Posted March 8th 2012 at 8:10 am by
in Post-disaster Planning

Post-earthquake Aerial Photography in Japan

Post-earthquake Crisis Mapping in Japan, large

Aerial Maps above and below by Unmanned Aerial Vehicle (UAV). Click on image to see it at full size.

Map Key

A. Akahama area in Ohtsuchi, Iwate. (May 1, 2011)

B. Sightseeing boat on the House. (May 1, 2011)

C. After removal at the same position. (June 13, 2011)

D. The difference of digital elevation model.

E. After Removal of rubble. (June 13, 2011)

F. Removal of rubble at the same position. (May 1, 2011)

Post-earthquake Crisis Mapping in Japan, 640

One year has passed since the earthquake struck off Japan. The organizations I work with have spent most of the time on improving some CrisisMapping Projects (OpenStreetMap, sinsai.info by Ushahidi and High Resolution Photo Archives by GigaPan/UAV) we have continued to work on since the very day of the earthquake. Let us review our activities.

Post-earthquake Crisis Mapping in Japan

Panorama Photo in Akahama, Ohtsuchi by Taichi FURUHASHI. See image at full size.

Post-earthquake Crisis Mapping in Japan

Crowdsource mapping system Sinsai.info based on Ushahidi. Click on image to visit site.

Initially OpenStreetMap Japan really was a small community as there were only 10 members. However, number of users started increasing gradually so OSM Japan was able to have 600 users in 2010 and now 800 users after entering into 2011. Our organization has been expanding our activities while increasing our users. The above graph shows the activity status of OSM Japan before and after the Great East Japan Earthquake. The number of user has rapidly increased in March this year when the earthquake occurred where the number of total user became more than 1,200 and the number of active user who has done the work of editing OSM within one month after the earthquake has increased to approximately 500 accounts which almost doubled the number of 200 – 300 accounts before the earthquake.

While increasing the momentum, we continue to work on updating tasks of background map in order to properly document process of recovery/restoration on the map using by GigaPan/UAV and other good sources.

Post by Taichi FURUHASHI, President of MAPconcierge Inc., and Vice-President of OpenStreetMap Foundation Japan. Follow him @mapconcierge on Twitter.

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