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![Page 1: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/1.jpg)
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Nick van de Giesen ([email protected])
John Selker (OSU)
Trans-African Hydro-Meteorological Observatory
![Page 2: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/2.jpg)
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Background
![Page 3: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/3.jpg)
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60% world’s uncultivated arable land!
Background
![Page 4: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/4.jpg)
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Background
WMO Stations
![Page 5: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/5.jpg)
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Background
WMO Stations
![Page 6: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/6.jpg)
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Background
WMO Stations
5,000
![Page 7: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/7.jpg)
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Background
Leapfrog: 20,000 TAHMO Stations!
![Page 8: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/8.jpg)
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Design
Principles
• Robust
• No moving parts
• No cavities
• Cheap (<$500)
• Self calibrating
• Cross calibrating
Picture: Jens Liebe
![Page 9: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/9.jpg)
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Design
Principles
• Robust
• No moving parts
• No cavities
• Cheap (<$500)
• Self calibrating
• Cross calibrating
Picture: Jens Liebe
![Page 10: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/10.jpg)
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Design
Principles
• Robust
• No moving parts
• No cavities
• Cheap (<$500)
• Self calibrating
• Cross calibrating
Picture: Jens Liebe
![Page 11: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/11.jpg)
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Design
Principles
• Robust
• No moving parts
• No cavities
• Cheap (<$500)
• Self calibrating
• Cross calibrating
Picture: Jens Liebe
![Page 12: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/12.jpg)
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Design
Three frustrations
• No data
• Expensive equipment, maintenance
• End with project
![Page 13: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/13.jpg)
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Design
Precipitation
Joss-Waldvogel (acoustic)
Laser disdrometer
Video disdrometer Microwave disdrometer
>10,000 Euros
![Page 14: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/14.jpg)
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Design
Precipitation
Coen Degen
Piezo ceramic element
![Page 15: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/15.jpg)
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Design
Precipitation
Coen Degen
Sources: “Tropical raindrop anatomy,” S.K. Shariah et al. & “Newtonian drop impact with a solid surface”, B.L. Scheller and D.W. Bousfield
![Page 16: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/16.jpg)
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Design
Precipitation
Coen Degen 10 7,348 10sE D
![Page 17: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/17.jpg)
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Design
One sensor down… n to go!
![Page 18: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/18.jpg)
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Design
Present model
![Page 19: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/19.jpg)
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Operation
Business case: Insurance
• Droughts
• Floods
• Diseases?
![Page 20: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/20.jpg)
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![Page 21: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/21.jpg)
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Operation
MoU
![Page 22: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/22.jpg)
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Operation
Communication
![Page 23: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/23.jpg)
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Education
School-2-School
• Develop environmental education package
• Teach children about their environment
• Teach children about their environmental
connectedness
![Page 24: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/24.jpg)
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Education
Role out TAHMO
School-to-School
![Page 25: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/25.jpg)
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Education
Role out TAHMO
High schoolscurriculum
![Page 26: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/26.jpg)
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EducationInternational Climate Team - Idaho
![Page 27: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/27.jpg)
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Education
School2School program
• Sister school
• Costs sharing
• Involvement
• Sharing ideas
![Page 28: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/28.jpg)
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Education
Role out TAHMO
High schoolscurriculum
![Page 29: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/29.jpg)
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Education
• Associate with schools• Develop environmental education package• Teach children about their environment• Teach children about their environmental
connectedness
![Page 30: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/30.jpg)
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Education
Universities• Nairobi• Akure
Sensor Design Competition
![Page 31: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/31.jpg)
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Education
In field calibration competition
![Page 32: 1 Nick van de Giesen (n.c.vandegiesen@tudelft.nl) John Selker (OSU) Trans-African Hydro-Meteorological Observatory.](https://reader036.fdocuments.net/reader036/viewer/2022062309/5697bffc1a28abf838cc170e/html5/thumbnails/32.jpg)
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Next steps
Pilots
• Ghana
• Kenya
• Uganda