Tuning bankfull flow to climate as a path to better estimates of source-to-sink mass flux
Wilson, Nicole Oma,author.
Wilson, Nicole Oma,author.
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2018
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Abstract
Quantifying source-to-sink sediment flux for stratigraphic systems is critical for accurate basin models, but all available methods are hampered by low precision and most require data not readily attained. The Fulcrum approach uses commonly collected data but similarly yields only approximate flux estimates. In order to calculate a more precise source-to-sink estimate for long basin durations, the amount of time the fluvial systems runs at bankfull flow and the annual proportion of sediment discharged during this bankfull flow must be determined. By categorizing fluvial systems by attributes such as drainage area and paleoclimate at the time of discharge, a more specified and accurate bankfull flow duration and total bankfull discharge is estimated. We constructed a database that stores and categorizes these data and a user interface to query and display this data. The database can thus yield a more accurate value for duration and discharge at bankfull flow from modern rivers to be used as an analogue for stratigraphic rivers with interpreted climate and size parameters.
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1 online resource (vii, 180 pages) :
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Geological Sciences