Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GIS
This study concerned the assessment of changes in the coastline of Kavvayi beach and its nine islands in a tropical coastal wetland using remote sensing (RS) data and geographic information systems (GIS), as this sedimentary environment is still poorly characterized. The satellite data used were fro...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/2/244 |
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| author | Girish Gopinath Muhamed Fasil Chettiyam Thodi Udayar Pillai Surendran Pranav Prem Jesiya Nalukudi Parambil Abed Alataway Ahmed A. Al-Othman Ahmed Z. Dewidar Mohamed A. Mattar |
| author_facet | Girish Gopinath Muhamed Fasil Chettiyam Thodi Udayar Pillai Surendran Pranav Prem Jesiya Nalukudi Parambil Abed Alataway Ahmed A. Al-Othman Ahmed Z. Dewidar Mohamed A. Mattar |
| author_sort | Girish Gopinath |
| collection | DOAJ |
| description | This study concerned the assessment of changes in the coastline of Kavvayi beach and its nine islands in a tropical coastal wetland using remote sensing (RS) data and geographic information systems (GIS), as this sedimentary environment is still poorly characterized. The satellite data used were from LANDSAT images (30 m spatial resolution) (MSS—volume 5, TM, ETM, and ETM+ volume 6) for the period of the last 25 years (1990 to 2014). Band 5 in Landsat (MSS) and band 6 (ETM 24- OLI) were used because they clearly distinguish the boundaries between land and water. The Digital Shoreline Analysis System (DSAS) was used to understand shoreline changes such as erosion and accretion processes by calculating the net shift in shoreline (NSM), end point rate (EPR), and linear regression rate (LRR) for the period of 25 years. The results showed significant changes over the studied period, leading to erosion and accretion. Coastal processes had an impact in the period from 2005 to 2014, leading to the development of a new island in the northern part of the wetland due to the construction of a new breakwater. In addition, the causes of the shoreline changes on the islands, including anomalies and the formation of new structures in the wetland, were investigated and discussed. These analyses confirmed that the islands studied were subjected to marine transgression and vice versa. Among this, Kavvayi was subject to marine transgression over the period, and Achanthurti Island showed erosion to a lesser extent. This can be considered as a feature of wetlands in combating sea level rise at local levels and possible reasons for the changes along with the coastal zone management plans were also discussed. |
| first_indexed | 2024-03-09T11:01:03Z |
| format | Article |
| id | doaj.art-4ea43b2b0bd44ece8d7318e968e2ecd0 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T11:01:03Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-4ea43b2b0bd44ece8d7318e968e2ecd02023-12-01T01:15:06ZengMDPI AGWater2073-44412023-01-0115224410.3390/w15020244Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GISGirish Gopinath0Muhamed Fasil Chettiyam Thodi1Udayar Pillai Surendran2Pranav Prem3Jesiya Nalukudi Parambil4Abed Alataway5Ahmed A. Al-Othman6Ahmed Z. Dewidar7Mohamed A. Mattar8Centre for Water Resources Development and Management (CWRDM), Kozhikode 673571, Kerala, IndiaCentre for Water Resources Development and Management (CWRDM), Kozhikode 673571, Kerala, IndiaCentre for Water Resources Development and Management (CWRDM), Kozhikode 673571, Kerala, IndiaCentre for Water Resources Development and Management (CWRDM), Kozhikode 673571, Kerala, IndiaCentre for Water Resources Development and Management (CWRDM), Kozhikode 673571, Kerala, IndiaPrince Sultan Bin Abdulaziz International Prize for Water Chair, Prince Sultan Institute for Environmental, Water and Desert Research, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Agricultural Engineering, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi ArabiaPrince Sultan Bin Abdulaziz International Prize for Water Chair, Prince Sultan Institute for Environmental, Water and Desert Research, King Saud University, Riyadh 11451, Saudi ArabiaPrince Sultan Bin Abdulaziz International Prize for Water Chair, Prince Sultan Institute for Environmental, Water and Desert Research, King Saud University, Riyadh 11451, Saudi ArabiaThis study concerned the assessment of changes in the coastline of Kavvayi beach and its nine islands in a tropical coastal wetland using remote sensing (RS) data and geographic information systems (GIS), as this sedimentary environment is still poorly characterized. The satellite data used were from LANDSAT images (30 m spatial resolution) (MSS—volume 5, TM, ETM, and ETM+ volume 6) for the period of the last 25 years (1990 to 2014). Band 5 in Landsat (MSS) and band 6 (ETM 24- OLI) were used because they clearly distinguish the boundaries between land and water. The Digital Shoreline Analysis System (DSAS) was used to understand shoreline changes such as erosion and accretion processes by calculating the net shift in shoreline (NSM), end point rate (EPR), and linear regression rate (LRR) for the period of 25 years. The results showed significant changes over the studied period, leading to erosion and accretion. Coastal processes had an impact in the period from 2005 to 2014, leading to the development of a new island in the northern part of the wetland due to the construction of a new breakwater. In addition, the causes of the shoreline changes on the islands, including anomalies and the formation of new structures in the wetland, were investigated and discussed. These analyses confirmed that the islands studied were subjected to marine transgression and vice versa. Among this, Kavvayi was subject to marine transgression over the period, and Achanthurti Island showed erosion to a lesser extent. This can be considered as a feature of wetlands in combating sea level rise at local levels and possible reasons for the changes along with the coastal zone management plans were also discussed.https://www.mdpi.com/2073-4441/15/2/244shoreline changeland-water systemerosionaccretionKavvayi wetlandDSAS |
| spellingShingle | Girish Gopinath Muhamed Fasil Chettiyam Thodi Udayar Pillai Surendran Pranav Prem Jesiya Nalukudi Parambil Abed Alataway Ahmed A. Al-Othman Ahmed Z. Dewidar Mohamed A. Mattar Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GIS Water shoreline change land-water system erosion accretion Kavvayi wetland DSAS |
| title | Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GIS |
| title_full | Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GIS |
| title_fullStr | Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GIS |
| title_full_unstemmed | Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GIS |
| title_short | Long-Term Shoreline and Islands Change Detection with Digital Shoreline Analysis Using RS Data and GIS |
| title_sort | long term shoreline and islands change detection with digital shoreline analysis using rs data and gis |
| topic | shoreline change land-water system erosion accretion Kavvayi wetland DSAS |
| url | https://www.mdpi.com/2073-4441/15/2/244 |
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