+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

An Investigation of the Change in Tidal Signal in an Estuary as a Result of Sea Level Rise and Development at Short-Medium Time Scale

An Investigation of the Change in Tidal Signal in an Estuary as a Result of Sea Level Rise and Development at Short-Medium Time Scale

This paper highlights the impact of man-made and natural changes on the evolution of tidal signal at shortmedium timescale in a subtropical estuary. The study area is the Coomera River Estuarine system located on the eastern coast of Australia. Coomera River Estuary has been impacted by a range of developments at its lower reaches over the past 20 years. Sea level rise is expected to be another source of change for the estuary. Earlier studies suggest that Sea level can rise 81 cm over the next 70 years. Similar to man-made changes, sea level rise has potential impact on tidal signal and all the tidally influenced parameters. This study is focused on investigating the tidal regime change and potential bank stability implications resulting from the above mentioned natural and man made impacts. The results of harmonic analysis show that Coomera Estuary responses non-linearly to tidal forcing and is dominated by frictional forces. The non-linear response of the estuary has reduced over the past 20 years and is expected to remain relatively unchanged under sea level rise condition. Tidal analysis of the study area under sea level rise condition indicates that the Estuary will become more flood-dominant over the next 70 years and as a result the balance between flood tide influenced sediment infilling and ebb tide induced sediment flushing out of the estuary may shift towards having more sand deposited in the estuary.

Please choose payment method:

(PDF emailed within 1 workday: $29.90)

Accession: 036938444

Download citation: RISBibTeXText

Related references

Modeling assessment of a saltwater intrusion and a transport time scale response to sea-level rise in a tidal estuary. Environmental Fluid Mechanics 15(3): 491-514, 2015

Effect of sea level rise on tidal circulation in the Hooghly Estuary, Bay of Bengal. Marine Geodesy 20(4): 341-366, 1997

Short term sea level rise and marsh peat development in a southern New England tidal salt marsh. Abstracts with Programs - Geological Society of America 32(1): 63, 2000

Relative sea-level rise and tidal development in the Fundy tidal system. Canadian Journal of Earth Sciences 20(10): 1554-1564, 1983

Impacts of historic morphology and sea level rise on tidal hydrodynamics in a microtidal estuary (Grand Bay, Mississippi). Continental Shelf Research 111: 150-158, 2015

The impact of past management practices on tidal marsh resilience to sea level rise in the Delaware Estuary. Ocean & Coastal Management 149: 33-41, 2017

Expected changes in the benthic fauna of Wadden Sea tidal flats as a result of sea-level rise or bottom subsidence. Journal of Sea Research 47(1): 25-39, 2002

Holocene sea level rise, basin submergence, and evolution of Delaware Bay estuary and associated tidal wetlands; history of inundation, aggradation, and erosion. Eos, Transactions, American Geophysical Union 70(43): 1051, 1989

Salt marsh vegetation change after a short-term tidal restriction in the Changjiang estuary. Wetlands 23(2): 257-266, 2003

Vertical saltmarsh accretion and its relationship to sea-level in the Severn Estuary, U.K.: An investigation using foraminifera as tidal indicators. Estuarine Coastal and Shelf Science 52(1): 143-153, 2001

Long-term area change of two tidal flats in Japan and its future projection due to sea level rise. Journal of Coastal Research 165: 1975-1980, 2013

Change of benthic macro-invertebrate community in a salt marsh of the Changjiang estuary after a short-term tidal restriction. International Journal of Ecology and Environmental Sciences. June; 272: 105-110, 2001

Tidal peats of the Pine Creek Marsh, Raritan Estuary, New Jersey; evidence of late Holocene sea level change. Abstracts with Programs - Geological Society of America 27(1): 60, 1995

Sea-level rise as a result of mineral resource development. Vestnik Rossiyskoy Akademii Nauk 65(7): 626-630, 1995

Estuarine marsh and tidal-flat change in response to relative sea-level rise, central Texas Gulf Coast. Geological Society of America 43.3, 2011