Atsuhiko KINOSHITA’s research while affiliated with national institute for land and infrastructure and other places

... However, effectively leveraging this vast amount of video footage for operational purposes, such as tsunami detection, remains challenging (MLIT 2023). Demonstrations of the potential use of CCTV footage for detecting landslide-related disasters (Kinoshita et al. 2022) and observing river water levels (Sakai et al. 2015) have been conducted. The widespread deployment of coastal CCTV cameras illustrates their potential to enhance the coverage and resolution of the observational network for tsunami detection, complementing specialized offshore equipment. ...

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Potential for Tsunami Detection via CCTV Cameras in Northeastern Toyama Prefecture, Japan Following the 2024 Noto Peninsula Earthquake

... Based on the fact that areas of low resistivity have high clay content or rich groundwater, Sakai et al. [2016] showed the contrasts between fractured bedrock that allows groundwater to pass through easily and consolidated clay layers that groundwater are difficult to infiltrate. Thus, groundwater information can be indirectly extracted from the obtained resistivity values, which are used to investigate groundwater distribution over a wide area, including landslides [Nakayama and Igarashi, 2002 ;Nakazato et al ., 2006 ;Suzuki et al ., 2009 ;Kinoshita et al ., 2021]. For example, Nakazato et al . ...

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A Review of Groundwater Observation Methods for Slow-Moving Landslide

... Finally, an important caveat is the limited prediction power for large, deep landslides, and thus on total landslide volume and associated erosion and sediment fluxes. Although high R* seems essential and is a better predictor than Rt, for local groups of deep landslides (Kinoshita et al., 2013;Saito & Matsuyama, 2012), it is insufficient, as large landslides may depend on local conditions independent of the rainfall pattern (present or past). For example, in the Kii Peninsula, large Talas landslides were related to stratigraphic or geologic structures forming preexisting weakness planes (Chigira et al., 2013;Kojima et al., 2015) and/or longterm gravitational deformation (Chigira et al., 2013). ...

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Spatial Patterns of Storm‐Induced Landslides and Their Relation to Rainfall Anomaly Maps

... c) For O2, the slope deformation also increases with the elevation, and the maximum displacement occurred at the surface of the driving section of O2. It should be noted that although the slope movement at the locking section for these two subunits is small and no obvious deformation can be found in the area of maximum thickness, we cannot take this lightly because many deep seated landslide could also be triggered by rainfall (Guerricchio et al., 2012;Kinoshita et al., 2013;Kuo et al., 2013;Riaz et al., 2021). ...

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Performance and application of a novel drainage anti-slide pile on accumulation landslide with a chair-like deposit-bedrock interface in the Three Gorges Reservoir area, China

... The earthquake in the Noto Peninsula on 1 January, 2023, triggered the formation of many landslide dams [36]. The revision of the "Act on Promotion of Sediment Disaster Countermeasures in Sediment Disaster Hazard Areas" of May, 2011, mandated emergency countermeasures to address possible large-scale landslide dam formations; this enhanced social awareness [37]. The risk of debris flow and downstream flooding increases when the regular river flow is high or countermeasures are not quickly implemented. ...

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The Impacts of River Channel Blockages Caused by Sliding Embankment Collapses during Earthquakes

... However, a solid relationship cannot be found between RC and ash fall thickness. This can be explained by several reasons like ash grain size (Nomura et al., 2003), porosity (Koi et al., 2013) and crust formation (Jones et al., 2015;Kinoshita et al., 2013;Waldron, 1967) on the surface. Surface crust formation in particular decreases the infiltration capacity of the material and creates surface flow even with a very thin ash accumulation. ...

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Temporal changes in lahar sediment run-off characteristics and run-off coefficients in the Arimura River basin of Sakurajima volcano, Japan

... In particular, Jiang et al. (2023) demonstrated that deep-rooted species such as elms (Ulmus procera) increase slope stability by enhancing the shear strength of soil. Kinoshita et al. (2013) revealed the importance of lateral root strength for slope stability in both coniferous and broadleaf forest. Löbmann et al. (2020) highlighted the role of lateral roots from grass species (e.g. ...

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Understanding the role of vegetation root systems in the initiation of rainfall-induced shallow landslides: scaling perspectives

... It should be noted that the majority of landslides occur along discontinuous surfaces, such as bedding planes, where the strength of the upper layers differs from that of the lower layers. However, the strength and deformation properties of the contact surfaces between different soil layers during static and dynamic loading remain to be clarified (Sassa et al., 1995;Onoue et al., 2006;Wakai et al., 2010;Kinoshita et al., 2013). ...

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Ring shear characteristics of discontinuous plane

... Furthermore, the accuracy of predicting sliding surface locations highly depends on the accuracy of the hydrogeological models built from field investigation data. Therefore, some studies [15][16][17] proposed alternative methods for predicting sliding surfaces, attempting to overcome the limitations of numerical methods. ...

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Development of Potential Slip Surface Identification Model for Active Deep-Seated Landslide Sites: A Case Study in Taiwan

... Several studies have been performed on the Higashi-Takezawa landslide (Sassa et al., 2007;Kinoshita et al., 2009;Yamabe et al., 2010). For example, Sassa et al. (2007) concluded that the Higashi-Takezawa landslide was triggered within the debris of an old landslide, and the sliding surface was developed within the sandy layers. ...

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Layered internal structure and breaching risk assessment of the Higashi-Takezawa landslide dam in Niigata, Japan