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8/7/2019 Japan Tsunami Footprint : ecityrisk
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- reliable Visual Business Intelligence for the Insurance Industry
17 March, 2011
1
2011 Japan Tsunami & EarthquakeFact-based Assessment of Tsunami Inundation Damage using
Visual Business Intelligence
Contact: Matthew Honey 07754258047 [email protected]
Steve Richardson 07881942005 [email protected]
Dr. Beverley Adams 07941287313 [email protected]
eCityRisk UK Communications House, 63 Woodfield Lane, Ashtead, Surrey, KT21 2BT, UK +44 2081 239864eCityRisk USA 400 Oceangate, Suite 1050, Long Beach, California, 90802, USA +1 562 628 1675
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eCityRisk tsunami footprint
eCityRisk have commissioned,produced and interpretedsatellite images showing theTsunami footprint
This footprint shows the extentof the flood inundation and theextent of the damage
The benefits will be to enable
users to make an early andaccurate assessment of theimpact of the Tsunami onpolicies underwritten.
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available now...
1. Excel spreadsheet % areainundated by tsunami
a) 7 digit postcodeb) Shi, Machi, Mura
c) 3 digit postcoded) Prefecture
2. GIS tsunami footprintfor Japanese coast
a) Kmz (Google Earth)b) Shapefile (ArcGIS)
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cities covered include....
Tsunami ht
+3m
<2m
<0.5m
*Ueda
YonedairaTorizoneOsawaKubotaKoyatoriOuraYotsukuraKami-AsamigawaArayashikShimo-KitaboFunakoshiSukuisoKami-YamodaYamadaKitanosawaNarusawaMoto-KawaragoMizukiHitachiSakiyamaSakikuwagasakiTaroOishiHongo
KojirahamaKami-HeidaHeidaMiyakoMishimaTakahagiNakayamaYoshimaShizugawaIsatomaeTairaHaraigawa
TsuzuraMinatoAratohamaNakasatoKodakiYoriisoTerahamaAikawaOhamaOsuKita-NaganoFunagoshiOzashi
HirananamisawaMurobaTsukihamaNumafukuroHagyuNei HorinaiFutabaKiyohashiTamagawaOkumaTakashizuOtomoNoda-Tamagawa
Akamae IshihamaTsugaruishi OmoeSasasawa MiyamotoOnabaNamieNakanouchiOdakaHamaShukuTadagoeImaizumiKoharagi
BogoyaTomiokaTakatsudoNarahaOragahamaKami-ShigeokaIdeTsukinokiUmenomiya-JutakuTagoShiogamaUmenomiya-JutakuSugaya
IwakiriRifuSchiogamaKamimachiYoshizumiSendaiShinzanHonchiShirotoriOtaIwasakiNishinoFudaba
SangatsudenNigoTaketaniHirawataOyanagiShinkawaKimazukaOuchiYamanomachiShimo-TsuyakawaTsuya
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Total number of 7 digit postcodes affected: 687Total length of affected coastline: c.400kmTotal inundated area: c.700km2
% Postcode Inundation
Sendai
Ishinomaki
Kesennuma
Koriyama
Extract from spreadsheet
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how we do it...
Comparing satellite images captured before and immediatelyafter the tsunami by NASA and other non-military suppliers.
Tsunami inundation changes the appearance of the groundsurface (where houses, farmland etc is replaced by debris,mud and water). This spectral change is what we detect on
the images
To produce the footprint we used a combination ofsophisticated image processing algorithms that we developedafter the 2005 Indian ocean tsunami, along with expertinterpretation by our team of remote sensing specialists
We check and validate using lots of sources including geo-
tagged photos, Google Earth, reports and social media.In a small number of cases (currently <5%) there are gaps inthe footprint because clouds blocked the satellite’s view. Weare filling these in as new images become available. This willbe provided as an update.
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see it for yourself...
No Damage
Damage
Rikuzentakata
Takata Elementary School
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Ishinomaki port
Before After
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Sendai meat processing factory
Before After
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Contact us:[email protected]
