Can CGCMs under CMIP5/6 simulate present-day sea level rise in western Maritime Continent? Yudha Setiawan Djamil (a*), Adinda Maharani (b), Tubagus Solihuddin (a), Martiwi Diah Setiawati (c), Aidy M Muslim (d), Tsuyoshi Eguchi (e), Uday Chatterjee (f), La Ode Alifatri (c)
a) Research Center for Climate and Atmosphere, National Research and Innovation Agency (BRIN), Bandung, Indonesia
*yudh006[at]brin.go.id
b) PT Geosagara Triptayasa, Bandung, Indonesia
c) Research Center for Oceanography, National Research and Innovation Agency (BRIN), Jakarta, Indonesia
d) Institute of Oceanography and Environment (INOS), Universiti Malaysia Terengganu (UMT), 21030 Kuala Terengganu, Terengganu, MALAYSIA
e) Center for Research and Application of Satellite Remote Sensing (YUCARS), Yamaguchi University, Ube city, Japan
f) Department of Geography, Bhatter College, Dantan, West Bengal, India
Abstract
Trends of present-day sea level anomaly (SLA) in western Maritime Continent based on the combination of global thermal expansion and ocean dynamics (steric/dynamic), simulated by Coupled Global Climate Models (CGCMs) under the Climate Model Intercomparison Project phase-5 and 6 (CMIP5/6), are evaluated by using satellite observation. Trends of SLA based on the steric/dynamic component of sea level underestimate the one observed by the satellite for the interior seas of western Maritime Continent. However, satellite observation is also known to overestimate the rate of sea level rise in this shallow basin. Thus, the actual trends of SLA in this area could be approximated based on its steric/dynamic component simulated by CGCMs such as ACCESS1-0 and MIROC-ESM.
