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| Titel |
The Niger Delta's vulnerability to river floods due to sea level rise |
| VerfasserIn |
Z. N. Musa, I. Popescu, A. Mynett |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 14, no. 12 ; Nr. 14, no. 12 (2014-12-19), S.3317-3329 |
| Datensatznummer |
250118805
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| Publikation (Nr.) |
 copernicus.org/nhess-14-3317-2014.pdf |
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| Zusammenfassung |
| An evaluation of vulnerability to sea level rise is undertaken for the Niger
Delta based on 17 physical, social and human influence indicators of
exposure, susceptibility and resilience. The assessment used geographic
information systems (GIS) techniques to evaluate and analyse the indicators
and the index of coastal vulnerability to floods, if sea level rise
conditions are occurring. Each indicator value is based on data extracted
from various sources, including remote sensing, measured historical data
series and a literature search. Further on, indicators are ranked on a scale
from 1 to 5 representing "very low" to "very high" vulnerability, based
on their values. These ranks are used to determine a similar rank for the
defined coastal vulnerability index (CVSLRI). Results indicate
that 42.6% of the Niger Delta is highly vulnerable to sea level rise,
such areas being characterised by low slopes, low topography, high mean wave
heights, and unconfined aquifers. Moreover, the analysis of social and human
influences on the environment indicate high vulnerability to sea level rise
due to its ranking for type of aquifer, aquifer hydraulic conductivity,
population growth, sediment supply and groundwater consumption. Such results
may help decision makers during planning to take proper adaptive measures for
reducing the Niger Delta's vulnerability, as well as increasing the
resilience to potential future floods. |
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