Editing Brahmaputra River (section)

====Discharge====
{{unreferenced section|date=June 2023}}
[[File:Naokhel At sualkuchi.jpg|thumb|Rowing competition of [[Sualkuchi]] at Brahmaputra River]]
The Brahmaputra River is characterized by its significant rates of sediment discharge, the large and variable flows, along with its rapid channel aggradations and accelerated rates of basin denudation. Over time, the deepening of the Bengal Basin caused by erosion will result in the increase in hydraulic radius, and hence allowing for the huge accumulation of sediments fed from the Himalayan erosion by efficient sediment transportation. The thickness of the sediment accumulated above the Precambrian basement has increased over the years from a few hundred meters to over {{cvt|18|km|abbr=on}} in the Bengal fore-deep to the south. The ongoing subsidence of the Bengal Basin and the high rate of Himalayan uplift continues to contribute to the large water and sediment discharges of fine sand and silt, with 1% clay, in the Brahmaputra River.

Climatic change plays a crucial role in affecting the basin hydrology. Throughout the year, there is a significant rise in hydrograph, with a broad peak between July and September. The Brahmaputra River experiences two high-water seasons, one in early summer caused by snowmelt in the mountains, and one in late summer caused by runoff from monsoon rains. The river flow is strongly influenced by snow and ice melting of the glaciers, which are located mainly on the eastern Himalaya regions in the upstream parts of the basin. The snow and glacier melt contribution to the total annual runoff is about 27%, while the annual rainfall contributes to about {{cvt|1.9|m|abbr=on}} and {{cvt|22,000|m3/s|cuft/s|abbr=on}} of discharge.<ref name="Flood Inundation Mapping of the Sparsely Gauged Large-Scale Brahmaputra Basin Using Remote Sensing Products">{{cite journal|journal=Remote Sensing|doi=10.3390/rs11050501|last1=Biswa|first1=Bhattacharya|last2=Maurizio|first2=Mazzoleni|last3=Reyne|first3=Ugay|title=Flood Inundation Mapping of the Sparsely Gauged Large-Scale Brahmaputra Basin Using Remote Sensing Products|date=2019|volume=11|issue=5|page=501 |doi-access=free |bibcode=2019RemS...11..501B }}</ref> The highest recorded daily discharge in the Brahmaputra at Pandu was {{cvt|72,726|m3/s|cuft/s|abbr=on}} August 1962 while the lowest was {{cvt|1,757|m3/s|cuft/s|abbr=on}} in February 1968. The increased rates of snow and glacial melt are likely to increase summer flows in some river systems for a few decades, followed by a reduction in flow as the glaciers disappear and snowfall diminishes. This is particularly true for the dry season when water availability is crucial for the irrigation systems.