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Books > Earth & environment > Earth sciences > The hydrosphere
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Satellite-Based Mitigation and Adaptation Scenarios for Sea Level Rise in the Lower Niger Delta (Paperback)
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Satellite-Based Mitigation and Adaptation Scenarios for Sea Level Rise in the Lower Niger Delta (Paperback)
Series: IHE Delft PhD Thesis Series
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The Niger delta with its gentle slope and low elevation is
extremely sensitive to effects of climate change. Its adaptive
capacity is the second lowest in terms of socio-economic
development in Nigeria. Quantitative studies on developing measures
for coastal planning and management in the lower Niger delta have
been limited by data availability and inaccessibility of parts of
the delta. The use of satellite data can help bridge the data gap
by providing ancillary data (imagery, elevation, altimetry etc.)
that can be used to quantify the effects of SLR in the Niger delta.
This thesis uses satellite data as the main source for hydrodynamic
modelling and GIS analysis. Until recently such data might not have
the accuracy and precision of directly measured data. However
recent innovative approaches have enabled better exploitation of
satellite data to overcome these limitations and produce adequate
results to assess the impact of SLR on the Niger delta in an
integrated way that will lead to practical recommendations for
adaptation. Using projected global eustatic SLR values in
combination with land subsidence, this thesis estimated SLR levels
for the Niger delta and its effect on inundation areas and flood
extent. The results indicate that the Niger delta is very
vulnerable to inundation and that even minimal SLR will affect
flooding in the lower Niger delta since the area continues to
subside. A new coastal vulnerability index was developed in this
thesis by evaluating physical, social and human influence
indicators of exposure, susceptibility and resilience. The results
show that parts of the Niger delta are highly vulnerable to SLR and
need adequate mitigation/adaptation measures to protect them. It is
recommended that sustainable local resilience practices already
being used in parts of the Niger delta should be included in
adaptation planning.
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