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Monitoring Amu Darya river channel dynamics using remote sensing data in Google Earth Engine
* 1 , 2
1  Eskisehir Technical University, Institute of Higher Education
2  Eskisehir Technical University, Institute of Earth and Space Sciences


River morphological dynamics result from processes involving discharge flow, debris and sediment transport, channel migration, and floodplain erosion and accretion. Understanding the river channel dynamics is an essential component of the development of the most environmentally acceptable and sustainable fluvial projects. In this study, part of the Amu Darya river channel dynamics using remote sensing data have been investigated. For this purpose, satellite imagery from four different periods ten years apart (1990-2000, 2000-2011, 2011-2020), have been used to map and monitor the dynamics of the river over the last three decades. The classification of the images was conducted in Google Earth Engine (GEE) using Landsat imagery. In addition to the river mapping and monitoring, a land cover change detection in the study area has been made. The results showed that the increase in irrigated areas, in the four specified periods was significant and played an important role in increasing the vulnerability of the study area to soil erosion which leads to river channel dynamics. The results showed that the use of Landsat and GEE can be a significant source of updated data for mapping and monitoring river dynamics, with a classification accuracy of the water areas higher than 90%. For future studies, we recommend using satellite imagery with a higher spatial and spectral resolution, like Sentinel.

Keywords: Remote Sensing; Amu Darya; River dynamics; Google Earth Engine
Comments on this paper
Bojan Đurin
Comment - Bojan Đurin, University North, Croatia.
Dear colleagues,
thank you for the video of the presentation.
Interesting research-I must admit; not only from a scientific and practical point, but as well as from personal.
Three year ago I was on an Erasmus exchange at TIIAME in Tashkent, Uzbekistan.
Also, I am still collaborating with colleagues from TIIAME.
River Amu Darya has big importance for Uzbekistan, due to the hydro energy potential, as well as for irrigation.
Please, could you be so kind and tell me what are your next plans for further research? Numerical calculation, time series analysis or something third. I would be happy to hear your thoughts.
Also, if you find time to see my paper in this session, I would be very grateful, especially if you will have some comments on it.
Kind regards,

Gordana Kaplan
Dear colleague,

Thank you for your interest in our study. This is a part of my students' master thesis. It is still an ongoing investigation.
What we are planning now is to assess the dynamics of the river on the right and left bank of the river, and determine points that haven't been changed since 1990. That will be added to the time-series analyses and numerical calculations that we already made in the frame of the study.

If you want to keep in touch and see the final outcomes of the study, please follow me researchgate.
Kind regards, Gorde
Bojan Đurin
Dear Ms Gordana Jovanovska Kaplan,
thank you very much for reply.
Sure, it would be very nice to see how research is going.
Nice regards,