Fumihiko Yamada

TL;DR: In this paper, a spectral wave transformation numerical model called CMS-Wave is presented for accurate and reliable representation of wave processes affecting operation and maintenance of coastal inlet structures in navigation projects as well as in risk and reliability assessment of shipping in inlets and harbors.

TL;DR: In this article, participatory approaches for community-based flood risk communication are proposed using the workshops based on a Plan-Do-Check-Action (PDCA) cycle to enhance local flood disaster mitigation, and the fundamental resident flood evacuation data was obtained through the evacuation drills and analyzed with respect to the timing of the announcement of evacuation information, walking speed during evacuation, and locations of evacuation centers.

TL;DR: It is hypothesized that the amount of phytoplankton determines the carrying capacity for the benthic community on the Shirakawa sand flat, and the subsequent increases in competition for space have caused further declines in the Manila clam population biomass to approximately one-eighth of its past value.

TL;DR: In this article, the authors used a quadratic profile to estimate intertidal mudflat morphology at other sites in the vicinity of a river mouth for two years, and the measured profiles were shown to be approximated within average errors of 3 cm by a quadraatic profile with three parameters that vary with time.

TL;DR: In this paper, an integrated vulnerability and risk assessment model (IVR) is proposed, which assesses the relationships among four critical components, namely exposure, hazard, vulnerability and capacities and measures, and how these can be used to illustrate the integrated risk and vulnerability situation of an area.