000			01668nam a22002537a 4500
003			ZW-GwMSU
005			20230502113013.0
008			230502b |||||||| |||| 00| 0 eng d
040			_aMSU _cMSU _erda
100			_aNONOMURA, Atsuko
245			_aRegional extraction of flexural-toppled slopes in epicentral regions of subduction earthquakes along the Nankai Trough using DEMs
264			_aVerlag _bSpringer _c2013
336			_2rdacontent _atext _btxt
337			_2rdamedia _aunmediated _bn
338			_2rdacarrier _avolume _bnc
440			_aEnvironmental earth services _vVolume , number ,
520			_aIn the epicentral region of subduction earthquakes, large-scale landslides are triggered by strong shaking of slopes weakened by flexural toppling. The distribution of flexural-toppled slopes is the primary information for predicting and mitigating landslide damage beforehand. This study proposes and tests a simple algorithm for extracting flexural-toppled slopes on a regional basis from a 10-m resolution digital elevation model by windows of two sizes. Local relief is extracted with a large window (200 × 200 pixels), and microtopography is extracted with a small window (3 × 3 pixels). The algorithm was derived from the region of the Kanagi-kuzure landslide in Shikoku, and tested at Aka-kuzure landslide in Honshu in Japan. Both areas are underlain by strongly tilted sedimentary rocks in epicentral regions of subduction earthquakes along the Nankai Trough.
650			_aDEM
650			_aMicrotopography
650			_atoppling
700			_aHASEGAWA, Shuichi
856			_uhttps://doi.org/10.1007/s12665-012-1722-z
942			_2lcc _cJA
999			_c161926 _d161926