TY - GEN
T1 - COASTAL WAVE OVERTOPPING: NEW NOWCAST AND MONITORING TECHNOLOGIES
AU - Brown, Jennifer
AU - Yelland, Margaret
AU - Masselink, Gerd
AU - Poate, Tim
AU - Stokes, Kit
AU - Pascal, Robin
AU - Jones, David
AU - Cardwell, Christopher
AU - Walk, John
AU - Martin, Barry
AU - Ganderton, Peter
AU - Darroch, Louise
AU - Gardner, Tom
N1 - Publisher Copyright:
© 2023 American Society of Civil Engineers (ASCE). All rights reserved.
PY - 2023/9/1
Y1 - 2023/9/1
N2 - It is projected that global mean sea level could rise up to 1 m this century with a strong regional pattern. It is estimated that 20% of England's coastal defenses could fail under just half this rise. Ambitious climate mitigation and adaptation plans may protect 400,000 - 500,000 people, but flood and coastal erosion risks cannot be fully eliminated. Building coastal climate resilience requires accurate wave overtopping prediction tools and nowcast information to prepare for and respond to coastal hazards. In Dawlish, SW England, a new monitoring system to measure concurrent beach level and wave overtopping conditions over a 1-year period was installed. The system obtains in-situ measurements of the inland wave overtopping distribution across a public walkway and railway line, and issues near real-time overtopping data to the British Oceanographic Data Centre, making it accessible online within 15 minutes of detection. This public web service also ingests near-real time wave and water level data from existing national coastal monitoring networks, providing a full dataset to validate and calibrate an operational wave, water-level and overtopping forecast system. Using these data, the numerical forecasts have been refined by incorporating recent beach levels to reduce the uncertainty in the wave overtopping predictions due to seasonal variability in the beach level at the toe of the sea wall.
AB - It is projected that global mean sea level could rise up to 1 m this century with a strong regional pattern. It is estimated that 20% of England's coastal defenses could fail under just half this rise. Ambitious climate mitigation and adaptation plans may protect 400,000 - 500,000 people, but flood and coastal erosion risks cannot be fully eliminated. Building coastal climate resilience requires accurate wave overtopping prediction tools and nowcast information to prepare for and respond to coastal hazards. In Dawlish, SW England, a new monitoring system to measure concurrent beach level and wave overtopping conditions over a 1-year period was installed. The system obtains in-situ measurements of the inland wave overtopping distribution across a public walkway and railway line, and issues near real-time overtopping data to the British Oceanographic Data Centre, making it accessible online within 15 minutes of detection. This public web service also ingests near-real time wave and water level data from existing national coastal monitoring networks, providing a full dataset to validate and calibrate an operational wave, water-level and overtopping forecast system. Using these data, the numerical forecasts have been refined by incorporating recent beach levels to reduce the uncertainty in the wave overtopping predictions due to seasonal variability in the beach level at the toe of the sea wall.
KW - beach levels
KW - coastal hazards
KW - early warning
KW - wave overtopping
UR - http://www.scopus.com/inward/record.url?scp=85181536011&partnerID=8YFLogxK
M3 - Conference proceedings published in a book
AN - SCOPUS:85181536011
T3 - Proceedings of the Coastal Engineering Conference
BT - Proceedings of the Coastal Engineering Conference
A2 - Cox, Daniel
PB - American Society of Civil Engineers (ASCE)
T2 - 37th International Conference on Coastal Engineering, ICCE 2022
Y2 - 4 December 2022 through 9 December 2022
ER -
