Delineating pixels of natural hydrocarbon micro-seepage induced alterations and anomalies in overlying soils and sediments in ugwueme, with ASTER data and band ratio technique

Stránka jednoduchej položky
dc.contributor.authorEnoh, Mfoniso Asuquo
dc.contributor.authorAugustine, Ojanikele Willie
dc.contributor.authorChiemelu, Ndukwe Emmanuel
dc.contributor.authorEkwok, Stephen Eguba
dc.contributor.authorAkpan, Anthony E.
dc.contributor.authorEldosouky, Ahmed Mohammed
dc.contributor.authorAlarifi, Saad S.
dc.contributor.authorAndráš, Peter
dc.date.accessioned2025-09-19T08:02:24Z
dc.date.available2025-09-19T08:02:24Z
dc.date.issued2024
dc.descriptionIn: Polish journal of environmental studies. Olsztyn : Hard, 2024. ISSN 1230-1485. Vol. 33, no. 6 (2024), pp. 6015-6024.
dc.description.abstractThe earth’s underlying hydrocarbon-bearing reservoirs frequently leak. These reservoirs leak because of their inadequate sealing, and at high pressure, oil and gas escape vertically or nearly vertically to the earth’s surface as seepage. Micro-seepages on the earth’s surface cause oxidationreduction reactions, which cause anomalies in the soils and sediments beneath them. Remote sensing (RS) and geographic information systems (GIS) are important tools for investigating hydrocarbon micro-seepage-induced changes and anomalies in overlying soil and sediments. In this study, ASTER remote sensing data was adopted to delineate pixels of hydrocarbon micro-seepage-induced anomalies in Ugwueme, south-eastern Nigeria. Band Ratio (BR) was used as a spectral enhancement technique to detect alterations and anomalies in the overlying soil and sediments. ASTER BR of 2/1 improves ferric iron; (5+7)/6 improves clay minerals; (1+4)/(2+3) improves ferrous iron; and 4/(6+9) improves gypsum. The study highlights that BR is an excellent spectral enhancement technique for delineating areas of alterations and anomalies induced by hydrocarbon micro-seepage.
dc.description.sponsorshipRSP2024R496 King Saud University
dc.identifier.doihttps://doi.org/10.15244/pjoes/173446
dc.identifier.issn1230-1485
dc.identifier.issn2083-5906
dc.identifier.urihttps://repo.umb.sk/handle/123456789/842
dc.language.isoen
dc.publisherHard : Olsztyn
dc.rightsCC BY-NC Creative Commons Attribution-NonCommercial 4.0. International
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectzmeny
dc.subjectchanges
dc.subjectanomálie
dc.subjectuhľovodíky
dc.subjecthydrocarbons
dc.titleDelineating pixels of natural hydrocarbon micro-seepage induced alterations and anomalies in overlying soils and sediments in ugwueme, with ASTER data and band ratio technique
dc.typeArticle
dc.typeinfo:eu-repo/semantics/article

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