Summary of my work study, please can you help me and correct me ? Shippagan and Le Goulet are coastal community (located in North-West of New-Brunswick, Canada) which are sensitive to marine submersion because of their law topography elevation. Flooding created by storms surge was recently impacted these communities. For helping their adaptation we suggest to work on residents and stakeholder awareness. Or in term of risk, same causes generate same effects and could also be increased by climate change. So our main purpose is to develop culture through historic knowledge. We want to estimate the territory's vulnerability and its evolution across time. For that we are using the submersion hazard, its frequency and its impact by compiling historic data of study area and local knowledge (thanks to sociological investigations). And we examine the evolution of territory development on concerned sectors due to aerial pictures (from 1944 to 2012). We find three main storms that already induced major submersion in this territory (in 1968, 2000 and 2010). Flooding impact are a recently concern for these communities. So most of the residents aren't worried about flooding problems. Indeed, over time the coastal urbanization rise with successful fishing, leading to a vulnerability growth. Moreover territory has seen significant change, with agriculture decline, wetland destruction, polder and protective structure. We create map to make the danger a reality through event already past, and discuss about the population memory and interest.