南大洋海温长期变化研究进展

龙上敏, 刘秦玉, 郑小童, 程旭华, 白学志, 高臻

Research Progress of Long-term Ocean Temperature Changes in the Southern Ocean

Shangmin Long, Qinyu Liu, Xiaotong Zheng, Xuhua Cheng, Xuezhi Bai, Zhen Gao

图7 CMIP5与CMIP6模式对南大洋SST的模拟偏差图 （a）历史时期（1979—2005年）CMIP5多模式集合平均与观测（ERSST v5）之差；（b）CMIP6多模式集合平均（MME）与观测之差；（c）CMIP6与CMIP5的MME之差（即两代模式模拟偏差的变化）；（d）CMIP6相对于CMIP5模式模拟偏差变化的百分比（%）；所有的黑色等值线均为图7a中CMIP5模式的SST模拟偏差等于0的位置；CMIP5和CMIP6模式均为27个，且CMIP6中的各个模式均为CMIP5中对应模式的升级版本

Fig.7 Model biases of Southern Ocean SST in CMIP5 and CMIP6 Differences in annual-mean climatology (1979-2005 mean) SST between (a) CMIP5 MME and observation (ERSST v5)； (b) CMIP6 MME and observation and (c) CMIP6 MME and CMIP5 MME； (d) The percentage change in the CMIP6 model bias relative to that from CMIP5； Black contours in all panels are the zero contour in Figure 7a； The number of models for the MME is 27 for both CMIP5 and CMIP6, with each CMIP6 model being the updated version from its family predecessor in CMIP5