Changing Tides: The Role of Natural and Anthropogenic Factors

Tides are changing worldwide at rates not explained by astronomical forcing. Rather, the observed evolution of tides and other long waves, such as storm surges, is influenced by shelf processes and changes to the roughness, depth, width, and length of embayments, estuaries, and tidal rivers. In this...

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Bibliographic Details
Published in:Annual review of marine science 2020-01, Vol.12 (1), p.121-151
Main Authors: Talke, Stefan A, Jay, David A
Format: Article
Language:English
Subjects:
Amplitude
Amplitudes
anthropogenic effects
Anthropogenic factors
Bays
Bottom trawling
Climate Change
Coastal management
Coastal zone management
Depth
Dredging
Dynamics
Ecosystem
Environmental changes
Estuaries
Evolution
Flood waves
Floods
Friction
Human influences
Intrusion
Measuring instruments
Properties
Reclamation
Rivers
Roughness
Sea level
Sea level rise
Sediment transport
storm surge
Storm surges
Storms
System effectiveness
Tidal amplitude
Tidal rivers
Tidal waterways
Tidal Waves
Tides
Wave reflection
Wetlands
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Summary:Tides are changing worldwide at rates not explained by astronomical forcing. Rather, the observed evolution of tides and other long waves, such as storm surges, is influenced by shelf processes and changes to the roughness, depth, width, and length of embayments, estuaries, and tidal rivers. In this review, we focus on processes in estuaries and tidal rivers, because that is where the largest changes to tidal properties are occurring. Recent literature shows that changes in tidal amplitude have been ubiquitous worldwide over the past century, often in response to wetland reclamation, channel dredging, and other environmental changes. While tidal amplitude changes are sometimes slight (
ISSN:1941-1405
1941-0611
DOI:10.1146/annurev-marine-010419-010727