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method of questionnaire sheet survey and interviews until now. (Hayashi et. al. 1997, Kimura et.
al. 1999, 2000, Tanaka et. al. 2000)
However, these data should be understood with the relation between physical environment
change data such as physical damage, situation of shelters, dismantle of damaged buildings, a
land use change and reconstruction of buildings. It is necessary to clarify the relationship
between behavior of people and physical recovery to understand a holistic disaster process.
The goal of this study is to establish the numerical disaster process simulation model, which
makes it possible to estimate when recovery from disaster will complete and how we progress
recovery in the most effective manors. And we will distinguish what factor accelerates physical
recovery by more quantitative manner by analyzing the relationship between activities for
recovery and physical recovery. To do so, long term continuous monitoring is necessary to
record physical recovery. It is essential data in a natural science field. For example, continuous
ground motion monitoring is very common method in seismology.
How can we monitor physical recovery An aerial photograph is the best way to monitor
physical environment changes of broad area and it is easy to convert into GIS data. However, it
is difficult to collect continuous data of physical recovery using aerial photograph. The
continuous monitoring using CCD camera system is used for monitoring natural hazards such
as volcanic eruption and flood. And we have established a continuous disaster process
monitoring system using CCD camera system. This system can monitor not only the physical
recovery but also many data on disaster process, such as damages, situation in shelters, and
activities at the impacted area. The implementations of this system into a real disaster response
will be discussed in anther paper.
This paper discusses about following topics as the first step of this study; 1) the method to
get the time series of physical recovery degree from a series of observed images, 2) the
relationship between the physical recovery degrees and behavior of impacted.
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Fig.l Disaster Process
2. OUTLINE OF THE MONITORING SYSTEM
2.1 Outline of the monitoring system
We have started continuous monitoring on disaster process at impacted areas for a disaster
such as Kobe-Japan, Chungliao-Taiwan and Miyake Island-Japan and collected the digital
images of the disaster process of impacted areas twice a day using CCD camera system.
Observation data of each day is now accumulated to data server in Japan through the Internet.
And these data is distributed through the Internet at the following address:
http://inpaku.dpri.kyoto-u.ac.jp/jp/join/live/index.html. The outline of the system will be shown
in Fig.2.