Irrigation and Melioration


Water resources have become a very big problem in every part of Uzbekistan for several decades. Water is used not only exclusively for agricultural development, but also for many other purposes, such as industrial and chemical activities. Therefore, it is important to study the properties of surface water objects using optical and microwave satellite images. The Syrdarya region was selected for research. Because in the past, there have been no studies of water bodies using satellite images. The article presents the results of studies on the assessment of water properties from optical and microwave satellite images. In research for optical images, digital image processing technologies based on the ratio of ranges, which are known as spectral indexes, were used. Water indexes are designed to highlight water objects in remote sensing optical images. Water indexes are widely used for mapping water bodies, ponds, rivers, lakes, etc. Images of Landsat-8 OLI (Operational Land Imager) data sources were uploaded, which are freely available on the US Geological survey website. The SAR (Synthetic Aperture Radar) Sentinel- 1A data was downloaded from the archives of Alaskan satellite objects. After preliminary processing of the SAR data, the image was classified and water features were extracted.

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