Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data
The objectives of this work were to examine the applicability of the Dark-Object Subtraction (DOS) atmospheric correction method and water-based index techniques to map wetlands in Dhaka megacity using Landsat 8 data. With the use of both raw data and DOS- corrected imagery, the analysis revealed th...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
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http:http://SunSITE.Informatik.RWTH-Aachen.DE/Publications/CEUR-WS/.
2015
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| Online Access: | http://ceur-ws.org/Vol-1323/ http://hdl.handle.net/20.500.11937/43918 |
| _version_ | 1848756847387869184 |
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| author | Gilmore, S. Saleem, Ashty Dewan, Ashraf |
| author2 | B. Veenendaal |
| author_facet | B. Veenendaal Gilmore, S. Saleem, Ashty Dewan, Ashraf |
| author_sort | Gilmore, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The objectives of this work were to examine the applicability of the Dark-Object Subtraction (DOS) atmospheric correction method and water-based index techniques to map wetlands in Dhaka megacity using Landsat 8 data. With the use of both raw data and DOS- corrected imagery, the analysis revealed that DOS- corrected images performed better in discriminating wetland areas. Furthermore, the Modified Normalised Water Index (MNDWI) was the most superior technique whilst the Normalised Difference Water Index (NDWI) was the least suitable in identifying the spatial locations of wetlands in a rapidly urbanising environment such as Dhaka. |
| first_indexed | 2025-11-14T09:18:42Z |
| format | Conference Paper |
| id | curtin-20.500.11937-43918 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:18:42Z |
| publishDate | 2015 |
| publisher | http:http://SunSITE.Informatik.RWTH-Aachen.DE/Publications/CEUR-WS/. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-439182023-02-27T07:34:28Z Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data Gilmore, S. Saleem, Ashty Dewan, Ashraf B. Veenendaal A. Kealy The objectives of this work were to examine the applicability of the Dark-Object Subtraction (DOS) atmospheric correction method and water-based index techniques to map wetlands in Dhaka megacity using Landsat 8 data. With the use of both raw data and DOS- corrected imagery, the analysis revealed that DOS- corrected images performed better in discriminating wetland areas. Furthermore, the Modified Normalised Water Index (MNDWI) was the most superior technique whilst the Normalised Difference Water Index (NDWI) was the least suitable in identifying the spatial locations of wetlands in a rapidly urbanising environment such as Dhaka. 2015 Conference Paper http://hdl.handle.net/20.500.11937/43918 http://ceur-ws.org/Vol-1323/ http:http://SunSITE.Informatik.RWTH-Aachen.DE/Publications/CEUR-WS/. fulltext |
| spellingShingle | Gilmore, S. Saleem, Ashty Dewan, Ashraf Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data |
| title | Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data |
| title_full | Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data |
| title_fullStr | Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data |
| title_full_unstemmed | Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data |
| title_short | Effectiveness of DOS (Dark-Object Subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with Landsat 8 data |
| title_sort | effectiveness of dos (dark-object subtraction) method and water index techniques to map wetlands in a rapidly urbanising megacity with landsat 8 data |
| url | http://ceur-ws.org/Vol-1323/ http://hdl.handle.net/20.500.11937/43918 |