After: , Mills, J. and D. Dodd. 2014, Ellipsoidally Referenced - PowerPoint PPT Presentation

Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN Dynamic Chart Datum For Safety Navigation After: , Mills, J. and D. Dodd. 2014, Ellipsoidally Referenced Surveying for Hydrography, International Federation of Surveyors (FIG), Copenhagen, Demark, May.

Implementing Satellite Altimetry Data For The Determination Of River Nile Dynamic Chart Datum For Safety Navigation Prof. Moustafa Baraka Prof. Adel El-Shazly Dr. Waleed El-Dash The Civil Engineering Program Faculty of Civil Engineering Ministry of Water Resources & Irrigation, Egypt The German University in Cairo University Cairo September 2014 Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN Dynamic Chart Datum For Safety Navigation

Vertical Datum Navigation and hydrography Land and topographic surveys Chart datum Geoid River chart datum MSL Dynamic river chart datum Ellipsoid - Vertical datum (VD) is used as a reference surface. - The VD is completely realized by the Geoid. - An approximation to the Geoid is mean sea level (MSL). - Geoid/MSL for land survey and topographic mapping. - Chart Datum (CD) for navigation and hydrography Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 1/15 Dynamic Chart Datum For Safety Navigation

Chart Datum After: , Mills, J. and D. Dodd. 2014, Ellipsoidally Referenced Surveying for Hydrography, International Federation of Surveyors (FIG), Copenhagen, Demark, May. Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 2/15 Dynamic Chart Datum For Safety Navigation

Chart Datum After: Desler, J. et al, GPS Derived Water Levels for Large Scale Hydrographic Surveys, US Hydro 2009 Virginia USA, May. Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 3/15 Dynamic Chart Datum For Safety Navigation

River Chart Datum - The water level should be above datum approximately 95% of the time. River chart datum is a sloping surface ≈ slope of river Surface at low stage. - Daily mean water level should “never” fall more than 0.2 m below the chart - datum during the navigation season. Dynamic River Chart Datum Monthly water level record → accurate chart datum at coastal location - - Many years of records necessary to provide mean water level required to determine dynamic river chart datum for lakes and rivers. - Chart datum varies with time, location & discharge (dynamic chart datum). Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 4/15 Dynamic Chart Datum For Safety Navigation

Dynamic River Chart Datum for River Nile Using Satellite Altimtery - Use of satellite altimetry data to bridge the gap in monitoring river Nile water level ( technical, political and economic constraints). - Develop a new, rigorous and sustainable dynamic river chart datum using recent satellite altimetry data in presence of scarce water-level gauge. Most of satellite altimetry systems are related to WGS84 ellipsoid. - - Satellite altimetry provides dense and reliable data on: sea surface height, wave height, surface wind speed. Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 5/15 Dynamic Chart Datum For Safety Navigation

Satellite Altimetry Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 6/15 Dynamic Chart Datum For Safety Navigation

Satellite Altimetry Systems Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 7/15 Dynamic Chart Datum For Safety Navigation

Satellite Altimetry For River Nile and Its Lakes Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 8/15 Dynamic Chart Datum For Safety Navigation

Satellite Data for River Nile and Its Lakes Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 9/15 Dynamic Chart Datum For Safety Navigation

Determination Dynamic Chart Datum in Lake Nasser Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 10/15 Dynamic Chart Datum For Safety Navigation

Determination Dynamic Chart Datum in Lake Nasser Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 11/15 Dynamic Chart Datum For Safety Navigation

Determination Dynamic Chart Datum in Lake Nasser Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 12/15 Dynamic Chart Datum For Safety Navigation

Determination Dynamic Chart Datum in Lake Nasser Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 13/15 Dynamic Chart Datum For Safety Navigation

Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 14/15 Dynamic Chart Datum For Safety Navigation

Thank You Prof. M. Baraka, Prof. A. El-Shazly, Dr. W. El-Dash Melaha 2014 – Resilience Navigation 01 - 03 September, 2014 - Alexandria, Egypt Implementing Sat Altimetry Data for the Det. of River Nile Organized by AIN 15/15 Dynamic Chart Datum For Safety Navigation