Permanent equipment
Most of the runoff gauges on
the Haute-Mentue catchment are operational beginning with 1996
and measurements are taken automatically at 5 minutes time step.
Details about the type of weirs in the actual configuration
can be found in Joerin (2000). All runoff gauges are equipped
with a pressure transducer sonde for measuring the water level
and with a recent HYDROMADD-R data acquisition system, from
which the data is retrieved every 2 weeks on mobile memory cards.
Appropriate rating curves have been used to transform the water
level in discharge data and appropriate formulas are also used
to transform counting of the pluviometers to rainfall intensities.
These transforms have been done with the CODEAU-R
computer program (EPFL-HYDRAM et al. (1996)) developed at HYDRAM
Laboratory in order to handle hydro-meteorological data.
The meteorological data is
collected at the meteorological station (Chalet du Villars)
since 1998 at every 15 minutes and they are retrieved every
2 weeks on the same type of mobile memory as for the water level
data. A network of five pluviometers (tipping-bucket rain gauges)
is operating on the whole Haute-Mentue catchment in order to
better capture the spatial variability of the precipitations.
The figure below shows the spatial distribution
of the permanent equipment on the Haute-Mentue catchment.
Details about the hydrometric and the meteorological
gauges available on the Haute-Mentue catchment for continuous
measurements during 1975-2003 period are given below (more information
about the equipment installed on this catchment can be obtained
from Alex
Amiguet and Bernard
Sperandio):
Hydrometric
stations |
Years |
Topografic
references (m) |
Altitude
(m) |
Type |
Photo |
Dommartin |
1975 |
544'060/ 166'363 |
694 |
Double rectangular weir |
|
Corbassière |
1988 |
544'480/ 162'317 |
843 |
Double V weir |
|
Corbamont |
1990 |
544'504/ 161'205 |
863 |
Venturi flume |
|
Bois-Vuacoz |
1992 |
544'567/ 160'238 |
900 |
H-Flume |
|
Esserts |
1993 |
544'708/ 162'124 |
857 |
V-notch thin-plate weir
H-Flume (since 2002) |
|
Ruzillon |
1993 |
544'279/ 161'197 |
872 |
V-notch thin-plate weir |
|
Chalet du Villars |
1998 |
544'234 /161'846 |
863 |
Meteorological station
Etrelec
|
|
Chalet du Villars
Froideville
Villars Tiercelin
Chardonney
Chalet d'Orsoud |
1987
1987
1987
1987
1995
|
544'234 /161'846
542'845/ 161'944
543'960/164'510
544'200/166'206
|
863
809
809
750 |
Tipping-bucket pluviometers
Etrelec
|
|
Temporary equipment
Beside the permanent instruments, several complementary
equipments have been installed temporally during several intensive
field campaigns. These concern:
- TDR (Time Domain Reflectometry) set-up for
measuring and monitoring the soil moisture humidity at several
depths along the hillslope on two geologically representative
sites of the Corbassière catchment.
- ISCO water samplers used to collect stream
water samples at several locations (Corbassière, Esserts,
Ruzillon and Bois-Vuacoz outlets) further analyzed in the laboratory
for different chemical species.
- shallow piezometers installed in autumn 2002
in order to test the hypothesis of possible superficial perched
temporary water tables on the Ruzillon site.
Details about available set of instruments
available on intensive field campaigns on the Corbassière
catchment during 2001-2003 period are given below:
Temporary
equipment |
Periods |
Sites |
Produced by |
Photo |
ISCO sampler (3700 and
6712) |
1990-2002 |
all catchment outlets;meteorological
station |
ISCO
|
|
ISCO - flow meter 4220 |
1990-2002 |
all catchment outlets; meteorological
station |
ISCO
|
|
TEKTRONIX -1502B- oscillloscope |
1998-1999
2002-2004 |
Bois-Vuacoz; Ruzillon; Esserts |
TEKTRONIX
|
|
CR10-Datalogger
CR21 - Datalogger |
1998-1999
2002-2004 |
Bois-Vuacoz; Ruzillon; Esserts |
Campbell
Scientific
|
|
TDR probes |
1998-1999
2002-2004 |
Bois-Vuacoz; Ruzillon; Esserts |
Etrelec |
|
Rainfall simulator |
1998 |
Ruzillon site |
HYDRAM
(acording to Orstom rainfall simulator)
|
|
Salinomadd |
since 2002 |
all catchment streams |
Etrelec
|
|
GGUN-fluorimeter |
1999 |
Bois-Vuacoz site |
Neuchâtel
University |
|
Geophysical set-up |
since 2002 |
Ruzillon; Esserts sites |
Institute
of Geophysics Lausanne |
|
|