According to a research conducted in the aftermath of Sandy by the Furman \citet{center2013}
GIS and remote sensing are critical tools for analyzing, preparing for, mitigating, and responding to natural and human-induced disasters, including from flooding events \cite{Huang_2009}\cite{Strobl_2012}. Geo-spatial technologies are used to estimate the risk of occurrence of a disaster based on physical and/or social dimensions. These two dimension are brought together in the concept of risk, which is a function of exposure, social vulnerability and the ability to recover of different social groups to flooding \cite{Ka_mierczak_2011}. Although there may be many variables influencing exposure to floods, here I refer to exposure as the susceptibility to being affected by an environmental related hazard \cite{Cutter_2005,Cutter_2012}, such as a flood event, based on area topography, proximity to the floodplain and rainfall trends.