The feasibility of bio-Hydrogeomorphic features for Aras River by Using satellite images

Understanding the factors bio-Hydrogeomorphic and its work in the recognition and management of the environment in the river Aras River, is very important. These factors can be pointed to the growth of algae. Nowadays Eutrophication considered as an important global issue that affects the aquatic ecosystem and balance it to come together. This phenomenon is caused by the growth of algae in a water bed that one of the causes of the excessive use of fertilizers and entry into the water. So, monitoring and observation of this phenomenon is necessary to deal and manage it. In this regard remote sensing technology as a new method, the necessary means to identify the emergence and development of river algae and modeling of spatial and temporal variations provide them. Remote sensing technology allows accurate identification of areas covered with temporal images algae and provides growth and development. Feasibility study aimed to identify the areas covered by algae within the Aras River is considered as the most important border river. In this study, Landsat 8 satellite imagery has been used. The process is based on the techniques of image processing and identification of algae. In this regard, due to the similarity of spectral reflectance of vegetation and chlorophyll algae, the band 4 and 5 and NDVI were used and the output of the index as input fan supervised classification maximum likelihood method was applied in the assessment of classification accuracy, overall accuracy 73 Kappa coefficient was 82.0 percent.