@inproceedings{3755d97b378c421f993f346cfceda1f5,
title = "Modeling plan-form deltaic response to changes in fluvial sediment supply",
abstract = "This study focuses on the effects of changes in fluvial sediment supply on the plan-form shape of wave-dominated deltas. We apply a one-line numerical shoreline model to calculate shoreline evolution after (I) elimination and (II) time-periodic variation of fluvial input. Model results suggest four characteristic modes of wave-dominated delta development after abandonment. The abandonment mode is determined by the pre-abandonment downdrift shoreline characteristics and wave climate (which are, in turn, determined by previous delta evolution). For asymmetrical deltas experiencing shoreline instability on the downdrift flank, time-periodic variation in fluvial input influences the evolution of downdrift-migrating sandwaves. The frequency and magnitude of the riverine {"}forcing{"} can initiate a pattern that migrates away from the river mouth, interacting with the development of shoreline sandwaves. Model results suggest that long-period signals in fluvial delivery can be shredded by autogenic sand waves, whereas shorter-term riverine fluctuations can dominate the signal of the autogenic sandwaves. The insights provided by these exploratory numerical experiments provide a set of hypotheses that can be further tested using natural examples.",
author = "J.H. Nienhuis and A.D. Ashton and Roos, {Pieter C.} and Hulscher, {Suzanne J.M.H.} and L. Giosan",
year = "2012",
month = mar,
day = "13",
doi = "10.3990/2.192",
language = "English",
isbn = "978-90-365-3342-3",
pages = "173--176",
editor = "W.M. Kranenburg and E.M. Horstman and K.M. Wijnberg",
booktitle = "NCK-days 2012. Crossing borders in coastal research",
publisher = "University of Twente",
address = "Netherlands",
note = "NCK-Days 2012 : Crossing borders in coastal research ; Conference date: 13-03-2012 Through 16-03-2012",
}