Magnitude and frequency of lahars and lahar-runout flows in the Toutle-Cowlitz River system

Abstract

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Volcaniclastic debris-flow occurrences in the Campania region (Southern Italy) and their relation to Holocene–Late Pleistocene pyroclastic fall deposits: implications for large-scale hazard mapping

“…Zanchetta et al 2004b). The clay content is generally low (Zanchetta et al 2003;2004a, b;Sulpizio et al 2006), and flows can be classified as non-cohesive debris flows (sensu Scott 1989;Vallance and Scott 1997).…”

“…Lowe et al 1986;Newhall and Punongbayan 1996;Scott 1989;Scott et al 1995Scott et al , 2001Pareschi et al 2000a;Pierson 1985Pierson , 1995Capra et al 2004;Macías et al 2004). The recurrence of volcanic debris flows usually increases during, and shortly after, an eruptive event (e.g.…”

Dinamika pengendapan lahar permukaan pada alur-alur lembah di bagian selatan Gunung Api Merapi, Yogyakarta

“…Aliran rombakan sendiri terdiri atas: (1) fase menerus (fase matrik atau fl uida) yang tersusun oleh campuran air dan partikel dengan diameter <2 mm, dan (2) fase butiran kasar berdiameter >2 mm (Fisher, 1971(Fisher, dan 1983Scott, 1988). Dengan demikian, walaupun ukuran butirnya menerus dari lempung ke bongkah, namun secara konseptual selalu mempertimbangkan sifat-sifat konsentrasinya yang tinggi (ct. kekentalan, densitas, dan regangan aliran).…”

A Preliminary Study for Predicting a Damage Range of Pyroclastic Flows, Lahars, and Volcanic Flood caused by Mt. Baekdusan Eruption

“…화산이류는 도로, 전기, 광산, 주거지 등의 시설물을 파괴하며, 생태계의 변란, 토양침식, 식수 오염 그리 고 냉해 등 악순환을 초래할 가능성이 매우 높다 (Yun, 2010). 또한, 화산성홍수의 경우 화산이류에 비 해 강도와 점성이 약하지만 난류와 입자 상호작용에 의해 부서진 파편들과 높은 유사(sediment loads)를 이동시켜 더 넓은 범위로 피해를 확산시킨다 (Pierson and Scott, 1985;Smith, 1986;Scott, 1988 …”