2018
DOI: 10.4314/wiojms.v17i2.8
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Satellite-derived bathymetry: A case study of Mombasa Port Channel and its approaches, Kenya

Abstract: Aims and scope: The Western Indian Ocean Journal of Marine Science provides an avenue for the wide dissemination of high quality research generated in the Western Indian Ocean (WIO) region, in particular on the sustainable use of coastal and marine resources. This is central to the goal of supporting and promoting sustainable coastal development in the region, as well as contributing to the global base of marine science. The journal publishes original research articles dealing with all aspects of marine scienc… Show more

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Cited by 4 publications
(6 citation statements)
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“…Seabed surveys in the port areas were carried out in various ways. Currently, the most frequently used measurement methods include surveys using bathymetric and terrestrial LiDAR mounted on a manned aircraft [48,49], analysis of high-resolution multispectral imagery from satellites such as IKONOS, QuickBird, and WorldView [50,51], or moderate-resolution multispectral images from Landsat, and Sentinel satellites [52][53][54] or bathymetric measurements realized with the use of manned hydrographic vessels equipped with hydroacoustic devices [55]. It should be emphasized that in the available literature, it is impossible to find USV (except for one publication [2]) that would perform such surveys as in the presented article.…”
Section: Discussionmentioning
confidence: 99%
“…Seabed surveys in the port areas were carried out in various ways. Currently, the most frequently used measurement methods include surveys using bathymetric and terrestrial LiDAR mounted on a manned aircraft [48,49], analysis of high-resolution multispectral imagery from satellites such as IKONOS, QuickBird, and WorldView [50,51], or moderate-resolution multispectral images from Landsat, and Sentinel satellites [52][53][54] or bathymetric measurements realized with the use of manned hydrographic vessels equipped with hydroacoustic devices [55]. It should be emphasized that in the available literature, it is impossible to find USV (except for one publication [2]) that would perform such surveys as in the presented article.…”
Section: Discussionmentioning
confidence: 99%
“…Análisis cuantitativo de las batimetrías según el estándar OIH S-44 Table 5. Quantitative analysis of bathymetric data based on IHO-S-44 La determinación de la SDB a través del método empírico de Stumpf obtuvo un R 2 = 0.80 respecto los datos tomados in situ; el resultado de este estudio presentó mejor ajuste frente a los reportados por (Setiawan et al 2017;Ashphaq, 2018;Ekpa & Ojinnaka, 2018;Tang & Mahmud, 2018); por otro lado, presenta gran similitud al valor del ajuste para análisis reportados por (Jagalingam et al 2015;Pushparaj & Hegde 2016;Kimeli et al 2018;Putri et al 2018); del mismo modo, se pudo evidenciar que el valor de la reflectancia de la banda azul y verde aumenta cuando las aguas se vuelven poco profundas; por ende, se presenta una relación inversamente proporcional en relación a la profundidad (Gao, 2009); otro aspecto a considerar es incluir en el análisis la banda 1 (Coastal/Aerosol) del Landsat 8, ya que cumple con el rango espectral de aplicación y se ha visto que mejora sustancialmente la estimación de la profundidad en aguas costeras (Vinayaraj et al 2016;Kabiri, 2017).…”
Section: Discussionunclassified
“…El RMSE y MAE alcanzaron un valor de 1.49 y 2.22 m respectivamente; el RMSE fue similar al reportado por (Kimeli et al 2018) pero superiores a los registrados por (Jagalingam et al 2015); el MAE por su parte fue superior al reportado por (Tang & Mahmud, 2018); otras SDB determinadas con imágenes de mediana resolución como las del Sentinel 2 reportaron valores similares (Chybicki, 2017;Evagorou et al 2019); las variaciones temporales y condiciones ambientales no favorables en la imagen son factores que pueden aumentar el error de la estimación de la SDB (Bramante et al 2013;Pushparaj & Hegde, 2016;Evagorou et al 2019).…”
Section: Discussionunclassified
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