Tropical cyclones (TC) have a serious impact on economy and social life and thus has drawn considerable public concern.
Tropical cyclones (TC) have a serious impact on economy and social life and thus has drawn considerable public concern. According to The Atlas of Mortality and Economic Losses from Weather, Climate and Water Extremes (1970–2019) published by the World Meteorological Organization (WMO) September 2021, in the past 50 years, three of the top ten global disasters were caused by TC, and seven of the top ten disasters with most economic losses were also caused by TC.
TC has become more intense and frequent under the background of global warming, the simulation and prediction of TC has become particularly important and is an international frontier hotspot. However, due to the huge biases of simulated TC in the global climate model, there are still huge challenges in accurately simulating and predicting TC activities.
The modeling team at the State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG) of the Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS) developed a new generation global climate system model of LASG named CAS FGOALS-f3-H. Their recent study published in Geoscientific Model Development shows that this 25 km high-resolution climate system model can simulate the global TC activities in finer ways as compared to that at low resolution, capturing and reproducing more realistic features of TC activities.
Researchers assessed the TC performance simulated by CAS FGOALS-f3-H. Based on the FGOALS-f3 simulation in the medium resolution (CAS FGOALS-f3-L, the horizontal resolution is about 100 km) and the high resolution (CAS FGOALS-f3-H, the average horizontal resolution is about 25 km), they quantitatively evaluated the impact of the horizontal resolution of the FGOALS-f3 on the TC simulation capabilities and analyzed the possible causes of the horizontal resolution on the TC simulation capabilities.
Read more at Institute of Atmospheric Physics, Chinese Academy of Sciences
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