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Project
experience
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ESPADA
flood forecasting and
warning system for the
town of Nîmes.
 Following the disastrous floods
of October 1988, the
Municipality of Nîmes
launched a flood prevention
programme. The performance-based
invitation to tender
for developing the ESPADA
forecasting and warning
system is one of the
non-structural measures
of this programme, aimed
at providing the town
with a decision-aid
tool to be used in case
of crisis and enabling
it to implement preventive
rescue actions sufficiently
in advance.
The
rapidity of the flood-generating
phenomena, resulting
from the topography
of the upstream catchment
areas and the urban
area which leads to
the rapid concentration
of runoffs, requires
a highly reliable decision-aid
tool (in real time,
the anticipation period
does not exceed one
hour).
The
BCEOM-Météo
France-CS SI Consortium
designed the ESPADA system
to meet this strong operational
requirement.
In real time, the system
performs the following
tasks:
• very short-term
weather forecasting (every
15 minutes) based on radar
images and the meteorological
typology of the situation,
• hydrological forecast
of "inputs"
of rural and urban origins
while taking account of
the incidence of karst,
• forecasting flood
risks through the identification
of scenarios,
• presentation of
relevant elements for
decision-making, while
taking account of uncertainties
inherent to the various
terms,
• managing calls
to launch preventive rescue
actions, according to
the forecast situation.
To
ensure the best reliability
in case of crisis, the
computer system which
has been set up is particularly
protected and efficient:
on-the-spot exchangeable
server, generating set,
emergency communication
equipment, powerful
call automaton, video
surveillance cameras
for the key points of
the water system, fallback
operating procedures.
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Water
development and management
scheme for the Gardon
river.
Managing water resources
in the Gardon catchment
basin involves many
complex issues such
as flood prevention,
improving the quality
of the water, coping
with different uses
of water and preserving
the natural environment.
Taking advantage of
the regulatory framework
offered by the Water
Law, the various local
actors entrusted BCEOM
with the job of designing
and managing the Gardon
River Development and
Management Scheme. This
water management and
preservation strategy
in the form of guidelines
and programmes of action,
was designed in order
to provide a global,
coherent response to
the requirements of
the Water Law.
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Zero
pollution in the Marne.
This project,
carried out by BCEOM-PROLOG,
involved devising a
Water Development and
Management Master Plan
in order to raise bathing
water quality levels
for the Marne River
to European physical
and chemical standards
within the next 10-years,
and keep them there.
It concerned 1,360,000
inhabitants and many
more will be concerned
in the long term with
the development of Marne-la-Vallée.
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Water resources
planning and management
New 
