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Type
ArticleAuthors
Langodan, Sabique
Antony, Charls
PR, Shanas
Dasari, Hari Prasad

Abualnaja, Yasser
Knio, Omar

Hoteit, Ibrahim

KAUST Department
Applied Mathematics and Computational Science ProgramBeacon Development Company
Biological and Environmental Sciences and Engineering (BESE) Division
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Earth Fluid Modeling and Prediction Group
Earth Science and Engineering Program
Physical Science and Engineering (PSE) Division
Red Sea Research Center (RSRC)
KAUST Grant Number
REP/1/3268-01-01RGC/3/1612-01-01
Date
2020-05-01Online Publication Date
2020-05-01Print Publication Date
2020-07Embargo End Date
2022-05-01Submitted Date
2019-07-11Permanent link to this record
http://hdl.handle.net/10754/662777
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Show full item recordAbstract
The coastal areas of the Red Sea are characterized by shallow banks of fringing and barrier reefs that provide protection against coastal hazards and erosion by dissipating wave energy. This study investigates the wave climate and extremes of a reef-protected coastal zone in the Red Sea using a high-resolution coupled wave and circulation model, ADCIRC + SWAN, configured on an unstructured grid forced with the meteorological fields from high-resolution regional atmospheric model. Our simulations suggest that the relatively narrow offshore reefs with steep fore-reef slopes dissipate 40–50% of the wave energy propagating towards the shoreline, and this is more pronounced during extremes. The impact of the coupling on determining the wave climate is negligible, but is significant for storms with ~10 cm higher significant wave height (Hs) during the observed period. The back-reef wave climatology computed from 30-year model simulations shows that the mean Hs distribution is uniform throughout the year, and extremes occur more often from February to May. Different return levels of Hs in the sheltered areas are estimated using extreme value analysis. Our results emphasize that preserving the complex offshore reefs is crucial for mitigating the coastal hazards of high-energy waves which are projected to increase with climate change.Citation
Langodan, S., Antony, C., PR, S., Dasari, H. P., Abualnaja, Y., Knio, O., & Hoteit, I. (2020). Wave modeling of a reef-sheltered coastal zone in the Red Sea. Ocean Engineering, 207, 107378. doi:10.1016/j.oceaneng.2020.107378Sponsors
This research was supported by funds from Office of Sponsored research (ORS) at King Abdulla University of Science and Technology (KAUST) under the Virtual Red Sea Initiative (Grant # REP/1/3268-01-01), the Saudi General Commission of Survey (GCS) under Project # RGC/3/1612-01-01, and King Abdullah Economic City (KAEC) under Project # RC/3/3237-01-01. It also made use of the Supercomputing Laboratory and computer clusters at KAUST.Publisher
Elsevier BVJournal
Ocean EngineeringAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S002980182030408Xae974a485f413a2113503eed53cd6c53
10.1016/j.oceaneng.2020.107378