First‐Order River Delta Morphology Is Explained by the Sediment Flux Balance From Rivers, Waves, and Tides
First‐Order River Delta Morphology Is Explained by the Sediment Flux Balance From Rivers, Waves, and Tides
复制标题
河流、波浪和潮汐的沉积物通量平衡解释了一级河三角洲形态
DOI:
10.1029/2022gl100355
复制
发表时间:
2022
影响因子:
5.2
通讯作者:
Edmonds, D. A.
中科院分区:
文献类型:
--
作者:
Broaddus, C. M.;Vulis, L. M.;Nienhuis, J. H.;Tejedor, A.;Brown, J.;Foufoula‐Georgiou, E.;Edmonds, D. A.
We present a novel quantitative test of a 50‐year‐old hypothesis which asserts that river delta morphology is determined by the balance between river and marine influence. We define three metrics to capture the first‐order morphology of deltas (shoreline roughness, number of distributary channel mouths, and presence/absence of spits), and use a recently developed sediment flux framework to quantify the river‐marine influence. Through analysis of simulated and field deltas we quantitatively demonstrate the relationship between sediment flux balance and delta morphology and show that the flux balance accounts for at least 35% of the variance in the number of distributary channel mouths and 42% of the variance in the shoreline roughness for real‐world and simulated deltas. We identify a tipping point in the flux balance where wave influence halts distributary channel formation and show how this explains morphological transitions in real world deltas.
登录
查看更多内容
影响因子:
16.6
作者:
Edmonds DA;Caldwell RL;Brondizio ES;Siani SMO
通讯作者:
Siani SMO
影响因子:
56.9
作者:
Tessler, Z. D.;Voeroesmarty, C. J.;Foufoula-Georgiou, E.
通讯作者:
Foufoula-Georgiou, E.
影响因子:
3.4
作者:
Rebecca L. Caldwell;D. Edmonds;S. Baumgardner;C. Paola;Samapriya Roy;J. Nienhuis
通讯作者:
Rebecca L. Caldwell;D. Edmonds;S. Baumgardner;C. Paola;Samapriya Roy;J. Nienhuis
影响因子:
3.9
作者:
Hoitink, A. J. F.;Nittrouer, J. A.;van Maren, D. S.
通讯作者:
van Maren, D. S.
影响因子:
3.9
作者:
M. Liang;V. Voller;C. Paola
通讯作者:
C. Paola