Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Comprehensive Understanding of the Planform Complexity of the Anastomosing River and the Dynamic Imprint of the River’s Flow: Brahmaputra River in Bangladesh

Version 1 : Received: 11 May 2022 / Approved: 12 May 2022 / Online: 12 May 2022 (08:03:34 CEST)

How to cite: Sarker, S.; Sarker, T.; Raihan, S.U. Comprehensive Understanding of the Planform Complexity of the Anastomosing River and the Dynamic Imprint of the River’s Flow: Brahmaputra River in Bangladesh. Preprints 2022, 2022050162 (doi: 10.20944/preprints202205.0162.v1). Sarker, S.; Sarker, T.; Raihan, S.U. Comprehensive Understanding of the Planform Complexity of the Anastomosing River and the Dynamic Imprint of the River’s Flow: Brahmaputra River in Bangladesh. Preprints 2022, 2022050162 (doi: 10.20944/preprints202205.0162.v1).

Abstract

The Brahmaputra is one of the largest rivers in the world, ranking fifth in average discharge. As a result, it is heavily braided with various intricate paths in order to dissipate its huge energy. Although this river is normally classed as a braided river, it has recently been classified as an anastomosing river due to its multi-channel features over alluvial plains. Additionally, the Brahmaputra river’s morphology is random in nature as a result of its high flow variability and bank erodibility. Its anastomosing planform changes in response to seasonal water and sediment waves, resulting in a morphology that is extremely complex. The purpose of this study is to examine the Brahmaputra river’s anastomosing planform entropy as a measure of complexity, power spectral density as a measure of fluctuation and their relationship to the energy expenditure as an imprint of flflow rate of river systems on alluvial landscapes.

Keywords

anastomosing; erodibility; planform; Fourier transform; power spectral density; sample entropy; approximate entropy

Subject

EARTH SCIENCES, Other

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