In GharehAghaj basin
drought has the most profound effect on the way of living and regional economy.
Drought Hazard by nature is a result of interrelated parameters concerned. The
objective of this paper presents a model to assess hazard of drought using the
Geographical Information System (GIS). The data analyzed have been gathered
from the records, reports and maps published by the governmental offices of
Iran. Various drought hazard
indicators have different severity classification in different models. The
drought hazard indicator maps take into account the meteorological,
hydrological, physical and socioeconomic characteristics that related to
drought hazard. Each of the hazard indicator maps and also final hazard map are
classified into 4 hazard classes of drought: mild, moderate, severe and very
severe. The final hazard classes were defined on the basis of hazard scores
arrived at by assigning the appropriate attributes to the indicators and the
final hazard map was prepared by overlaying different hazard indicator maps in
the GIS, deploying the new model. The final Hazard Map shows that moderate
hazard areas (89.87% of the basin) are much widespread than areas under severe
hazard (10.13% of the basin) which are observed in the Southeast of the region.
Cite this paper
Zareiee, A. and Masoudi, M. (2014) Evaluation of Drought Hazard Area of GharehAghaj Basin in Iran, Using GIS. Atmospheric and Climate Sciences
, 147-154. doi: 10.4236/acs.2014.42017
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