Development of an Optical Multispectral Remote Sensing System for Measuring Volcanic Surface Phenomena – Promotion Project for Next Generation Volcano Research B2 (Subtopic 2-2)
Development of an Optical Multispectral Remote Sensing System for Measuring Volcanic Surface Phenomena – Promotion Project for Next Generation Volcano Research B2 (Subtopic 2-2)
复制标题
开发用于测量火山表面现象的光学多光谱遥感系统——下一代火山研究推进项目B2（子主题2-2）
DOI：
10.20965/jdr.2019.p0728
复制
发表时间：
2019
影响因子：
0.8
通讯作者：
T. Jitsufuchi
中科院分区：
文献类型：
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作者：
T. Jitsufuchi
2016年，我们启动了“下一代火山研究促进项目B2”（主题B：尖端火山观测技术的发展，分主题2：火山观测遥感技术的发展），分专题2-2（火山地表现象遥感技术开发）”下的“下一代火山研究和人力资源开发综合计划”[1]，目的是发展一种测量火山表面现象的光学多光谱遥感系统。在副主题2-2中，我们计划开发一种称为表面现象成像相机（SPIC）的新观测设备，该设备在技术上上级当前的遥感技术，即，从飞机或地面观测火山表面现象的光学遥感观测技术。我们的目标还在于应用已开发的观测系统来量化火山活动，并确定火山爆发的可能性（紧急程度）或高精度的火山危机事件树分支，从而有助于更好地预测火山爆发的转变。为了实现上述目标，我们根据对2015年度由国家地球科学和灾害复原研究所开发的机载光谱成像系统ARTS-SE进行的实验观测进行的初步分析，开始了SPIC的开发，为其配备了相机型传感器。我们已经开发了其组件，例如原型滤波器型多波段相机SPIC-UC，原型非制冷红外相机，SPIC-C，冷却相机和SPIC-SS，可见光相机。SPIC-UC是一款双波段相机，具有可视化温度和SO2气体浓度分布的功能。SPIC-C具有高精度测量2至1075 ° C温度的功能（噪声等效温差，NETD：16 mK）;它配备了在中波红外区（MWIR）工作的传感器和滤光轮。SPIC-SS是一个六镜头多波段相机系统，可估计从多波段光谱（6个波段）到超光谱（300个波段）的测量图像。在此基础上，研究了一种误差小于30 m的数字表面模型的估计方法.由于我们的计划已按计划进行，我们打算在2020年前完成SPIC原型。
In 2016, we launched the “Promotion Project for Next Generation Volcano Research B2 (Theme B: Development of Cutting-edge Volcano Observation Technology, subtheme 2: Development of Remote Sensing Techniques for Volcano Observation), subtopic 2-2 (Development of Remote Sensing Techniques for Surface Phenomena of Volcano)” under the “Integrated Program for Next Generation Volcano Research and Human Resources Development” [1], aiming at the development of an optical multispectral remote sensing system for measuring volcanic surface phenomena. With subtopic 2-2, we are planning to develop a new observation device called a surface phenomena imaging camera (SPIC), which is technically superior to current remote sensing techniques, i.e., optical remote observation techniques used to observe volcanic surface phenomena from aircrafts or ground. We are also aiming at applying the developed observation system to quantify volcanic activities and determine volcanic eruption potentials (degrees of urgency) or branching of event trees for volcanic crises with high accuracy, contributing to better predictions of volcanic eruption transitions. To achieve the above-mentioned aims, we started the development of the SPIC by equipping it with camera-type sensors, based on preliminary analyses of the experimental observations made with the airborne spectral imaging system ARTS-SE, which consists of a pushbroom scanner and a camera system, developed by the National Research Institute for Earth Science and Disaster Resilience in FY 2015. We have already developed its components, such as the prototype filter-type multiband cameras SPIC-UC, a prototype uncooled infrared camera, SPIC-C, a cooled camera, and SPIC-SS, a visible-light camera. The SPIC-UC is a two-band camera with the function of visualizing temperature and SO2 gas concentration distributions. The SPIC-C has the function of measuring temperatures between 2 and 1075◦C with high accuracy (noise equivalent temperature difference, NETD: 16 mK); it is equipped with a sensor and a filter wheel that work in the middle wave infrared region (MWIR). The SPIC-SS is a six-lens multiband camera system that estimates the measured images from multiband spectra (6 bands) to hyper spectra (300 bands). Further, we studied a method to estimate digital surface model with a ∼30-m error. As our plan has progressed as scheduled, we intend to complete the prototype SPIC by 2020.