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Satellite hot spot monitoring of active volcanoes : a AVHRRR-based system

活火山卫星热点监测：基于 AVHRRR 的系统

基本信息

批准号：
13640418
负责人：
KANEKO Takayuki
金额：
$ 1.73万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640418/
关键词：
Volcanoes Web Thermal analysis Realtime monitoring Internet Remote sensing WWW NOAA モニタリング

项目摘要

We have developed near real-time hot spot monitoring system for active volcanoes in Japan and adjacent geographic regions in Asia. The system uses daily nighttime infrared imagery from the AVHRR sensor mounted onboard the NOAA series of polar orbiting satellites, AVHRR data being down-linked to Tokyo one or more times every night. The results and analyzes of the AVHRR observations, essentially thermal images and time-series radiance trends of each volcano targeted, are automatically uploaded on the Web. Currently this occurs within some hours of the satellite overpass, though this could be quickened in future. In this way it is planned that volcanologists and other interested parties might use the AVHRR data as a broad check on the surface thermal state of the volcanoes they are studying and may apply their own interpretations to any identified heating or cooling trend. The web site for the prototype AVHRR based system is accessible at the URL: http://vrsserv.eri.u-tokyo.ac.jp/ REALVOLC/ [http://vrsserv.eri.u-tokyo.ac.jp/REALVOLC/] and we envisage future expansion from the five Japanese volcanoes currently targeted. Ultimately, in addition to further Japanese volcanoes, the system will be expanded to include those in the northern Philippines, the Kuril Islands and the Kamchatka peninsula, along with volcanoes in Western Indonesia using data transferred from the Thailand AVHRR receiving station.

我们为日本和亚洲邻近地理区域的活火山开发了近乎实时的热点监测系统。该系统使用来自安装在 NOAA 系列极地轨道卫星上的 AVHRR 传感器的每日夜间红外图像，AVHRR 数据每晚一次或多次下行传输到东京。 AVHRR 观测结果和分析，主要是每座目标火山的热图像和时间序列辐射趋势，都会自动上传到网络上。目前，这种情况发生在卫星立交桥的几个小时内，尽管将来可能会加快。通过这种方式，火山学家和其他感兴趣的各方可以使用 AVHRR 数据对他们正在研究的火山表面热状态进行广泛检查，并可以将自己的解释应用于任何已识别的加热或冷却趋势。基于 AVHRR 的原型系统的网站可通过以下 URL 访问：http://vrsserv.eri.u-tokyo.ac.jp/ REALVOLC/ [http://vrsserv.eri.u-tokyo.ac.jp/REALVOLC/]，我们设想未来从当前目标的五座日本火山进行扩展。最终，除了更多的日本火山外，该系统还将利用从泰国 AVHRR 接收站传输的数据扩展到包括菲律宾北部、千岛群岛和堪察加半岛的火山，以及印度尼西亚西部的火山。