Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique
<p>This study demonstrates the use of ASTER data to map the siltation of the Al-Khod Dam constructed at the lower reaches of Samail Catchment area, north Muscat, Sultanate of Oman. In this study, the decorrelated image of spectral bands 6, 3, and 1 clearly discriminated the distribution of sil...
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| مؤلفون آخرون: | , |
| منشور في: |
2022
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| _version_ | 1864513566725373952 |
|---|---|
| author | Sankaran Rajendran (14152830) |
| author2 | Sobhi Nasir (14152833) Khalifa Al Jabri (14152836) |
| author2_role | author author |
| author_facet | Sankaran Rajendran (14152830) Sobhi Nasir (14152833) Khalifa Al Jabri (14152836) |
| author_role | author |
| dc.creator.none.fl_str_mv | Sankaran Rajendran (14152830) Sobhi Nasir (14152833) Khalifa Al Jabri (14152836) |
| dc.date.none.fl_str_mv | 2022-11-22T21:17:08Z |
| dc.identifier.none.fl_str_mv | 10.1038/s41598-020-67137-9 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Mapping_and_accuracy_assessment_of_siltation_of_recharge_dams_using_remote_sensing_technique/21598176 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Environmental engineering Environmental sciences Climate change impacts and adaptation ASTER Data Siltation Mapping Remote Sensing Spectral Angle Mapper (SAM) |
| dc.title.none.fl_str_mv | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p>This study demonstrates the use of ASTER data to map the siltation of the Al-Khod Dam constructed at the lower reaches of Samail Catchment area, north Muscat, Sultanate of Oman. In this study, the decorrelated image of spectral bands 6, 3, and 1 clearly discriminated the distribution of siltation. The occurrence of siltation is confirmed by the detection of minerals using the VNIR-SWIR bands by the Spectral Angle Mapper (SAM) method. In addition, the siltation of the dam is studied for the years 1987 to 2018 using Landsat satellite images. Interpretation of images showed a gradual increase of the siltation. Mapping accuracy for the occurrence of siltation is assessed by a confusion matrix which produced an overall accuracy of 97.88% and Kappa coefficient of 0.98 in the Maximum Likelihood method. Results of image analyses are verified in the field and confirmed through laboratory analyses. The study of spectral absorption characters of field samples using a Portable Infrared Mineral Analyzer (PIMA) showed the presence of OH molecule bearing minerals (clays, serpentines, etc.) and carbonate minerals (calcite and dolomite) in the silt deposits. The occurrence of these minerals is confirmed further by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) analyses.</p><h2>Other Information</h2> <p> Published in: Scientific Reports<br> License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1038/s41598-020-67137-9" target="_blank">http://dx.doi.org/10.1038/s41598-020-67137-9</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_cedc552fb693ab9303cc0bdebb711162 |
| identifier_str_mv | 10.1038/s41598-020-67137-9 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/21598176 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Mapping and accuracy assessment of siltation of recharge dams using remote sensing techniqueSankaran Rajendran (14152830)Sobhi Nasir (14152833)Khalifa Al Jabri (14152836)EngineeringEnvironmental engineeringEnvironmental sciencesClimate change impacts and adaptationASTER DataSiltation MappingRemote SensingSpectral Angle Mapper (SAM)<p>This study demonstrates the use of ASTER data to map the siltation of the Al-Khod Dam constructed at the lower reaches of Samail Catchment area, north Muscat, Sultanate of Oman. In this study, the decorrelated image of spectral bands 6, 3, and 1 clearly discriminated the distribution of siltation. The occurrence of siltation is confirmed by the detection of minerals using the VNIR-SWIR bands by the Spectral Angle Mapper (SAM) method. In addition, the siltation of the dam is studied for the years 1987 to 2018 using Landsat satellite images. Interpretation of images showed a gradual increase of the siltation. Mapping accuracy for the occurrence of siltation is assessed by a confusion matrix which produced an overall accuracy of 97.88% and Kappa coefficient of 0.98 in the Maximum Likelihood method. Results of image analyses are verified in the field and confirmed through laboratory analyses. The study of spectral absorption characters of field samples using a Portable Infrared Mineral Analyzer (PIMA) showed the presence of OH molecule bearing minerals (clays, serpentines, etc.) and carbonate minerals (calcite and dolomite) in the silt deposits. The occurrence of these minerals is confirmed further by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) analyses.</p><h2>Other Information</h2> <p> Published in: Scientific Reports<br> License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1038/s41598-020-67137-9" target="_blank">http://dx.doi.org/10.1038/s41598-020-67137-9</a></p>2022-11-22T21:17:08ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1038/s41598-020-67137-9https://figshare.com/articles/journal_contribution/Mapping_and_accuracy_assessment_of_siltation_of_recharge_dams_using_remote_sensing_technique/21598176CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/215981762022-11-22T21:17:08Z |
| spellingShingle | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique Sankaran Rajendran (14152830) Engineering Environmental engineering Environmental sciences Climate change impacts and adaptation ASTER Data Siltation Mapping Remote Sensing Spectral Angle Mapper (SAM) |
| status_str | publishedVersion |
| title | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique |
| title_full | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique |
| title_fullStr | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique |
| title_full_unstemmed | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique |
| title_short | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique |
| title_sort | Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique |
| topic | Engineering Environmental engineering Environmental sciences Climate change impacts and adaptation ASTER Data Siltation Mapping Remote Sensing Spectral Angle Mapper (SAM) |