Japan STA Program: Computer Modelling of Volcanic Eruptions

9418770 Dehn该奖项支持日本科学技术厅为Jonathan Dehn博士提供的为期12个月的博士后奖学金，他在日本札幌市的日本地质调查局工作。Dehn博士将与北海道分会的Takarada博士合作开展一个名为“日本STA计划：火山喷发的计算机模拟”的研究项目。在火山学中，对火山系统从喷发到沉积的模拟一直缺失。Dehn和Takarada将研究日本各地低能量火山喷发时产生的火山成因粒子。这些数据将被用来制定火山喷发的模块化定量模型。将对火山喷发的每个物理组成部分进行模拟，包括泡化、破碎、抛射、空中运输、水下运输、沉积、变形、次生破碎和质量浪费。研究小组将为每个组件开发一个模块化的计算机程序，可以在整个模型中添加或删除这些组件，以模拟几乎任何火山条件。这一模型将是全面模拟火山系统的重要基础，不仅在理解活动系统方面，而且在解释古火山及其沉积方面，都可能成为一种有用的工具。该模型将在确定火山危险以及对其他行星上的喷发进行建模方面大有裨益。***

9418770 Dehn This award supports a 12-month Science and Technology Agency of Japan Postdoctoral Fellowship for Dr. Jonathan Dehn at the Geological Survey of Japan, Sapporo, Japan. Dr. Dehn will work with Dr. Takarada at the Hokkaido Branch on a research project entitled, "Japan STA Program: Computer Modeling of Volcanic Eruptions." The modeling of a volcanic system from eruption to deposition has been missing in volcanology. Dehn and Takarada will study the volcanogenic particles created during low energy volcanic eruptions throughout Japan. This data will be used to formulate modular quantitative models of the eruptions. Each physical component of the volcanic eruption will be modeled including vesiculation, fragmentation, ejection, subaerial transport, subaqueous transport, deposition, deformation, secondary fragmentation and mass wasting. The research team will develop a modular computer program for each component which can be added or deleted from the whole model in order to simulate nearly any volcanic condition. This model would be an important basis for comprehensive modeling of volcanic systems, and could be come a useful tool not only in the understanding of active systems but also in interpretation of ancient volcanoes and their deposits. The model would be of great use in volcanic hazard determination as well as modeling of eruptions on other planets. ***