Riverscape Boundaries Identification Based on Physical Factors of River and City: A Case Study of The Yom River and Mueang Phrae

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Nuttapong Sirisompornkong
Danai Thaitakoo


Human settlements are related to riverscape in many dimensions, especially the ecological dimension. The identification of riverscape boundaries is therefore important to identify positive and negative riverscape conditions on human settlements. Riverscape boundaries can be identified by the river geomorphological conditions, including characteristics of the river, such as water level and hydrological regime. These characteristics can be identified clearly by the topographical analysis method.

This study aims to identify riverscape boundaries by comparing (1) cross section graphs constructed from digital elevation model: FABDEM, (2) land cover classification map using Landsat 8 imagery data to determine the spatial relationship between the Yom River and human settlement of Mueang Phrae. The results show that Phrae old town was located on the Yom River terrace, near floodplain area. This area had an easy access to the river and was not affected by impacts of the river dynamics. However, the built-up areas have been expanding into the Yom River boundaries, which will  result in negative impacts on the city and the riverscape in the future.

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