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<front>
<journal-meta>
<journal-id journal-id-type="publisher">ISPRS-Archives</journal-id>
<journal-title-group>
<journal-title>The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences</journal-title>
<abbrev-journal-title abbrev-type="publisher">ISPRS-Archives</abbrev-journal-title>
<abbrev-journal-title abbrev-type="nlm-ta">Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">2194-9034</issn>
<publisher><publisher-name>Copernicus Publications</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/isprs-archives-XLVIII-4-W6-2022-371-2023</article-id>
<title-group>
<article-title>FRACTAL ANALYSIS FOR OIL SPILLS CLUSTERING IN AHOADA COMMUNITIES OF THE NIGER DELTA REGION OF NIGERIA</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Umar</surname>
<given-names>H. A.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Abdul Khanan</surname>
<given-names>M. F.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Magashi</surname>
<given-names>S. B.</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Ja’afar</surname>
<given-names>M. M.</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Sani</surname>
<given-names>M. J.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
<xref ref-type="aff" rid="aff6">
<sup>6</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Department of Environmental Sciences, Faculty of Science, Federal University Dutse, P.M.B 7156, Dutse, Nigeria</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Department of Surveying and Geoinformatics, Baze University Abuja, Nigeria</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Department of Geoformation, Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, 81310, Johor Bahru, Malaysia</addr-line>
</aff>
<aff id="aff4">
<label>4</label>
<addr-line>Department of Public Law, Ahmadu Bello University Zaria, Kaduna State, Nigeria</addr-line>
</aff>
<aff id="aff5">
<label>5</label>
<addr-line>Faculty of Law, Baze University Abuja, Nigeria</addr-line>
</aff>
<aff id="aff6">
<label>6</label>
<addr-line>Department of Surveying and Geoinformatics, School of Environmental Technology, Federal Polytechnic Bauchi, Nigeria</addr-line>
</aff>
<pub-date pub-type="epub">
<day>07</day>
<month>02</month>
<year>2023</year>
</pub-date>
<volume>XLVIII-4/W6-2022</volume>
<fpage>371</fpage>
<lpage>377</lpage>
<permissions>
<copyright-statement>Copyright: &#x000a9; 2023 H. A. Umar et al.</copyright-statement>
<copyright-year>2023</copyright-year>
<license license-type="open-access">
<license-p>This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit <ext-link ext-link-type="uri"  xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link></license-p>
</license>
</permissions>
<self-uri xlink:href="https://isprs-archives.copernicus.org/articles/XLVIII-4-W6-2022/371/2023/isprs-archives-XLVIII-4-W6-2022-371-2023.html">This article is available from https://isprs-archives.copernicus.org/articles/XLVIII-4-W6-2022/371/2023/isprs-archives-XLVIII-4-W6-2022-371-2023.html</self-uri>
<self-uri xlink:href="https://isprs-archives.copernicus.org/articles/XLVIII-4-W6-2022/371/2023/isprs-archives-XLVIII-4-W6-2022-371-2023.pdf">The full text article is available as a PDF file from https://isprs-archives.copernicus.org/articles/XLVIII-4-W6-2022/371/2023/isprs-archives-XLVIII-4-W6-2022-371-2023.pdf</self-uri>
<abstract>
<p>This study uses fractal analysis to understand how oil spills are clustered at different scales in Ahoada communities of the Niger Delta region of Nigeria. The ArcGIS software was used in designing the hotspot map of the study area using Kernel density estimation. Results of spatial spill distribution from the Kernel density revealed that Bayelsa, Rivers, and Delta states are the hottest spots for oil spill occurrences and distribution and communities within the Rivers state including Ochebeke, Ukperede, Odieke and Akinima has been widely affected by the spills. The box counting method was employed for understanding clustering associated with oil spills in the area using ArcGIS interface. The method uses the conversion tool embedded in ArcGIS to convert oil spills points into raster. A basic analysis of this fractal plot suggest a dual fractal analysis for oil spill occurrences within the study location. This is evident by a low fractal dimension of 0.419 at distances of 1.1 km. At higher distances above 1.1 km, oil spill occurrences are characterised by a fractal dimension of 1.411. According to the fractal plot, regional and local fractal for oil spill occurrences is defined by a threshold distance of 1.2 km. At scales less than 1.2 km, oil spill occurrences exhibit a fractal dimension of 0.063 while at scales above this distance, the occurrences of oil spill are defined by a fractal of 1.249. A general analysis of fractal for both oil spill types suggests a small fractal dimension values and a more discrete scale compared to the regional scale. The relative low fractal dimension values at discrete scale suggest a high clustering of oil spill locations. This study gives a relative idea about the clustering tendency. This would enable proper remediation to be carried out in the area.</p>
</abstract>
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