1. GEO Grid 災害タスクフォース 東日本大震災における活動 地理情報システム学会 第２０回研究発表大会 2011 年 10 月 16 日

3. 地震動マップ Date: March 11, 2011 Magnitude: 9.0 Max. JMA intensity: 7 (MM: 11~12) [email_address] JMA intensity: 6 - (MM: 9~10) http://qq.ghz.geogrid.org/

9. ASTER Comparison Before and After Tsunami (a) 2008/12/25 (b) 2011/3/14 (c) 2011/3/19 (d) 2011/3/28 陸前高田 The tsunami reached a very deep part of the bay and changed the shape of the coastline.

10. ASTER Comparison Before and After Tsunami (a) 2008/12/25 (b) 2011/3/14 (c) 2011/3/19 (d) 2011/3/28 南相馬 — Considerable erosion and remaining water, even two days after the earthquake

11. ASTER Night-time Thermal Image Covering Fukushima This ASTER night time thermal image covering Fukushima shows the Daiichi nuclear plant as observed by ASTER. The amount of heat radiation as measured by Band 13 (10.67 um) has been converted into brightness temperatures using the Planck rule. In measurements from the Self Defense Forces helicopter, a hot spot of about 100℃ is partially observed. Such high temperature areas cannot be identified by this image. One of the reasons could be due to the spatial resolution of the ASTER thermal band (ground resolution 90m) and due to the pixels including the hot spot averaged with the surrounding area. Another reason might be the influence of the small portion of clouds. Daiichi nuclear power plant © METI/NASA processed by ERSDAC, analyzed by GEO Grid AIST.

12. Change (damage area) Extraction by PALSAR Images Distribution of the discriminant score is calculated from the difference in the backscattering and correlation coefficient of pre- and post-tsunami PALSAR fine beam mode images (2009/11/12 and 2011/3/16), in areas where the elevation (ASTER GDEM) is lower than 50 m above sea level. Pixels whose discriminant score is positive (warmer colors) might be assigned as areas by temporal (seasonal) surface changes and/or damage due to the tsunami of the 2011 Tohoku-Taiheiyo-oki, Japan earthquake.

13. Crustal Deformation Extraction by PALSAR Interferogram images are generated by PALSAR data. These images are acquired in ascending orbit. Where the line of sight is far, this means the ground moves eastward (or is prone to subsidence) and hence far from the satellite. When it is near, however, this means the ground moves westward (or rises) because it moves closer to the satellite . All the PALSAR observation modes are FBS and their offnadir angles are 34.3 degrees. The satellite flight direction is 350.0 degrees and the radar illumination direction is 80.0 degrees.

14. QuiQuake Main shock No. of earthq. (March, 2011) @QuiQuake Web site http://qq.ghz.geogrid.org/ WMS http://ows.geogrid.org/qqm

15. Simple WMS Viewer ① 1:200,000-scale geological map, ② S egment map of active faults, ③ ASTER images acquired on March 14 ① ③ ②

16. Utilization of GEO Grid Contents by Other Portal ALL311 activity operated by NIED ( http://all311.ecom-plat.jp/ ) utilizes GEO Grid and other contents through WMS.

17. GEO Grid Contents on Google Earth ① Strong ground motion map of main shock (QuiQuake), ② Change detection map by PALSAR images, ③ Crustal deformation by PALSAR InSAR for aftershock (March 19) ① ② ③

18. Acknowledgements （順不同）