Communities in Lagos, Nigeria’s commercial capital, are reporting increasing incidents of floods and rising flood waters threatening their livelihoods and
Prof Lukumon Adeoti, the principal investigator, Earth Signature Research Group, Department of Geosciences, in the University of Lagos stated that beyond the report, there are evidences that subsidence rate in many cities in Nigeria is increasing.
The report recommended expanded monitoring and policy interventions to reduce subsidence rates and minimize the consequences. It also suggested that Permanent Global Navigation Satellite System stations can provide accurate measurements of coastal subsidence but are limited in their spatial coverage and spatial resolution.
It further said that in cities where openly accessible GNSS data are not available, true subsidence rates may be even higher than we have estimated from InSAR data, if the reference area is subsiding. He said, “The problem we are facing in Nigeria is that we don’t make use of the right method sometimes in finding the nature of the sub-surface before building. There is the Geophysical Method, Geotechnical Method and Multichannel Analysis of Surface Waves .
Prof Adeoti advocated for synergy between town and town – the academia and the practitioners should synergize in implementing best standards to prevent what will lead to disasters. “They didn’t look at Bayelsa, Rivers State where all these soils come from. I worked in Bayelsa for eight years and day and night, they flare gas. Out of all these gases flared is what contributes to global warming. Global warming leads to subsidence that you are talking about. And this has affected the whole world.”
He advocated good governance which will make the government and agencies make good policies, just as he said the private sector should be allowed to get into management as the government cannot do it alone. “So efforts should be made to promote conversion of our wastes to energy. We have some inventors in this country that have done it and they should be encouraged,” he further said.
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