Analysis of Upwelling in the Southern Makassar Strait in 2015 Using Aqua-Modis Satellite Image
Gandhi Napitupulu,
Susanna Nurdjaman,
Naffisa Adyan Fekranie,
Totok Suprijo,
Luki Subehi
Issue:
Volume 11, Issue 4, August 2022
Pages:
64-70
Received:
4 July 2022
Accepted:
15 August 2022
Published:
29 September 2022
DOI:
10.11648/j.wros.20221104.11
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Abstract: Because of the occurrence of upwelling during the eastern season, the waters to the south of Makassar Strait are a location that is relatively rich in organic materials. This study aimed to examine upwelling area development and distribution patterns in the southern Makassar Strait. This investigation employed sea surface temperature and chlorophyll-a data from the 2015 Level 3 Modis picture. The findings demonstrated that the southern Makassar Strait upwelling phenomena persist throughout the year, with the most substantial upwelling occurring in August and disappearing in October. A decrease in sea surface temperature and an increase in chlorophyll-a content were indicators of an upwelling. The upwelling begins in the southern Makassar strait and spreads to the southwest, according to wind speed and direction analysis.
Abstract: Because of the occurrence of upwelling during the eastern season, the waters to the south of Makassar Strait are a location that is relatively rich in organic materials. This study aimed to examine upwelling area development and distribution patterns in the southern Makassar Strait. This investigation employed sea surface temperature and chlorophyl...
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Assessment of Polynuclear Aromatic Hydrocarbon in Marine Sediments Delta State, Southern Nigeria
Umudi Ese Queen,
Umudi Ogheneyoma Peter
Issue:
Volume 11, Issue 4, August 2022
Pages:
71-75
Received:
26 August 2022
Accepted:
21 September 2022
Published:
22 November 2022
DOI:
10.11648/j.wros.20221104.12
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Abstract: Sediments from different zones in southern Nigeria were analyzed for the composition of their Polynuclear aromatic hydrocarbon (PAHs). The purpose of this study was to provide information on the presence of PAHs distribution in these sediments for managing waste environment and preserving the health of aquaculture and humans. This was done for 16 PAHS collected from Warri (PC) petrochemicals, Burutu (FS) Finishing, Bomadi (FA) farming and Omasuomar. (CN) – Natural field. A mixture of acetone / dichloromethane / n-hexane was used for the soxhlet extraction of PAHS from the sediment samples. This was done using gas chromatography –mass spectrometry. The concentrations of E16PAH Varied from 0.00-2. 411, 0.00-0.848, 000-1.695, and 0.00-0.717 μglg for sediments from these zones respectively. The benzo (a) pyrene (BaA) concentration in all samples were below the stated limit of 0.7 μgil for surface and sediment. Since it is an index for the contamination of PAHS. There is need for caution in the discharge of waste, use of pesticides and herbicides since sediment is the final sink before transfer in the food chain. The sources indicated PAHs originated from liquid fossil fuel burning, combustion of wood, biomass and high temperature processes and pyrogenic sources. Therefore, attention should be paid on marine ecosystem by authorities.
Abstract: Sediments from different zones in southern Nigeria were analyzed for the composition of their Polynuclear aromatic hydrocarbon (PAHs). The purpose of this study was to provide information on the presence of PAHs distribution in these sediments for managing waste environment and preserving the health of aquaculture and humans. This was done for 16 P...
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