GEOtop application to La Fouly basin in Switzerland with included new real-time I/O

1. HYDROSYS
PROJECT OVERVIEW & APPLICATIONS
EPFL‐EFLUM Dec. 10th 2009

2. Project Goals

3. Project Goals
 Enabling on‐site data collec0on, visualiza0on and transfer to support new
ways of observing environmental processes.
 Providing a system infrastructure to support teams of users in the on‐site
monitoring of events and analysis of natural resources. It introduces the
innova0ve concept of event‐driven campaigns using handheld devices,
poten0ally supported by an unmanned aerial vehicle (UAV).
 Improving monitoring and management for environmental scien0sts,
ins0tu0ons, service providers, engineering companies and municipali0es
through its strong integra0on of handhelds, sensor networks and modeling.
 www.hydrosysonline.eu

4. La Fouly: GEOtop application to an instrumented
watershed in the Valais
Silvia Simoni
Environmental Fluid Mechanics Department - EPFL

5. Outline
1. Rationale for using a 3D-physically based model
Data spatial variability
2. GEOtop overview
for details: www.geotop.org
3. Rainfall-run off modeling using La Fouly data
4. Snow melt: how to deal with it in absence of measured snow
depth
Lausanne Dec. 10th 2009 - Silvia Simoni

6. La Fouly deployment
Location: La Fouly - Val Ferret, Orsiere VS. water level measuring point
catchment area=20 km2
z min=1785 m z max=3238 m
main stream: Dranse de Ferret

7. Available data
water level @ the outlet − hourly mean
Meteorological data
water level [mm]
300
(precipitation, wind speed and velocity,
100
air temperature and humidity, radiation)
0
18/06 25/06 02/07 09/07 16/07 23/07 30/07 05/08 12/08 19/08 26/08 02/09 09/09 16/09 23/09 30/09 07/10
hourly cumulated rain @ ST1033
Soil data
8
precipitation [mm]
6
(soil moisture, suction and temperature)
4
2
0
18/06 25/06 02/07 09/07 16/07 23/07 30/07 05/08 12/08 19/08 26/08 02/09 09/09 16/09 23/09 30/09 07/10
hourly averaged air Temperature @ ST1033 Water level data
20
Air Temperature [C]
Discharge from rating curve
10
5
0
−5
18/06 25/06 02/07 09/07 16/07 23/07 30/07 05/08 12/08 19/08 26/08 02/09 09/09 16/09 23/09 30/09 07/10
Incoming short wave radiation @ ST1033
Period
1200
ISW radiation [W/m2]
June - October 2009
800
400
0
18/06 25/06 02/07 09/07 16/07 23/07 30/07 05/08 12/08 19/08 26/08 02/09 09/09 16/09 23/09 30/09 07/10
10 Sensorscope stations
1. Data 2. Spatial variability 3. GEOtop 4. Rainfall-run off 5.Snow melt 6.Soil moisture
Lausanne Dec. 10th 2009 - Silvia Simoni

8. Discharge rating curve
8000
Measuments
Discharge rating curve Q=1.594 (h+15.56)2.03
7000
6000
5000
Q [l/s]
4000
3000
2000
1000
0
0 10 20 30 40 50
h [cm]
1. Data 2. Spatial variability 3. GEOtop 4. Rainfall-run off 5.Snow melt 6.Soil moisture
Lausanne Dec. 10th 2009 - Silvia Simoni

9. Spatial variability of rainfall
Hourly Cumulated Rainfall measured @ SS1032 Hourly Cumulated Rainfall @ ST1042
5
8
cumulated rain [mm]
cumulated rain [mm]
4
6
3
4
2
2
1
0
0
18/06 21/06 25/06 28/06 01/07 04/07 08/07 11/07 14/07 17/07 21/07 24/07 27/07 30/07 03/08 06/08 09/08 18/06 21/06 25/06 28/06 01/07 04/07 08/07 11/07 14/07 17/07 21/07 24/07 27/07 30/07 03/08 06/08 09/08
time (day/month) time (day/month)
Italy
G. S. Bernard
N
SG1044
SG1038
Lacs de Fenetre Italy
GPS base station
ST1041 ST1042
ST1040
SS1033 water level @ La Fouly 2009 data − hourly mean
ST1037
100 200 300 400 500
ST1043
water level [mm]
SS1032 ST1035
ST1036
GPRS base station Swiss-South Africa Joint Scientific Conference, Nov 5th 2009
ST1034 20/05 26/05 01/06 07/06 12/06 18/06 24/06 30/06 06/07 11/07 17/07 23/07 29/07 04/08 09/08 15/08 21/08 27/08 8