River-width determination by the use of optical remote sensing missions: A research based on the determination of sub-pixel accurate river-widths using optical remote sensing

River data on discharge and characteristics is essential for water management and water supply, as well as for flood prediction and flood control (Pan, Wang, and Xi 2016). In practice, many watersheds are ungauged due to high costs, inaccessibility and even due to political instability (Pan, Wang, and Xi 2016). For this reason, measuring...