Environmental monitoring using remote sensing techniques

الملخص EN

Remote sensing (RS) is the transport of information from an object to receiver (observed) by means of radiation transmitted through the atmosphere.

This study focusing on the vegetation because of its important from both ecology (which works as air purifier of dust winds ; and due to the process of the photosynthesis , plant are production Oxygen (O2) and consume Carbon dioxide (Co2) gas harmful to the environment) ; economic (the most important economic feature of plant is it selffeeding, thus providing food for themselves and for herbivorous animals and also humans).

The following cases have been studied : 1.

Vegetation mapping Before obtain the vegetation mapping (which is classified according to the value of "NDVI"), three methods of atmospheric correction was applied on the study areas (Baghdad and surrounding areas for different times (1990 and 2001), and (North of Basrah, Maysan and the surrounding areas for different times (2000 and 2004)) the methods are : -Dark object subtraction -Internal average relative reflectance -Log residuals 2.

Furthermore we study the change detection (Long time change), The change in water level of Al-Razaza lake for period (1990-1994-2001) was taken as an example for long time change.