Opak and Bogowonto Coastal Inlet Sand Spit Morphodynamics using Landsat and Sentinel Satellite Images

Rizal Fadlan Abida, Totok Suprijo, Budhy Soeksmantono

Abstract

Sand spits are elongated sand deposits on the beach that often form at the inlet or the headland’s tip. The hydrodynamics of the river flow, waves, storm surge, and tide affect the sand spit formation, which was created by the longshore transport along the coast. Bogowonto and Opak inlets are located in southern coastal Java facing directly to the Indian ocean where micro-tidal, waves, and river flow affecting both inlets, are chosen for this case study. Morphodynamics analysis of sand spit using Landsat 7 and 8, Sentinel 2 image from 2000 to 2020, coastline identification using Modified Normalized Different Water Index (mNDWI). In November 2007 and October 2013, Opak Inlet migratory routes were detected, and closures related to the east season occurred at both of them. Inlet tend to close occur on east season during July until November.

Keywords

sand spit; mNDWI; Opak; Bogowonto; closure; inlet

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References

Anh, N.Q.D., Tanaka, H., Tam, H.S., Tinh, N.X., Tung, T.T., & Viet, N.T. (2020). Comprehensive study of the sand spit evolution at tidal inlets in the central coast of Vietnam. Journal of Marine Science and Engineering, 8(9). https://doi.org/10.3390/JMSE8090722

Anh, N.Q.D., Tanaka, H., Tinh, N.X., & Viet, N.T. (2020). Sand spit morphological evolution at tidal inlets by using satellite images analysis: Two case studies in Vietnam. Journal of Science and Technology in Civil Engineering (STCE) - NUCE, 14(2), 17–27. https://doi.org/10.31814/stce.nuce2020-14(2)-02

Bhakty, T.E., Swasono, A.H., Yuwono, N., Ghalizhan, A.F., & Widyasari, T. (2021). Determination of the length of Bogowonto double jetty as the river mouth stabilization. IOP Conference Series: Earth and Environmental Science, 930(1). https://doi.org/10.1088/1755-1315/930/1/012027

Chrysanti, A., Bagus Adityawan, M., Widyaningtyas, Pramono Yakti, B., Nugroho, J., Zain, K., Haryanto, I., Sulaiman, M., Kurniawan, A., & Tanaka, H. (2019). Prediction of shoreline change using a numerical model: case of the Kulon Progo Coast, Central Java. MATEC Web of Conferences, 270, 04023. https://doi.org/10.1051/matecconf/201927004023

Escudero, M., Silva, R., Hesp, P.A., & Mendoza, E. (2019). Morphological evolution of the sandspit at Tortugueros Beach, Mexico. Marine Geology, 407, 16–31. https://doi.org/10.1016/j.margeo.2018.10.002

García-Rubio, G., Huntley, D., & Russell, P. (2015). Evaluating shoreline identification using optical satellite images. Marine Geology, 359, 96–105. https://doi.org/10.1016/j.margeo.2014.11.002

Konlechner, T. M., Kennedy, D. M., O’Grady, J. J., Leach, C., Ranasinghe, R., Carvalho, R. C., Luijendijk, A. P., McInnes, K. L., & Ierodiaconou, D. (2020). Mapping spatial variability in shoreline change hotspots from satellite data; a case study in southeast Australia. Estuarine. Coastal and Shelf Science, 246. https://doi.org/10.1016/j.ecss.2020.107018

Lawson, S. K., Tanaka, H., Udo, K., Hiep, N. T., & Tinh, N. X. (2021). Morphodynamics and evolution of estuarine sandspits along the bight of benin coast, West Africa. Water (Switzerland), 13(21). https://doi.org/10.3390/w13212977

Lu, J., Han, G., Xia, C., Chen, Z., Tong, C., Song, Z., Teng, Y., & Qiao, F. (2020). Sediment dynamics near a sandy spit with wave-induced coastal currents. Continental Shelf Research, 193. https://doi.org/10.1016/j.csr.2019.104033

Roca, M., Navarro, G., García-Sanabria, J., & Caballero, I. (2022). Monitoring Sand Spit Variability Using Sentinel-2 and Google Earth Engine in a Mediterranean Estuary. Remote Sensing, 14(10). https://doi.org/10.3390/rs14102345

Saengsupavanich, C. (2021). Morphological Evolution of Sand Spits in Thailand. Marine Geodesy, 44(5), 432–453. https://doi.org/10.1080/01490419.2021.1893873

Vos, K., Harley, M. D., Splinter, K. D., Simmons, J. A., & Turner, I. L. (2019). Sub-annual to multi-decadal shoreline variability from publicly available satellite imagery. Coastal Engineering, 150, 160–174. https://doi.org/10.1016/j.coastaleng.2019.04.004

Wang, Y.-H. (1980). SATELLITE APPLICATIONS ON A COASTAL INLET STABILITY STUDY. Coastal Engineering.

Xu, H. (2006). Modification of normalized difference water index (NDWI) to enhance open water features in remotely sensed imagery. International Journal of Remote Sensing, 27(14), 3025–3033. https://doi.org/10.1080/01431160600589179

DOI: http://dx.doi.org/10.15578/segara.v18i3.11918