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The effect of floating urbanisation on
ecology and water quality
F.C. Boogaard(2)(4), R.E. de Graaf(1)(5), M. Dionisio
Pires(3), V. Sazonov(1)(5), R.L.P de Lima(1)
(1) DeltaSync, Delft, The Netherlands; (2) Tauw, Amsterdam, The
Netherlands; (3) Deltares, Delft, The Netherlands; (4) Hanze University of
Applied Sciences, Groningen, The Netherlands; (5) Rotterdam University
of Applied Sciences, Rotterdam, The Netherlands
ir. F.C. (Floris) Boogaard,
0031651 55 68 26
e-mail: f.c.boogaard@tudelft.nl
floris.boogaard@tauw.nl
Content
• Research questions
• Effect on water quality
• First inventarisation
• Measurements
– Innovating approach
– First results
• More info?
• Knowledge exchange
Objectives / Research Question
• The impacts of floating urbanization on water quality
and ecology are largely unknown by water authorities
and municipalities (needed for policy framework and
regulations).
• Research question: What are the (negative and
positive) impacts of floating urban development on
water quality and ecology?
1/21/20154
Hypotheses
*The shadow of floating houses reduces available sunlight. This lowers
the dissolved oxygen levels in their vicinity.
*Below the floating houses a hypoxic area is created and oxygen is
transferred laterally by the adjacent water column. This lowers the
dissolved oxygen levels in their vicinity.
*Wind tunnel effect is produced by the floating houses increasing the
turbulence of the water. This increases the mixing in the water column
which reduces the dissolved oxygen vertical gradient.
Research question
1/21/20155
• Many quantities
• Turbidity
• Temperature
• Dissolved Oxygen
• pH
• Electro conductivity
• Nutrient Loads
• Many interactions
• Biological
• Chemical
• Physical
Research Context: Water Quality
Research method
• Literature review
• Inventarisation
• Field visits
• Surveys
• Workshops
• First Measurements
•Several case studies
•Case 1: Delft
•Case 2: Groningen
•Case 3: Amsterdam
•Case 4: Utrecht
•Case 5: …. Model
• Output
•Report on detailed research
•Tool for international knowledge exchange
•….
Research method
1/21/20158
Numerical modelling: Oxygen
 20
max 0( , , )T
P G I SD z Chla  

 . . . .( ) ( )s a D O sat D OF k w C T C 
 201
2
T
rs rsR k Chla
YCHO
 

 20T
b bD k BOD 

 201 T
b sS S
H
  
  
 
Research method
Meten (continue F=5min):
- zuurstofgehalte
- temperatuur
- waterstanden
Why continue measurements?
OTD6 waterstand/zuurstof/temperatuur in Heeg
0
20
40
60
80
100
120
140
160
1-2-2001
1-2-2001
2-2-2001
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3-2-2001
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24-2-2001
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26-2-2001
27-2-2001
27-2-2001
28-2-2001
datum
waterstand[cm+NAP]
0
2
4
6
8
10
12
14
16
temperatuur[C],zuurstof[mg/l]
waterpeil
temperatuur
zuurstof
bem 651 temperatuur
bem 651 zuurstof
Waterquality is dynamic in time and depth
10
Research| Water quality/ecological impact floating structure
Method: Water Quality Measurements
12
Research| Results
13
Research| Results
14
Research| Results
Overzichtsfilmpje
• https://www.youtube.com/watch?v=pWfeBo33EQU
Presentaties
– Drijvend bouwen en waterkwaliteit. Presentatie bij startbijeenkomst. Floris
Boogaard, Rutger de Graaf en Miguel Dionisio. Tauw Utrecht, 21 januari
2014
– Drijvend bouwen en waterkwaliteit, workshop met bouwers. Floris
Boogaard, Rutger de Graaf en Miguel Dionisio. Deltares, Utrecht. 20 mei
2014.
– Workshop presentation. Tijdens internationale conferentie Deltas in times
of climate change 2, 25 september 2014,
http://www.youtube.com/watch?v=x9JoF7_Dw-o&feature=youtu.be
– Poster presentation Workshop presentation. Tijdens internationale
conferentie Deltas in times of climate change 2, 25 september 2014
– Presentatie DeltaSync Academy, 5 September 2014
Collegereeks
– Webinar SKB. Online college waterkwaliteit en drijvend bouwen, dinsdag 7
oktober van 16.00 - 17.00 uur: deel 1, dinsdag 4 november van 16.00 -
17.00 uur: deel 2. http://www.skbodem.nl/actueel/agenda/160
Deel 1: http://www.youtube.com/watch?v=sy98ERWNGE8
Deel 2: https://www.youtube.com/watch?v=hnGMGz5VRes
15
Research| Results
Publicaties
– Vakpublicatie. Land en Water. Mei 2014.
http://repository.tudelft.nl/assets/uuid:e4421e2e-613a-4b16-8044-
a1f4329d74b0/305156.pdf
– Abstract Effects of floating urban development on water quality and ecology.
Internationale conferentie Deltas in times of climate change 2.
– Poster Effects of floating urban development on water quality and ecology.
Internationale conferentie Deltas in times of climate change 2
Rapportages
– Literatuuronderzoek, Miguel Dionisio, Deltares
– Foka, E. (2014) Water Quality Impact of Floating Houses’ MSc thesis TU Delft.
repository.tudelft.nl/view/ir/uuid%3A1917ffa4-15ac-4c37-8be0-
af706f2bc25e/
– Rapportage IJburg, HvA (gereed)
– Lima, R.P. en V. Sazonov(2015) DeltaSync Report Water Quality
Measurements.
Pers
– Interview RTV Noord Floris Boogaard, september 2014
http://www.rtvnoord.nl/gemist/videogemist.asp?v=30991
– Interview CoBouw September 2014
http://www.cobouw.nl/nieuws/algemeen/2014/09/11/onderzoek-nodig-
naar-kwaliteit-van-water-onder-drijvende-constructies
16
Research| Results
17
Research| Results on www.climatescan.nl
 New Company
 Dynamic Monitoring of water quality and ecology
 Upscaling: floating structures other applications e.g.:
 Ecological measures
 Quay walls and structures
 Inspection
 Improving the drone and further research
Next steps
For more information:
DeltaSync
Dr. ir. Rutger de Graaf-van Dinther
T: +31 152561872
E: rutger@deltasync.nl
www.deltasync.nl
www.blue21.org
http://kenniscentrumrdm.hr.nl/nl/kenniscentrum/lectoren/Rutger-de-Graaf/

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Impact of floating urbanisation on water quality and ecology

  • 1. The effect of floating urbanisation on ecology and water quality F.C. Boogaard(2)(4), R.E. de Graaf(1)(5), M. Dionisio Pires(3), V. Sazonov(1)(5), R.L.P de Lima(1) (1) DeltaSync, Delft, The Netherlands; (2) Tauw, Amsterdam, The Netherlands; (3) Deltares, Delft, The Netherlands; (4) Hanze University of Applied Sciences, Groningen, The Netherlands; (5) Rotterdam University of Applied Sciences, Rotterdam, The Netherlands ir. F.C. (Floris) Boogaard, 0031651 55 68 26 e-mail: f.c.boogaard@tudelft.nl floris.boogaard@tauw.nl
  • 2. Content • Research questions • Effect on water quality • First inventarisation • Measurements – Innovating approach – First results • More info? • Knowledge exchange
  • 3. Objectives / Research Question • The impacts of floating urbanization on water quality and ecology are largely unknown by water authorities and municipalities (needed for policy framework and regulations). • Research question: What are the (negative and positive) impacts of floating urban development on water quality and ecology?
  • 4. 1/21/20154 Hypotheses *The shadow of floating houses reduces available sunlight. This lowers the dissolved oxygen levels in their vicinity. *Below the floating houses a hypoxic area is created and oxygen is transferred laterally by the adjacent water column. This lowers the dissolved oxygen levels in their vicinity. *Wind tunnel effect is produced by the floating houses increasing the turbulence of the water. This increases the mixing in the water column which reduces the dissolved oxygen vertical gradient. Research question
  • 5. 1/21/20155 • Many quantities • Turbidity • Temperature • Dissolved Oxygen • pH • Electro conductivity • Nutrient Loads • Many interactions • Biological • Chemical • Physical Research Context: Water Quality
  • 6. Research method • Literature review • Inventarisation • Field visits • Surveys • Workshops • First Measurements •Several case studies •Case 1: Delft •Case 2: Groningen •Case 3: Amsterdam •Case 4: Utrecht •Case 5: …. Model • Output •Report on detailed research •Tool for international knowledge exchange •….
  • 8. 1/21/20158 Numerical modelling: Oxygen  20 max 0( , , )T P G I SD z Chla     . . . .( ) ( )s a D O sat D OF k w C T C   201 2 T rs rsR k Chla YCHO     20T b bD k BOD    201 T b sS S H         Research method
  • 9. Meten (continue F=5min): - zuurstofgehalte - temperatuur - waterstanden Why continue measurements? OTD6 waterstand/zuurstof/temperatuur in Heeg 0 20 40 60 80 100 120 140 160 1-2-2001 1-2-2001 2-2-2001 3-2-2001 3-2-2001 4-2-2001 5-2-2001 5-2-2001 6-2-2001 7-2-2001 8-2-2001 8-2-2001 9-2-2001 10-2-2001 10-2-2001 11-2-2001 12-2-2001 13-2-2001 13-2-2001 14-2-2001 15-2-2001 15-2-2001 16-2-2001 17-2-2001 17-2-2001 18-2-2001 19-2-2001 20-2-2001 20-2-2001 21-2-2001 22-2-2001 22-2-2001 23-2-2001 24-2-2001 25-2-2001 25-2-2001 26-2-2001 27-2-2001 27-2-2001 28-2-2001 datum waterstand[cm+NAP] 0 2 4 6 8 10 12 14 16 temperatuur[C],zuurstof[mg/l] waterpeil temperatuur zuurstof bem 651 temperatuur bem 651 zuurstof Waterquality is dynamic in time and depth
  • 10. 10 Research| Water quality/ecological impact floating structure
  • 11. Method: Water Quality Measurements
  • 15. Overzichtsfilmpje • https://www.youtube.com/watch?v=pWfeBo33EQU Presentaties – Drijvend bouwen en waterkwaliteit. Presentatie bij startbijeenkomst. Floris Boogaard, Rutger de Graaf en Miguel Dionisio. Tauw Utrecht, 21 januari 2014 – Drijvend bouwen en waterkwaliteit, workshop met bouwers. Floris Boogaard, Rutger de Graaf en Miguel Dionisio. Deltares, Utrecht. 20 mei 2014. – Workshop presentation. Tijdens internationale conferentie Deltas in times of climate change 2, 25 september 2014, http://www.youtube.com/watch?v=x9JoF7_Dw-o&feature=youtu.be – Poster presentation Workshop presentation. Tijdens internationale conferentie Deltas in times of climate change 2, 25 september 2014 – Presentatie DeltaSync Academy, 5 September 2014 Collegereeks – Webinar SKB. Online college waterkwaliteit en drijvend bouwen, dinsdag 7 oktober van 16.00 - 17.00 uur: deel 1, dinsdag 4 november van 16.00 - 17.00 uur: deel 2. http://www.skbodem.nl/actueel/agenda/160 Deel 1: http://www.youtube.com/watch?v=sy98ERWNGE8 Deel 2: https://www.youtube.com/watch?v=hnGMGz5VRes 15 Research| Results
  • 16. Publicaties – Vakpublicatie. Land en Water. Mei 2014. http://repository.tudelft.nl/assets/uuid:e4421e2e-613a-4b16-8044- a1f4329d74b0/305156.pdf – Abstract Effects of floating urban development on water quality and ecology. Internationale conferentie Deltas in times of climate change 2. – Poster Effects of floating urban development on water quality and ecology. Internationale conferentie Deltas in times of climate change 2 Rapportages – Literatuuronderzoek, Miguel Dionisio, Deltares – Foka, E. (2014) Water Quality Impact of Floating Houses’ MSc thesis TU Delft. repository.tudelft.nl/view/ir/uuid%3A1917ffa4-15ac-4c37-8be0- af706f2bc25e/ – Rapportage IJburg, HvA (gereed) – Lima, R.P. en V. Sazonov(2015) DeltaSync Report Water Quality Measurements. Pers – Interview RTV Noord Floris Boogaard, september 2014 http://www.rtvnoord.nl/gemist/videogemist.asp?v=30991 – Interview CoBouw September 2014 http://www.cobouw.nl/nieuws/algemeen/2014/09/11/onderzoek-nodig- naar-kwaliteit-van-water-onder-drijvende-constructies 16 Research| Results
  • 17. 17 Research| Results on www.climatescan.nl
  • 18.  New Company  Dynamic Monitoring of water quality and ecology  Upscaling: floating structures other applications e.g.:  Ecological measures  Quay walls and structures  Inspection  Improving the drone and further research Next steps
  • 19. For more information: DeltaSync Dr. ir. Rutger de Graaf-van Dinther T: +31 152561872 E: rutger@deltasync.nl www.deltasync.nl www.blue21.org http://kenniscentrumrdm.hr.nl/nl/kenniscentrum/lectoren/Rutger-de-Graaf/