • Run hydrography during anomalous period- significant error in tide reducers.

  6. Dover

  7. Diurnal / Semidiurnal Transitional Areas Gulf of Mexico 5.6 miles Atlantic Ocean

  8. Key Colony Vaca Key CHANGE IN TIDE TYPE High range Semi-diurnal tide Low range Noisy diurnal tide

  9. Geology Changing Areas

  10. Shallow Areas

  11. NWLON Stations and Active Stations http://www.tidesandcurrents.noaa.gov/gmap3/

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