Monthly average of sea level measurements from San Diego Harbor, the sea level average seasonal cycle, and the long term trend are presented, 1906 - March 2017 (ongoing).

Monthly average sea level measurements, and derived sea-level anomolies from San Diego Harbor's station (32°42.80N, 117°10.40W) is obtained from the University of Hawai’i Sea Level Center. The sea level average seasonal cycle and the long term trend are calculated (mm) from the monthly averages obtained from the GLOSS/CLIVAR (formerly known as the WOCE) "fast" sea level database - University of Hawaii Sea Level Center. The resulting anomalies of de-trended sea level are used as a mid-latitude index of El Niño.

本数据集包含圣迭戈港观测站（32°42.80′N，117°10.40′W）的月均海平面观测数据，以及由此衍生的海平面异常值，所有数据均由夏威夷大学海平面中心（University of Hawai’i Sea Level Center）提供。研究人员从GLOSS/CLIVAR（前身为WOCE）“快速”海平面数据库中获取月均数据，并据此计算得到海平面平均季节循环与长期趋势，单位为毫米；该数据库由夏威夷大学海平面中心维护。最终得到的去趋势海平面异常值，被用作厄尔尼诺（El Niño）的中纬度指数。