Telemetry System: A Tool for Water Management
Schematic image of telemetry taken from the internet |
Supervisory Control and
Data Acquisition (SCADA), telemetry system, is being used globally as an
effective real time monitoring mechanism for water quantity, quality, sediment
flow, snow and ice melt, weather forecasting and meteorological data for
improved decision making. Telemetry, therefore, has become indispensable tool for
water management applications on real time basis.
In
the context of water distribution, Pakistan has also put this hardware in place
at 23 critical points of the Indus River Basin as a Confidence Building Measure
(CBM). We must make this mechanism of transparent water distribution to work as
its alternative is hardly in the best strategic interests of any region of our
country. Moreover, a successful local use of telemetry system for water transactions
among four provinces will provide Pakistan a well-tested and refined set of
guidelines for operating similar telemetry intervention on all rivers of Indus Basin
in this region.
During the third week of July, 2010, the Indus Water
Commission has agreed in principle to install telemetry system on the Indus
River System as a Confidence Building Measure (CBM) for transparent and real
time water transactions between India and Pakistan. In principle, it is a very
welcome outcome of the just concluded talks between the two Indus Water
Commissioners in Lahore. However, where serious vested interests are
challenged, making such CBM work will definitely challenge the very sincerity
and fairness of each member country. No doubt, if the proposed telemetry is
properly installed and operated, either by a third party or jointly, this
intervention will go a long way to restore trust and to minimize uncertainty
and confusion over water transactions between the two countries that share the Indus Basin.
However, national and international experience regarding the
use of telemetry system for water transaction between two countries or, for
that matter, different regions of one country is not very encouraging. Let me
add, quickly, that there is nothing wrong with the technology itself, it works
wonders as its use by the states (Colorado, Utah, New Mexico, Nevada, Arizona
and California) and stakeholders along the Colorado River suggests. However, under
conflict situations, an effective telemetry operation demands the way all
relevant users organize themselves and create appropriate conditions to address
their respective fears and mistrust in a transparent and fair manner.
Before debating the use of telemetry system for water transaction,
a quick account of the experience regarding the recent use of the technology in
Pakistan is appropriate. By doing so, we intend to expose and explore the real
reasons that create controversies about the use of the telemetry system in the
choice area.
Telemetry image copied from the Internet |
After the floods of 1988, the Government of Pakistan decided
to install a telemetry system at key points of the Indus River and its
tributaries. With UN support, the system came on board in the early nineties.
Since its installation, the system keeps providing valuable real time data
about flood monitoring and forecasting. So far, no one has expressed any
mistrust about the functionality of the hardware.
Again in Pakistan, under Snow & Ice Hydrology Project of
WAPDA, a telemetry system has functioned successfully at 17 points in our
mountainous zone for over a decade. Even
in this case, there are no complaints to report about the utility of the system.
From the above cited cases, no one has expressed any
mistrust about the usefulness of telemetry system itself. An obvious reason for
the stated no mistrust, about the technology in the referred applications,
seems that both project uses were purely technical in nature and the data
generated did not discriminate or hit vested interests of any region or users. In
other words, such applications of telemetry system were almost innocuous in
nature.
These two examples also show that mistrust or trust about
the telemetry system has potential linkage with its use in areas where either
conflicts of interests abound or remain bare minimum. To probe this hypothesis
further, in addition to the above two cases, we need to look at local
experiences of the telemetry system in water distribution as well.
When the Government decided to install the SCADA system at
critical points along the Indus River Network for monitoring water distribution
to different provinces, each province was also given an option to equip one
canal system to observe water distribution at a canal command level as well. In
Sindh, this system is already operational.
Since the Government of Sindh was quicker in establishing
Farmer Organizations (FOs) and Area Water Boards (AWBs), Sindh Irrigation and
Drainage Authority (SIDA) installed the telemetry system on the Twin Jamrao
Head Regulator. According to an article presented in 2004 by a SIDA Officials,
Dr. Mumtaz Ahmed Sohag & Ali Asghar Mahessar, the real time data of the
telemetry system are readily available for the SIDA office in Hyderabad and
Nara Canal Area Water Board in Mirpurkhas to ensure fair water distribution at
this canal level. In their own words: “The system is working very efficiently and
has opened new vistas; however, it requires willingness and participation of
engineers and farmers. The technology is simple, suitable, fool proof and
completely automatic”.
Although it sounds too good to be true, Punjab Irrigation
and Drainage Authority (PIDA) seems even more convinced about the usefulness of
telemetry system for eliminating human error and discretion to achieve an equitable and sustainable water
distribution within a command area of 3.1 million acres of the Lower Chenab
Canal (LCC). According to the Secretary of Punjab Irrigation Department (PID)
and Managing Director of PIDA, the provincial Government set aside Rs.100
millions to complete this project by 2007. The Australian Government provided a
grant of one million dollars to install the system. According the INPIM’s news
e-letter of 15th January 2007, the project was launched to cover 23
critical points of the canal system of four sub-main canals and 445
distributaries.
However, when it comes to the same telemetry system at the national
level, in spite of huge investment and efforts, is yet to be made operational
on one pretext or other. Why does a system that is so much praised, owned,
adored and desired at the provincial levels becomes a source of mistrust and
conflict at national level? Clearly, it has nothing to do with technology
itself; perhaps, it has something to do with what this technology can expose that
goes on in the business of water transactions.
Based on the information presented, logical thinking leads
us to infer that the often expressed misgivings about the telemetry system are
a mere symptom of a deep-rooted mistrust, vested interest and manipulation that
exist between the four provinces about water transactions itself. Unless we
dare to change this mindset and hidden agendas, Pakistan will continue to
severely undercut its enormous hydro-potential.
However, this kind of mutual mistrust and delays in making
the telemetry system work should not discourage us too much. In a federation,
these types of controversies are bound to happen because of political losses
and gains. Because of the sensitive nature of water distribution, even some
unitary governments face similar mistrust and delays.
In Egypt, for example, a Main System Management (MSN)
project was initiated in the early nineties that included an installation of a
telemetry system at 53 diversion points of 26 directorates and 113 division
points between districts. The project ended in 1997 but the system could not
function as the calibration part remained incomplete. By 2004, with the USAID
support, the calibration work for 15 directorates came to an end. It is assumed
that by the time this system becomes fully operational, it will be touching a
period of nearly two decades and even then there is no guarantee that such
intervention will be allowed to function.
Of course, in this given scenario, it is alright to wait a
bit more but it will be wrong to wait too long and then not try to learn more
about the difficulties others have faced in making the telemetry system work. Moreover, in this context, there are certain
other related technical issues that need our immediate attention as well.
Potential technical issues include: limited supply of spare
parts, less importance given towards training of technicians and trying to
install the complicated remote control telemetry systems. The main technical issues
conceived are: calibration of water control structures for flow measurement,
selection of agency for the calibration, field vandalism and canal water levels
that are traditionally monitored.
Traditionally, the water supply network is operated using
water levels. These levels are then correlated with discharges based on age-old
curves. Rim stations along rivers usually follow this way of flow measurements.
Very similar procedure works in the case of canals as well where gauges are installed
on the down-stream side of control structures.
Location of gauges is such that flow conditions do not allow
a unique depth and discharge relationships. This can happen due to sub-critical
flow conditions, sedimentation, erosion, or back-water effects from the downstream
structures. So to get more accurate flow measurements, the telemetry apparatus can
help us to collect water levels and gate openings of control structures as they
are excellent flow measuring devices as well. However, downstream water level
monitoring is also important to keep monitoring flood levels or breaching /
sediment potential of canals.
In developed countries, water supply networks are fully
equipped with multi-function telemetry systems. In this context, Colorado River
is a good example where more than a dozen dams and state irrigation systems are
monitored on a real time basis. Telemetry system installed by the federal
government is countered checked by irrigation districts or companies by
installing their own similar systems. The Australian irrigation water supply
network is also fully regulated with a telemetry system.
Fortunately, Pakistan is not very far behind. With its
watershed forecasting and flood warning telemetry systems in place, things are
moving fast for the use of the same technology for water distribution. Punjab
claims to have a multi-functional telemetry apparatus to monitor and forecast
weather, capacity to determine irrigation requirements by connecting it to the meteorological
office along with the usual reporting of water levels and quantities on a real
time basis. In the near future, if conducive conditions are created, we should
have the entire Indus River Basin managed with real time accurate data.
However, the current use of telemetry system in Punjab and
Sindh on selected canals appears to merely be a hydro-political gimmick or at
the very best, for demonstration purposes only. How this technology gets
internalized, with changed rule, roles, rights and responsibilities, is nowhere
in sight yet. As a matter of fact, it will be interesting to find out if these
installations are still even functional at this point and time. Unless we
create such conditions that eliminate rent-seeking behavior of water
distributors, it does not seems logical that such technology will be allowed to
function for sensitive matters like water distribution; be it a canal that
serves many secondary canals or a rivers that deliver water to different
provinces. This can be facilitated if the provincial system is counter-checked
by telemetry system by Farmers’ Organizations at canal level and federal system
is verified by regional telemetry systems by each province.
Moving up to the Indus River System, the use of telemetry
system has a much better chance to succeed as the water distribution between
India and Pakistan is not based on sharing flows of all rivers (to a greater
extent) but instead on the divided rivers within the Indus Basin. If India is
not siphoning out flows of the three western rivers, it would be in any case very
hard to hide such mal-practice, or the intent to do so; any temptation and
craving to disrupt the functioning of a telemetry system will be not as steep and
excessive as one can expect while distributing water from one province to another
or from a secondary canal to another.
However, when relations become tense between India and
Pakistan, it has become a norm rather than an exception, that the telemetry
system is expected to be the first victim as water can be used as a whipping
tool to squeeze favorable hydro-political results for India. This can be done
by changing timing of river flows to Pakistan when water demand for agriculture
will be at a peak or when the new cropping season starts. By making telemetry
system dysfunctional, such flow manipulations could result.
Even if India does not do as stated, there will still be a huge
potential to believe so as the mistrust will abound and people in Pakistan will
suspect or they will be made to believe that the telemetry system is being
manipulated. So, agreeing to mere installing telemetry system on Indus river
system is not sufficient to achieve intended results but we must insist that
these installations are either operated jointly or by an agreed third party to let
this system become an ultimate confidence building measure as far as the
implementation of Indus Water Treaty is concerned in its true letter and
spirit.
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