TY - JOUR
T1 - Waves in SKRIPS
T2 - WAVEWATCH III coupling implementation and a case study of Tropical Cyclone Mekunu
AU - Sun, Rui
AU - Cobb, Alison
AU - Bôas, Ana B.Villas
AU - Langodan, Sabique
AU - Subramanian, Aneesh C.
AU - Mazloff, Matthew R.
AU - Cornuelle, Bruce D.
AU - Miller, Arthur J.
AU - Pathak, Raju
AU - Hoteit, Ibrahim
N1 - Publisher Copyright:
© Copyright 2023 Authors
PY - 2023/6/20
Y1 - 2023/6/20
N2 - In this work, we integrated the WAVEWATCH III model into the regional coupled model SKRIPS (Scripps-KAUST Regional Integrated Prediction System). The WAVEWATCH III model is implemented with flexibility, meaning the coupled system can run with or without the wave component. In our implementations, we considered the effect of Stokes drift, Langmuir turbulence, sea surface roughness, and wave-induced momentum fluxes. To demonstrate the impact of coupling we performed a case study using a series of coupled and uncoupled simulations of Tropical Cyclone Mekunu, which occurred in the Arabian Sea in May 2018. We examined the model skill in these simulations and further investigated the impact of Langmuir turbulence in the coupled system. Because of the chaotic nature of the atmosphere, we ran an ensemble of 20 members for each coupled and uncoupled experiment. We found that the characteristics of the tropical cyclone are not significantly different due to the effect of surface waves when using different parameterizations, but the coupled models better capture the minimum pressure and maximum wind speed compared with the benchmark stand-alone Weather Research and Forecasting (WRF) model. Moreover, in the region of the cold wake, when Langmuir turbulence is considered in the coupled system, the sea surface temperature is about 0.5 ° C colder, and the mixed layer is about 20 m deeper. This indicates the ocean model is sensitive to the parameterization of Langmuir turbulence in the coupled simulations.
AB - In this work, we integrated the WAVEWATCH III model into the regional coupled model SKRIPS (Scripps-KAUST Regional Integrated Prediction System). The WAVEWATCH III model is implemented with flexibility, meaning the coupled system can run with or without the wave component. In our implementations, we considered the effect of Stokes drift, Langmuir turbulence, sea surface roughness, and wave-induced momentum fluxes. To demonstrate the impact of coupling we performed a case study using a series of coupled and uncoupled simulations of Tropical Cyclone Mekunu, which occurred in the Arabian Sea in May 2018. We examined the model skill in these simulations and further investigated the impact of Langmuir turbulence in the coupled system. Because of the chaotic nature of the atmosphere, we ran an ensemble of 20 members for each coupled and uncoupled experiment. We found that the characteristics of the tropical cyclone are not significantly different due to the effect of surface waves when using different parameterizations, but the coupled models better capture the minimum pressure and maximum wind speed compared with the benchmark stand-alone Weather Research and Forecasting (WRF) model. Moreover, in the region of the cold wake, when Langmuir turbulence is considered in the coupled system, the sea surface temperature is about 0.5 ° C colder, and the mixed layer is about 20 m deeper. This indicates the ocean model is sensitive to the parameterization of Langmuir turbulence in the coupled simulations.
UR - http://www.scopus.com/inward/record.url?scp=85164263789&partnerID=8YFLogxK
U2 - 10.5194/gmd-16-3435-2023
DO - 10.5194/gmd-16-3435-2023
M3 - Article
AN - SCOPUS:85164263789
SN - 1991-959X
VL - 16
SP - 3435
EP - 3458
JO - Geoscientific Model Development
JF - Geoscientific Model Development
IS - 12
ER -