0 引言
1 数据与方法
2 结果
2.1 海温和海表风场分布差异
2.2 次表层温度差异
图4 赤道太平洋(2°S—2°N)次表层海温异常以及20 ℃等温线深度(紫色线表示20 ℃等温线深度的各年冬季均值,黑色粗线表示20 ℃等温线深度的气候态。) Fig.4 The subsurface ocean temperature anomaly and the 20 ℃ isotherm depth between 2°S and 2°N over the tropical Pacific (The purple line represents the mean value of 20 ℃ isotherm depth in winter of each year and the black thick line indicats the climatological state of the 20 ℃ isotherm depth.) |
图5 2020年1月—2023年5月热带太平洋2°N—2°S平均20 ℃等温线深度异常(正值代表温跃层加深,负值表示温跃层变浅。) Fig.5 The averaged 20 ℃ isotherm depth anomaly between 2°N and 2°S over the tropical Pacific from January 2020 to May 2023 (Positive value indicates deepening thermocline, while negative value indicates shallowing thermocline.) |