ISPRS Int. J. Geo-Inf. 2014, 3(3), 1077-1100; doi:10.3390/ijgi3031077
Article

Spatial Representation of Coastal Risk: A Fuzzy Approach to Deal with Uncertainty

1,* email, 1email, 1email and 2email
Received: 1 October 2013; in revised form: 17 July 2014 / Accepted: 6 August 2014 / Published: 26 August 2014
(This article belongs to the Special Issue Coastal GIS)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Spatial information for coastal risk assessment is inherently uncertain. This uncertainty may be due to different spatial and temporal components of geospatial data and to their semantics. The spatial uncertainty can be expressed either quantitatively or qualitatively. Spatial uncertainty in coastal risk assessment itself arises from poor spatial representation of risk zones. Indeed, coastal risk is inherently a dynamic, complex, scale-dependent, and vague, phenomenon in concept. In addition, representing the associated zones with polygons having well-defined boundaries does not provide a realistic method for efficient and accurate representing of the risk. This paper proposes a conceptual framework, based on fuzzy set theory, to deal with the problems of ill-defined risk zone boundaries and the inherent uncertainty issues. To do so, the nature and level of uncertainty, as well as the way to model it are characterized. Then, a fuzzy representation method is developed where the membership functions are derived based on expert-knowledge. The proposed approach is then applied in the Perce region (Eastern Quebec, Canada) and results are presented and discussed.
Keywords: uncertainty; fuzzy set theory; coastal erosion risk assessment; spatial representation; fuzzy object
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MDPI and ACS Style

Jadidi, A.; Mostafavi, M.A.; Bédard, Y.; Shahriari, K. Spatial Representation of Coastal Risk: A Fuzzy Approach to Deal with Uncertainty. ISPRS Int. J. Geo-Inf. 2014, 3, 1077-1100.

AMA Style

Jadidi A, Mostafavi MA, Bédard Y, Shahriari K. Spatial Representation of Coastal Risk: A Fuzzy Approach to Deal with Uncertainty. ISPRS International Journal of Geo-Information. 2014; 3(3):1077-1100.

Chicago/Turabian Style

Jadidi, Amaneh; Mostafavi, Mir A.; Bédard, Yvan; Shahriari, Kyarash. 2014. "Spatial Representation of Coastal Risk: A Fuzzy Approach to Deal with Uncertainty." ISPRS Int. J. Geo-Inf. 3, no. 3: 1077-1100.

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