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Evaluation of onset, cessation and seasonal precipitation of the Southeast Asia rainy season in CMIP5 regional climate models and HighResMIP global climate models
Author(s) -
Hariadi Mugni Hadi,
Schrier Gerard,
Steeneveld GertJan,
Sopaheluwakan Ardhasena,
Tank Albert Klein,
Roberts Malcolm John,
Moine MariePierre,
Bellucci Alessio,
Senan Retish,
Tourigny Etienne,
Putrasahan Dian
Publication year - 2022
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.7404
Subject(s) - coupled model intercomparison project , climatology , precipitation , anomaly (physics) , wet season , climate model , environmental science , monsoon , tropics , general circulation model , east asia , climate change , geography , meteorology , china , geology , oceanography , physics , cartography , archaeology , condensed matter physics , fishery , biology
Abstract Representing the rainy season of the maritime continent is a challenge for global and regional climate models. Here, we compare regional climate models (RCMs) based on the coupled model intercomparison project phase 5 (CMIP5) model generation with high‐resolution global climate models with a comparable spatial resolution from the HighResMIP experiment. The onset and the total precipitation of the rainy season for both model experiments are compared against observational datasets for Southeast Asia. A realistic representation of the monsoon rainfall is essential for agriculture in Southeast Asia as a delayed onset jeopardizes the possibility of having three annual crops. In general, the coupled historical runs (Hist‐1950) and the historical force atmosphere run (HighresSST) of the high‐resolution model intercomparison project (HighResMIP) suite were consistently closer to the observations than the RCM of CMIP5 used in this study. We find that for the whole of Southeast Asia, the HighResMIP models simulate the onset date and the total precipitation of the rainy season over the region closer to the observations than the other model sets used in this study. High‐resolution models in the HighresSST experiment showed a similar performance to their low‐resolution equivalents in simulating the monsoon characteristics. The HighresSST experiment simulated the anomaly of the onset date and the total precipitation for different El Niño‐southern oscillation conditions best, although the magnitude of the onset date anomaly was underestimated.