Landslide Detection Technique using multidate SPOT Imageries: A case study in Teradomari, Tochio and Shitada Mura, Niigata, Japan

• Main Author: I Nengah Surati Jaya
• Format: Article
• Language: English
• Published: Bogor Agricultural University 2012-11-01
• Series: Jurnal Manajemen Hutan Tropika
• Online Access: http://journal.ipb.ac.id/index.php/jmht/article/view/6104

<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:TargetScreenSize>800x600</o:TargetScreenSize> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoBodyText" style="text-align: justify; text-justify: inter-ideograph; text-indent: 1.0cm;"><em style="mso-bidi-font-style: normal;"><span style="font-size: 9.0pt; font-family: ";Times New Roman";,";serif";; mso-bidi-font-weight: bold;" lang="EN-US">This study describes the use of multitemporal<span style="mso-spacerun: yes;">  </span>principal component analisys (MPCA), vegetation index differencing (VIDN) and<span style="mso-spacerun: yes;">  </span>conventional maximum likelihood classifier (MLC) for<span style="mso-spacerun: yes;">  </span>detecting landslides.<span style="mso-spacerun: yes;">  </span>The study found that the synthetic images derived from stable greenness, delta greenness and delta brightness of MPCA summarized the information of landslides effectively producing accuracy of 88% for Teradomari and 91% for Tochio and Shitada Mura.<span style="mso-spacerun: yes;">  </span>The VIDN provides relatively lower accuracies than those from MPCA, i.e., only 62.5% for Teradomari and 64% for Tochio and Shitada Mura. The MLC method also provided very low user’s accuracy, i.e. 56.9% for Teradomari and 63.7% for Tochio and Shitada Mura but high producer’s accuracies, i.e. 100% for Teradomari and 98.3% for Tochio and Shitada Mura. The study also found that the landsides that could be detected should be more than the size of spatial resolution of the SPOT imagery, i.e. 10 m x 10 m. Detecting landslides using SPOT imagery is more efficient than using only ground survey, providing an <span style="color: black;">efficiency of 2.7.</span> <span style="mso-spacerun: yes;">  </span></span></em></p> <strong><span style="font-size: 10.0pt; font-family: ";Times New Roman";,";serif";; mso-fareast-font-family: ";MS Mincho";; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA;" lang="EN-US">Keywords:</span></strong><em style="mso-bidi-font-style: normal;"><span style="font-size: 10.0pt; font-family: ";Times New Roman";,";serif";; mso-fareast-font-family: ";MS Mincho";; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;" lang="EN-US"> </span></em><span style="font-size: 10.0pt; font-family: ";Times New Roman";,";serif";; mso-fareast-font-family: ";MS Mincho";; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; 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