application of remote sensing and gis for flood risk analysis: a case ...

IRJC
International Journal of Social Science & Interdisciplinary Research
Vol.1 Issue 11, November 2012, ISSN 2277 3630
A study of various types of flood and their characteristics in general will be required to
understand the characteristics of flood in the villages of Raichur district under Krishna and
Tungabhadra river valley region. This study will be carried out from secondary sources.
However primary survey will be conducted
1. To study the characteristics, causes and impact of flood affected villages in the study area
2. To study the efficacy of existing Post flood rural planning and development strategies
for the flood affected villages in the study area.
As the government has intervened in the planning and development processes in the flood
affected regions some secondary information will also be available, the same will be used to
understand the characteristics, causes and impact of flood. Based on the research study effective
Post flood rural planning and development strategies will be proposed for the type of flood
which generally prevailed in the study area.
To understand the causes for flood in the villages a detailed study will be carried out on the flood
phenomena in the study area by referring to its past recorded information. Also a field survey
(general enquiries and observation) will be conducted to study effects of flood on the village
settlements. The effect of flood has been studied categorically in terms of its implications on
social, economic and physical structure of villages.
A set of data will be collected regarding the planning measures that have been undertaken during
the flood and on the post effects of flood. Based on the data analysis and literature case studies,
some planning suggestions were proposed for the effective rehabilitation processes of a flood
affected villages.
The study will be carried out by collecting data, from both primary and secondary sources:
‣ Detailed mapping of the settlement pattern and topographic features for delineating the
study area.
‣ Hydrology and geological information to identify the flood zones, major drainage system
of the region and other aspects related to select the proposed area for rehabilitation.
‣ Causes of the flood and their effects on socio-economic and physical structure of the
village.
‣ Data that can support identification of problems in the planning measures under taken by
the concerned authorities and their efficacy in attaining the requirements of the flood
victims.
Three Methods of GIS Linkage
According to a literature review of GIS applications in computer modeling conducted by Heaney
et al. (1999) for the U.S. Environmental Protection Agency (EPA), Shamsi (1998, 1999) offers a
useful taxonomy to define the different ways a GIS can be linked to computer models. The three
methods of GIS linkage defined by Shamsi (2001) illustrated in Figure 2 are:
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