ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-1/W1, 149-156, 2017
https://doi.org/10.5194/isprs-annals-IV-1-W1-149-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
30 May 2017
EXPOSURE AND VULNERABILITY GEOSPATIAL ANALYSIS USING EARTH OBSERVATION DATA IN THE CITY OF LIEGE, BELGIUM
N. Stephenne1, B. Beaumont1, E. Hallot1, F. Lenartz1, F. Lefebre3, D. Lauwaet3, L. Poelmans3, and E. Wolff2 1ISSeP, Remote Sensing and Geodata and Air Quality Monitoring Units, 4000 Liège, rue du Chéra, 200, Belgium
2ULB, ANAGEO-IGEAT, 1050 Bruxelles, Av. F.D. Roosevelt, CP 130/03, Belgium
3VITO, 2400 Mol, Boeretang, 200, Belgium
Keywords: Vulnerability, Exposure, Earth Observation, Land Cover / Land Use, Urban Heat Island, Air Pollution, City Models Abstract. Risk situation can be mitigated by prevention measures, early warning tools and adequate monitoring of past experiences where Earth Observation and geospatial analysis have an adding value. This paper discusses the potential use of Earth Observation data and especially Land Cover / Land Use map in addressing within the three aspects of the risk assessment: danger, exposure and vulnerability. Evidences of the harmful effects of air pollution or heat waves are widely admitted and should increase in the context of global warming. Moreover, urban areas are generally warmer than rural surroundings, the so-called urban heat island. Combined with in-situ measurements, this paper presents models of city or local climate (air pollution and urban heat island), with a resolution of less than one kilometer, developed by integrating several sources of information including Earth Observation data and in particular Land Cover / Land Use. This assessment of the danger is then be related to a map of exposure and vulnerable people. Using dasymetric method to disaggregate statistical information on Land Cover / Land Use data, the SmartPop project analyzes in parallel the map of danger with the maps of people exposure A special focus on some categories at risk such as the elderly has been proposed by Aubrecht and Ozceylan (2013). Perspectives of the project includes the integration of a new Land Cover / Land Use map in the danger, exposure and vulnerability models and proposition of several aspects of risk assessment with the stakeholders of Wallonia.
Conference paper (PDF, 1381 KB)


Citation: Stephenne, N., Beaumont, B., Hallot, E., Lenartz, F., Lefebre, F., Lauwaet, D., Poelmans, L., and Wolff, E.: EXPOSURE AND VULNERABILITY GEOSPATIAL ANALYSIS USING EARTH OBSERVATION DATA IN THE CITY OF LIEGE, BELGIUM, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-1/W1, 149-156, https://doi.org/10.5194/isprs-annals-IV-1-W1-149-2017, 2017.

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