Bankfull discharge estimation is a crucial step in river basin management. Such evaluation can be carried out using hydrological and hydraulic modelling to estimate flow-depths, flow velocities flood prone areas related specific return period. However, different methodological approaches are described the scientific literature. typically based either on assumption that bankfull corresponds narr...

Numerous sedimentary fans on Mars have been studied to better understand the early martian hydrological system. Of particular interest is estimate duration of fluvial activity from alluvial fan size by dividing deposit volume bankfull sediment flux. However, such a calculation requires an intermittency factor—a parameter relating discharge channel-filling (bankfull) floods long-term mean discha...

First posted February 28, 2023 For additional information, contact: Director, Oklahoma-Texas Water Science CenterU.S. Geological Survey1505 Ferguson LaneAustin, TX 78754–4501Contact Pubs Warehouse In 2021, the U.S. Survey (USGS), in cooperation with Bandera County River Authority and Groundwater District Texas Development Board, studied floods to produce a library of flood-inundation maps for S...

A floodplain is an area of low-lying land adjacent to a river, stream, or other water body that regularly inundated by during periods high flow. Floodplains typically have relatively flat terrain and are composed sediments deposited the river over time. Floodplain flow refers movement across surface This can occur as result spilling banks seeping into ground then re-emerging on floodplain. Bank...