利用验潮站资料评估全球海潮模型的精度

摘要

Due to the availability of multi-satellite altimetry and advances in numerical simulation methodologies in recent 20 years, recent global ocean tide models are well known to 2 cm RSS(root square of the sum of the squares of the 8 rms values) and with a spatial resolution of 50 km in deep ocean. The paper is aimed to validate the performance of five models by using tide gauge data. The results show that the performance of NAO99b is best in China sea areas, its RSS is 14. 86 cm. Compared with other contemporary models, EOTlOa fit the tide gauge da-la in global distribution better.%利用传统验潮站数据对5个全球海洋潮汐模型NA099b、FES2004、GOT4.7、TPX07.2和EOT10a进行精度评估,结果表明:现在的全球海洋潮汐模型相比早期的海潮模型均取得了较大进步,在深海海域,模型精度达到了2 cm,空间分辨率为50 km.在中国海域,NA099b的精度最高,RSS为14.86cm.EOTlOa在全球海洋范围综合指标最优,能较好地反映全球海洋潮汐的分布.