Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, Bangladesh
Land use land cover change (LULC) significantly impacts urban sustainability, urban planning, climate change, natural resource management, and biodiversity. The Chattogram Metropolitan Area (CMA) has been going through rapid urbanization, which has impacted the LULC transformation and accelerated th...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023084530 |
| _version_ | 1797429943852859392 |
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| author | Jayanta Biswas Md Abu Jobaer Salman F. Haque Md Samiul Islam Shozib Zamil Ahamed Limon |
| author_facet | Jayanta Biswas Md Abu Jobaer Salman F. Haque Md Samiul Islam Shozib Zamil Ahamed Limon |
| author_sort | Jayanta Biswas |
| collection | DOAJ |
| description | Land use land cover change (LULC) significantly impacts urban sustainability, urban planning, climate change, natural resource management, and biodiversity. The Chattogram Metropolitan Area (CMA) has been going through rapid urbanization, which has impacted the LULC transformation and accelerated the growth of urban sprawl and unplanned development. To map those urban sprawls and natural resources depletion, this study aims to monitor the LULC change using Landsat satellite imagery from 2003 to 2023 in the cloud-based remote sensing platform Google Earth Engine (GEE). LULC has been classified into five distinct classes: waterbody, build-up, bare land, dense vegetation, and cropland, employing four machine learning algorithms (random forest, gradient tree boost, classification & regression tree, and support vector machine) in the GEE platform. The overall accuracy (kappa statistics) and the receiver operating characteristic (ROC) curve have demonstrated satisfactory results. The results indicate that the CART model outperforms other LULC models when considering efficiency and accuracy in the designated study region. The analysis of LULC conversions revealed notable trends, patterns, and magnitudes across all periods: 2003–2013, 2013–2023, and 2003–2023. The expansion of unregulated built-up areas and the decline of croplands emerged as primary concerns. However, there was a positive indication of a significant increase in dense vegetation within the study area over the 20 years. |
| first_indexed | 2024-03-09T09:20:16Z |
| format | Article |
| id | doaj.art-de436deccf4b4366bba33e2aec781e81 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-09T09:20:16Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-de436deccf4b4366bba33e2aec781e812023-12-02T07:01:36ZengElsevierHeliyon2405-84402023-11-01911e21245Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, BangladeshJayanta Biswas0Md Abu Jobaer1Salman F. Haque2Md Samiul Islam Shozib3Zamil Ahamed Limon4Corresponding author.; Urban and Rural Planning Discipline, Khulna University, Khulna, 9208, BangladeshUrban and Rural Planning Discipline, Khulna University, Khulna, 9208, BangladeshUrban and Rural Planning Discipline, Khulna University, Khulna, 9208, BangladeshUrban and Rural Planning Discipline, Khulna University, Khulna, 9208, BangladeshUrban and Rural Planning Discipline, Khulna University, Khulna, 9208, BangladeshLand use land cover change (LULC) significantly impacts urban sustainability, urban planning, climate change, natural resource management, and biodiversity. The Chattogram Metropolitan Area (CMA) has been going through rapid urbanization, which has impacted the LULC transformation and accelerated the growth of urban sprawl and unplanned development. To map those urban sprawls and natural resources depletion, this study aims to monitor the LULC change using Landsat satellite imagery from 2003 to 2023 in the cloud-based remote sensing platform Google Earth Engine (GEE). LULC has been classified into five distinct classes: waterbody, build-up, bare land, dense vegetation, and cropland, employing four machine learning algorithms (random forest, gradient tree boost, classification & regression tree, and support vector machine) in the GEE platform. The overall accuracy (kappa statistics) and the receiver operating characteristic (ROC) curve have demonstrated satisfactory results. The results indicate that the CART model outperforms other LULC models when considering efficiency and accuracy in the designated study region. The analysis of LULC conversions revealed notable trends, patterns, and magnitudes across all periods: 2003–2013, 2013–2023, and 2003–2023. The expansion of unregulated built-up areas and the decline of croplands emerged as primary concerns. However, there was a positive indication of a significant increase in dense vegetation within the study area over the 20 years.http://www.sciencedirect.com/science/article/pii/S2405844023084530Land use land cover (LULC)Urban sustainabilityMachine learningGoogle Earth EngineChattogram |
| spellingShingle | Jayanta Biswas Md Abu Jobaer Salman F. Haque Md Samiul Islam Shozib Zamil Ahamed Limon Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, Bangladesh Heliyon Land use land cover (LULC) Urban sustainability Machine learning Google Earth Engine Chattogram |
| title | Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, Bangladesh |
| title_full | Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, Bangladesh |
| title_fullStr | Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, Bangladesh |
| title_full_unstemmed | Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, Bangladesh |
| title_short | Mapping and monitoring land use land cover dynamics employing Google Earth Engine and machine learning algorithms on Chattogram, Bangladesh |
| title_sort | mapping and monitoring land use land cover dynamics employing google earth engine and machine learning algorithms on chattogram bangladesh |
| topic | Land use land cover (LULC) Urban sustainability Machine learning Google Earth Engine Chattogram |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023084530 |
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