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取１９５９年为接口，将澳门的前段记录（１９２５～１９５８年）与香港的后段记录（１９５９～１９９６年）连接起来，统一按香港海图基准面起算，可以得到最近７２年（１９２５～１９５８年）均一的海平面月均序列。海平面曲线反映海平面呈波动上升趋势，其中存在异常高海平面和异常低海平面。按香港和澳门的验潮资料，海平面上升速率为１．８±０．１ｍｍ／ａ。海滩岩的高程、地震活动、地形变化表明：香港和澳门地区的构造处于相对平稳状态，因此，１．８±０．１ｍｍ／ａ可以认为是华南沿海理论海平面的上升速率
Taking the interface of 1959 as an interface, connecting the front records of Macao (1925 ~ 1958) with the records of Hong Kong’s later records (1959 ~ 1996), and starting from the baseline of Hong Kong chart, we can get the statistics of the last 72 years (1925 ~ 1958 Year) uniform sea level monthly average sequence. The sea level curve reflects the upward trend of sea level fluctuation, in which there are abnormally high sea level and abnormally low sea level. According to the tide data of Hong Kong and Macao, the sea level rise rate is 1.8 ± 0.1mm / a. The elevation of the beach rocks, the seismic activity and the topographic changes indicate that the structures of Hong Kong and Maucao are relatively stable. Therefore, 1.8 ± 0.1mm / a can be considered as the theoretical sea level rise rate