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Assessment of Shoreline Dynamics at Bonny Island, Nigeria using Geospatial Techniques
Authors(2) :-Brown Joshua, Adekunle I. A
Bonny Island is a highly dynamic one as there is a high level of interplay between the forces of erosion and accretion. From previous studies by the Nigerian Institute for Oceanography and Marine Research (NIOMR), the annual rate of erosion has been put at about 20 – 35 metres along the bonny shoreline. This claim was confirmed from the present study carried out along 12 transect points of 500 metres intervals along the Finima section of the Bonny beach. Geospatial techniques were used to carry out the assessment of the state of the bonny shoreline. Satellite imageries from 1976 – 2005 were used in the study and GPS receiver was also used to acquire the shoreline position along the transect points for 2011. From the result of the study, the Finima beach area was found to have the highest rate of shoreline dynamics. Erosion dominated in this area over accretion. This area experienced a total land area loss of 458.04 hectares of land out of which erosion and accretion recorded 280.47 and 177.57 hectares respectively. By this it means erosion claimed about 61.2% of the total land area while accretion recorded a 39.8% land increase. The changes were largely attributed to the presence of oil exploration activities as prior to the commencement of this anthropogenic activities there was lesser impacts of erosion as accretion predominated the area. There is therefore a cogent need to adopt some proactive measures to protect the bonny beach, from further land loss due to erosion and the untold hardship it brings to the coastal residents.
Brown Joshua, Adekunle I. A
Nigeria, Bonny Island, Shorelines Dynamics, GIS, Remote Sensing and Global Positioning System
- Arkal, V. H, (2010) Coastal erosion and mitigation methods – Global state of art; Department of Applied Mechanics and Hydraulics, National Institute of Technology Karnataka, Surathkal, Mangalore 575 025, India; Indian Journal of Geo-Marine Sciences Vol. 39(4), December 2010, pp. 521-530.
- Awosika, L. F. (1992) Coastal erosion in West Africa: causes, effects and response options. Paper presented at an International Conference on the Rational Use of the Coastal Zone (Bordeaux, France, 30 September-3 October).
- Awosika, L. F. (1993) Coastline erosion in Nigeria and some other West African coastal states: regional approach to response measures. Paper presented at the 3rd Meeting of the Inter-Africa Committee on Oceanography, Sea and Inland Fisheries (Cairo, Egypt, 12-17 April).
- Balogun, A. P. (1995) Prediction of possible impacts of sea level rise on Victoria Island. MSc Project Report, Department of Surveying, University of Lagos, Lagos, Nigeria.
- Bird, E.C.F. 2000. Coastal geomorphology: an introduction. Chichester, John Wiley & Sons, 2000. Federal Ministry of Environment 1996, Environmental Impact Assessment of the Bonny Channel Dualisation Project, EIA, 1996.
- Ibe, A. C. (1990) Global climate change and the vulnerability of the Nigerian coastal zone to accelerated sea level rise: impacts and response measures. A lecture delivered at the 1st Federal Ministry of Science and Technology Monthly Seminar for 1990 (24 January 1990).
- Ibe, A. C, and Anitia, E. E (1983) Preliminary Assessment of impact of erosion long the Nigerian shoreline; Nigerian Institute for Oceanography and Marine Research; technical paper No.3
- Jimmy O.A, Mofoluso F, Godstime J, Ganiyu A, Temi E.O, (2010), An Assessment of Recent Changes in the Niger Delta Coastline Using Satellite Imagery, Journal of Sustainable Development, Vol. 3 December, 2010.
- NDES, 2000 Hydrological Characteristics of the Niger Delta, Vol.49, NDES 2000, unpublished Scientific Research.
- Nwilo, P. C. & Onuoha, A. (1993) Environmental impacts of human activities on the coastal areas of Nigeria. In: Coastlines of Western Africa (ed. by L. F. Awosika & O. Magoon), American Society of Engineers.
- Nwilo, P. C. (1995) Sea level variations and the impacts along the Nigerian coastal areas. PhD Thesis, Environmental Resources Unit, University of Salford, Salford, UK.
- Pritam, C. and Prasenjit, A. (2010) Shoreline Change and Sea Level Rise Along Coast Of Bhitarkanika Wildlife Sanctuary, Orissa: An Analytical Approach Of Remote Sensing And Statistical Techniques; International Journal Of Geomatics And Geosciences Volume 1, No 3, 2010
- Reide D, Walsh J.P, Cowart L, Riggs S.R, Ames D.V, Culver S.J, (2008), Shoreline change within the Albemarle-Pamlico Estuarine System, North Carolina. A white Paper Department of Geological Sciences, Thomas Harriot College of Arts and Sciences and 1Institute for Coastal Science and Policy East Carolina University
- Rivis, R (2005) Dynamics in Estonia Associated With Climate Change Shoreline
Published in : Volume 1 | Issue 5 | November-December 2015
Date of Publication : 2015-12-25
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 23-34
Manuscript Number : IJSRST151448
Publisher : Technoscience Academy
PRINT ISSN : 2395-6011
ONLINE ISSN : 2395-602X
Cite This Article :
Brown Joshua, Adekunle I. A, "Assessment of Shoreline Dynamics at Bonny Island, Nigeria using Geospatial Techniques", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 1, Issue 5, pp.23-34, November-December-2015
URL : http://ijsrst.com/IJSRST151448