By
Elias Ntungwe Ngalame
DAR ES SALAAM, Tanzania (PAMACC News) – Extreme
droughts, floods and other climate challenges are leading to an increase in
both the number and intensity of disasters all over the world and in Africa in
particular. Countries in the Sahel regions in Africa are worst affected,
experts have revealed.
Participants
at a technical meeting in the 6th Africa Water Week in Dar es Salam on
July 19, 2016, agreed early warning systems adapted to the realities of
different countries will help governments cope with the huge climate challenges
plaguing Africa.
“African countries are barely able to cope
with the massive climate challenges, but we think the institution of early
warning systems adapted to the realities of each country is cardinal,” noted
Mohamed Gilla of the Lake Chad Basin Commission at the meeting.
He
said combining local and expert knowledge in addressing the challenges will
yield more fruitful results.
“While
expert knowledge with innovations is a key driver, the use of local and
indigenous knowledge cannot be left out,” Mohamed said.
Convened
by UNESCO and Swedish Meteorological and Hydrological Institution, the event
focused on the theme “Early warning systems for water extremes and climate
change information in Africa.”
Panelists
highlighted ongoing tools and methodologies in addressing floods, droughts and
other water related climate disasters in Africa and suggested ways of improving
on them.
One
of the key elements in any early warning system it was agreed is communication
of the right information and training.
“Getting
the right information to the relevant target audience is capital. Also of no
less importance is capacity building of both the indigenous population and the
experts,” the panelists noted.
Extreme
climate affects agriculture dependent livelihoods, thus building and improving
the capacities of farmers on early warning intricacies and techniques will help
them better stand the challenges experts said.
Use of local knowledge and resource
persons
The
creation and training of a committee of local volunteers to assists regularly
in activities to improve on existing warning systems such as measurement of
water level of rivers, streams and sending on the data for analysis to existing
weather forecasting centers was also highlighted.
Networking
with local resource persons and knowledge has yielded positive results in early
warning methodologies in many countries in Africa, experts said.
“If
there are any irregularities, these local vigilant committees inform the
first-aiders in the villages, who warn people via local radio and phones if a
disaster is imminent. In the event of flooding, they help to evacuate the
villagers to higher ground,” said Obrigada Joana of Waternet Trust in a
presentation at the meeting.
In many countries where such local
organization exist like the case of Mozambique, these early local committees
are an important step in adapting to climate change, she revealed.
Expert however agree the use
of early warning technologies like weather forecast centers have their
limitations given that climate science is not exact science with stated
formula.
Countries in the Inter-Tropical
Convergence Zones for example,witness intense thunderstorms around the equator where
the trade winds from both hemispheres meet frequently. They thus experience
heavy showers and thunderstorms which develop and dissipate very suddenly.
In the tropics, the weather systems are
largely driven by prevailing winds whereby small changes in the wind speed and
direction can result in significant changes in weather. The problem is
compounded because winds near the equator are generally quite light and
variable, and thus more difficult to predict, experts explained.
In Chad for example wrong signals
of predicted heavy winds in 2010 caused state authorities to close down the use
of the airport for over a week causing the state heavy loss as the winds never
came.
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