Greenrey(Green Space) Percentage Estimation Using Band Ratio, NDVI From
Landsat Enhanced Thematic Mapper(ETM)-2002 & An Application Of
Geographic Information System(GIS) Techniques, Dezful-Andimeshk,
Khuzestan South-West Iran
Saied Pirasteh (1) Syed Ahmad Ali (2) Heshmi Jamil Hussain (3)
Contact Email:moshaver1380@yahoo.co.uk
1- Faculty of Engineering, Islamic Azad University of Dezful, Dezful-Iran
2-Department of Geology, Aligarh Muslim University, Aligarh, India,
E-mail:saaligeology@yahoo.com
3-Forest Research Institute, Dehradun, India,
E-mail: hishmijamil@rediffmail.com
Abstract
Landsat-7 ETM was used to derive the greenery for the Oct-2002 in the Dezful-Andimeshk,
Khuzestan, southwest Iran. Dezful and Andimeshk are very hot cities in summer
and dry winter with about +1 degree centigrade. Urbanization was correlated with increasing
needed of the land for settelment and it caused one of decreasing amount of greenery.In other
hand decreasing of greenery makes human who stay in these area loose their comfortability.
Greenery has an important role as an indicator of environmental condition in the urban areas.
The percentage of the greenery was estimate and evaluated by the remote sensing methods
like Band Ratio, NDVI, supervised classification and post classification . Function of
vegetation in urban areas strongly controls urban air pollution, thermal environment and
influence urban microclimate. Quantitative analysis about green space in Dezful-Andimeshk
and its suburbs are necessary for evaluate environmental condition in greenery aspect,
application of image data analysis, and GIS are effective for the area like Dezful-Andimeshk
of the present research.
Percentage obtained of greenery in selected area indicated shortage of green spaces in both
the cities namely Dezful-Andimeshk from the study area. However, this study reveals that
how satellite data beside GIS techniques approach eases data archiving and map.
|
|