of information was offered. On the contrary, at
the beaches where a few information was
offered the volunteer can't know that beach
necessity to retrieve oil slick, as the result, only
the domestic people forced to retrieved oil slicks
inefficiently.
2) Confusion of information offer by many
organization not being unified I):
Seashore region is managed by Maritime Safety
Agency, Ministry of Construction, Ministry of
Transportation, Ministry of Agriculture,
Forestry and Fisheries, and the Environment
Agency respectively and divided into each
area to be managed. And the section in the local
governments correspond to the direction by the
government above-mentioned in there own
jurisdiction. As the result the jurisdiction of
managements of nearshore region were different
according to the beach where oil slicks were
arrived and sometimes pressed each other.
Because the right twine with complexity, to the
problem solving in the nearshore region crossed
correspondence was requested. But there were
no way to unify the informations from such
sections.
3) Confusion by necessity of various
professional knowledge for retrieving oil-spill:
There are not any specialist and database on oil-
spill restoration on the Nakhodka oil-spill
incident. So,
for retrieving the oil on shore, we needed the
various professional knowledge, such as on
chemical science, environmental economics,
low and environmental information etc.. For this
object we used the Mailing-list
(oil@seiryo.ac.jp) as the bulletin board to unify
the suggestion and information to do our work
concurrently. Moreover because this system 1s
character base, it is difficult for us to work
concurrently especially on the case which some
photograph and figure ware necessary.
Offering the information via internet was paid
attention on Hanshin Awaji great earthquake
(1995) and O-157 disaster(1996) in Japan. In the
Nakhodka oil-spill disaster many home pages
and Mailing-lists stood up in various places
simultaneously. However, we can do nothing
but rely on character information in Mailing-list,
and can do nothing but draw the situation of
oil-spill distribution in the head of the person
who saw it was a current state until the oil-spill
distribution map was offered by someone. As a
result some delays were caused to offer the
image information to the home page. Therefore,
then information such as the oil-slick
422
distribution status greatly depends inevitably on
each one's ability, and they ware transmitted as
various information.
Concerning the confusion mentioned above, we
need the
system for unifying, managing and holding
various in common. Web-GIS can satisfied
these necessity. |
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Fig.1 The region where oil-slick arrived in the
Nakhodka oil-spill, Jan.,1997.
(Bold line shows the region where oil-slick
arrived)
3. GIS AS THE INFORMATION
BULLETIN BOARD SYSTEM
3.1 Necessity of information bulletin board
The information bulletin board system(BBS) on
the internet is effective to send information
promptly, and accurately. These system was
made when the Nakhodka oil-spill disaster was
occurred for trial purposes. It is shown in Fig.2.
Mainly character based information including
image based on the photograph and the home
page from volunteer ware put on BBS and on
Web-GIS one by one by the hand work
respectively. The lessons from these series of
work is summarized as follows.
1) Character based information from all over
Japan was updated automatically — in
BBS.Because this information was based on the
order of arrival time, it is difficult to recognize
from where this information come from and
what information this information deals with in
a moment.
International Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 7, Budapest, 1998
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