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Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur

Active microwave has a huge potential in the estimation of soil moisture especially over large areas where the meteorological observations are seldom. The large contrast in dielectric constant between different types of soil is considered as the main factor for measuring the moisture content. This s...

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Main Authors: Hassaballa, Abdalhaleem Abdalla, Althuwaynee, Omar F., Pradhan, Biswajeet
Format: Article
Language:English
Published: Springer 2014
Online Access:http://psasir.upm.edu.my/id/eprint/37596/1/Extraction%20of%20soil%20moisture%20from%20RADARSAT-1%20and%20its%20role%20in%20the%20formation%20of%20the%206%20December%202008%20landslide%20at%20Bukit%20Antarabangsa%2C%20Kuala%20Lumpur.pdf
http://psasir.upm.edu.my/id/eprint/37596/
http://link.springer.com/article/10.1007%2Fs12517-013-0990-6
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spelling my.upm.eprints.375962015-12-16T09:07:16Z http://psasir.upm.edu.my/id/eprint/37596/ Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur Hassaballa, Abdalhaleem Abdalla Althuwaynee, Omar F. Pradhan, Biswajeet Active microwave has a huge potential in the estimation of soil moisture especially over large areas where the meteorological observations are seldom. The large contrast in dielectric constant between different types of soil is considered as the main factor for measuring the moisture content. This study is aimed at the extraction of soil moisture over the areas of Bukit Antarabangsa, Malaysia using active microwave remote sensing technique in order to examine the impact of moisture content dynamically on landslides occurrence, which have been a basic challenge that threaten Bukit Antarabangsa area, particularly in falling of monsoon seasons. This study addressed a specific event that took place in 6 December 2008 due to a very high level of precipitation that resulted in a raise in ground water table causing the occurrence of landslide. One Radarsat-1 image acquired in July 2008 before the landslide was used for generating the moisture content map. The resultant moisture content map showed a reasonable distribution of the moisture concentrated over the forest areas which has previous records landslides. Moreover, it was found that the previous landslide events were within the high moisture zone indicating the presence of high moisture content. Subsequently, three moisture maps were extracted from Landsat-7 ETM+, which were then used for validation process. A statistically based validation technique was used by calculating area under the curve that correlates the high moisture values of three images. In order to validate the Landsat-7 ETM+ moisture content, monthly rainfall data was plotted against the high moisture values derived from three Landsat-7 images. The validation result indicated an acceptable compatibility. The spatial relation between high moisture areas in Landsat-7 ETM+ images along the year resulted in a good fitting in the high–low moisture distribution areas with sensitivity ranged of 60–70 %. Finally, the moisture content map generated by Radarsat-1 was validated using a landslide inventory map. The resultant validation produced an area under curve of 0.704 (70 %). Springer 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37596/1/Extraction%20of%20soil%20moisture%20from%20RADARSAT-1%20and%20its%20role%20in%20the%20formation%20of%20the%206%20December%202008%20landslide%20at%20Bukit%20Antarabangsa%2C%20Kuala%20Lumpur.pdf Hassaballa, Abdalhaleem Abdalla and Althuwaynee, Omar F. and Pradhan, Biswajeet (2014) Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur. Arabian Journal of Geosciences, 7 (7). pp. 2831-2840. ISSN 1866-7511; ESSN: 1866-7538 http://link.springer.com/article/10.1007%2Fs12517-013-0990-6 10.1007/s12517-013-0990-6
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Active microwave has a huge potential in the estimation of soil moisture especially over large areas where the meteorological observations are seldom. The large contrast in dielectric constant between different types of soil is considered as the main factor for measuring the moisture content. This study is aimed at the extraction of soil moisture over the areas of Bukit Antarabangsa, Malaysia using active microwave remote sensing technique in order to examine the impact of moisture content dynamically on landslides occurrence, which have been a basic challenge that threaten Bukit Antarabangsa area, particularly in falling of monsoon seasons. This study addressed a specific event that took place in 6 December 2008 due to a very high level of precipitation that resulted in a raise in ground water table causing the occurrence of landslide. One Radarsat-1 image acquired in July 2008 before the landslide was used for generating the moisture content map. The resultant moisture content map showed a reasonable distribution of the moisture concentrated over the forest areas which has previous records landslides. Moreover, it was found that the previous landslide events were within the high moisture zone indicating the presence of high moisture content. Subsequently, three moisture maps were extracted from Landsat-7 ETM+, which were then used for validation process. A statistically based validation technique was used by calculating area under the curve that correlates the high moisture values of three images. In order to validate the Landsat-7 ETM+ moisture content, monthly rainfall data was plotted against the high moisture values derived from three Landsat-7 images. The validation result indicated an acceptable compatibility. The spatial relation between high moisture areas in Landsat-7 ETM+ images along the year resulted in a good fitting in the high–low moisture distribution areas with sensitivity ranged of 60–70 %. Finally, the moisture content map generated by Radarsat-1 was validated using a landslide inventory map. The resultant validation produced an area under curve of 0.704 (70 %).
format Article
author Hassaballa, Abdalhaleem Abdalla
Althuwaynee, Omar F.
Pradhan, Biswajeet
spellingShingle Hassaballa, Abdalhaleem Abdalla
Althuwaynee, Omar F.
Pradhan, Biswajeet
Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur
author_facet Hassaballa, Abdalhaleem Abdalla
Althuwaynee, Omar F.
Pradhan, Biswajeet
author_sort Hassaballa, Abdalhaleem Abdalla
title Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur
title_short Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur
title_full Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur
title_fullStr Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur
title_full_unstemmed Extraction of soil moisture from RADARSAT-1 and its role in the formation of the 6 December 2008 landslide at Bukit Antarabangsa, Kuala Lumpur
title_sort extraction of soil moisture from radarsat-1 and its role in the formation of the 6 december 2008 landslide at bukit antarabangsa, kuala lumpur
publisher Springer
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/37596/1/Extraction%20of%20soil%20moisture%20from%20RADARSAT-1%20and%20its%20role%20in%20the%20formation%20of%20the%206%20December%202008%20landslide%20at%20Bukit%20Antarabangsa%2C%20Kuala%20Lumpur.pdf
http://psasir.upm.edu.my/id/eprint/37596/
http://link.springer.com/article/10.1007%2Fs12517-013-0990-6
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score 13.211869

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