Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability Index
Buenaventura on the Colombian Pacific coast has experienced a wide range of threats, mainly due to the effects of coastal erosion and flooding. Globally, millions of people will experience increased vulnerability in the coming decades due to climate change. The change in the coastline (1986–2020) ov...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | ISPRS International Journal of Geo-Information |
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| Online Access: | https://www.mdpi.com/2220-9964/11/11/568 |
| _version_ | 1827644420445437952 |
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| author | Jose Eduardo Fuentes Robin Alexis Olaya Cesar Edwin Garcia |
| author_facet | Jose Eduardo Fuentes Robin Alexis Olaya Cesar Edwin Garcia |
| author_sort | Jose Eduardo Fuentes |
| collection | DOAJ |
| description | Buenaventura on the Colombian Pacific coast has experienced a wide range of threats, mainly due to the effects of coastal erosion and flooding. Globally, millions of people will experience increased vulnerability in the coming decades due to climate change. The change in the coastline (1986–2020) over time was analyzed with remote sensors and the Digital Shoreline Analysis System (DSAS) in conjunction with GIS. A total of 16 indicators were selected to quantitatively evaluate exposure, sensitivity, and adaptive capacity to construct a composite vulnerability index (COVI). The endpoint rate (EPR) of the change in the coastline was estimated. The results showed that 35% of the study area was stable, 18% of the coastline experienced erosion processes, and 47% experienced accretion. The COVI analysis revealed that coastal watersheds show great spatial heterogeneity; 31.4% of the area had moderate vulnerability levels, 26.5% had low vulnerability levels, and 41.9% had high vulnerability levels. This analysis revealed that the watersheds located in the northern (Málaga Bay) and central (Anchicaya, Cajambre, and Rapposo basins) parts of the coastal zone were more vulnerable than the other areas. |
| first_indexed | 2024-03-09T18:18:23Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2220-9964 |
| language | English |
| last_indexed | 2024-03-09T18:18:23Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ISPRS International Journal of Geo-Information |
| spelling | doaj.art-298d5866d12f42819135944608b392b32023-11-24T08:31:13ZengMDPI AGISPRS International Journal of Geo-Information2220-99642022-11-01111156810.3390/ijgi11110568Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability IndexJose Eduardo Fuentes0Robin Alexis Olaya1Cesar Edwin Garcia2AGESAT Research Group, Geography Department, Universidad del Valle, Cali 760031, ColombiaSchool of Civil and Geomatics Engineering, Universidad del Valle, Cali 760031, ColombiaSchool of Civil and Geomatics Engineering, Universidad del Valle, Cali 760031, ColombiaBuenaventura on the Colombian Pacific coast has experienced a wide range of threats, mainly due to the effects of coastal erosion and flooding. Globally, millions of people will experience increased vulnerability in the coming decades due to climate change. The change in the coastline (1986–2020) over time was analyzed with remote sensors and the Digital Shoreline Analysis System (DSAS) in conjunction with GIS. A total of 16 indicators were selected to quantitatively evaluate exposure, sensitivity, and adaptive capacity to construct a composite vulnerability index (COVI). The endpoint rate (EPR) of the change in the coastline was estimated. The results showed that 35% of the study area was stable, 18% of the coastline experienced erosion processes, and 47% experienced accretion. The COVI analysis revealed that coastal watersheds show great spatial heterogeneity; 31.4% of the area had moderate vulnerability levels, 26.5% had low vulnerability levels, and 41.9% had high vulnerability levels. This analysis revealed that the watersheds located in the northern (Málaga Bay) and central (Anchicaya, Cajambre, and Rapposo basins) parts of the coastal zone were more vulnerable than the other areas.https://www.mdpi.com/2220-9964/11/11/568coastal vulnerability indexcoastal erosionshoreline changeGISremote sensingcoastal watersheds |
| spellingShingle | Jose Eduardo Fuentes Robin Alexis Olaya Cesar Edwin Garcia Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability Index ISPRS International Journal of Geo-Information coastal vulnerability index coastal erosion shoreline change GIS remote sensing coastal watersheds |
| title | Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability Index |
| title_full | Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability Index |
| title_fullStr | Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability Index |
| title_full_unstemmed | Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability Index |
| title_short | Evaluation of Coastal Erosion in the Watersheds of Municipality of Buenaventura, Colombia: Using Geospatial Techniques and the Composite Vulnerability Index |
| title_sort | evaluation of coastal erosion in the watersheds of municipality of buenaventura colombia using geospatial techniques and the composite vulnerability index |
| topic | coastal vulnerability index coastal erosion shoreline change GIS remote sensing coastal watersheds |
| url | https://www.mdpi.com/2220-9964/11/11/568 |
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