This paper includes material from a paper in a conference proceedings, Parker & Muto (2003); and its companion paper, Parker et al. (2008) includes material from another paper in a conference proceedings, Parker et al. (2004). The scope of the work has been greatly extended in the present paper and its companion.
Unravelling the conundrum of river response to rising sea-level from laboratory to field. Part I: Laboratory experiments
Article first published online: 6 MAY 2008
© 2008 The Authors. Journal compilation © 2008 International Association of Sedimentologists
Volume 55, Issue 6, pages 1643–1655, December 2008
How to Cite
PARKER, G., MUTO, T., AKAMATSU, Y., DIETRICH, W. E. and LAUER, J. W. (2008), Unravelling the conundrum of river response to rising sea-level from laboratory to field. Part I: Laboratory experiments. Sedimentology, 55: 1643–1655. doi: 10.1111/j.1365-3091.2008.00961.x
- Issue published online: 24 NOV 2008
- Article first published online: 6 MAY 2008
- Manuscript received 22 May 2006; revision accepted 31 January 2008
The most recent deglaciation resulted in a global sea-level rise of some 120 m over approximately 12 000 years. In this Part I of two parts, a moving boundary numerical model is developed to predict the response of rivers to this rise. The model was motivated by experiments at small scale, which have identified two modes describing the transgression of a river mouth: autoretreat without abandonment of the river delta (no sediment starvation at the topset–foreset break) and sediment-starved autoretreat with abandonment of the delta. In the latter case, transgression is far more rapid and its effects are felt much further upstream of the river mouth. The moving boundary numerical model is checked against experiments. The generally favourable results of the check motivate adaptation of the model to describe the response of the much larger Fly-Strickland River system, Papua New Guinea to Holocene sea-level rise; this is done in the companion paper, Part II.