Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 4

This dataset contains along track geo-referenced Sea Surface Height Anomalies (SSHA) from TOPEX/Poseidon, Jason-1 and OSTM/Jason-2 (depending on time period) merged into a single mean reference orbit. All biases and cross-calibrations have been applied to the data so SSHA are consistent between satellites to form a single climate data record. Altimeter data from the multi-mission Geophysical Data Records (GDRs) are interpolated to a common reference orbit facilitating direct time series analysis of the geo-referenced SSH. The data are in netCDF format. Each file consists of one cycle of data, which is approximately 10 days long. Cycle 001 coincides with cycle 001 of TOPEX/Poseidon (September 25-October 3, 1992).本数据集收录了由 TOPEX/Poseidon、Jason-1 以及 OSTM/Jason-2（视时间范围为定）提供的沿轨地理参照海面高度异常（SSHA）数据，这些数据已被融合至单一的均值参考轨道。数据中已应用所有偏差和交叉校准，以确保不同卫星间 SSHA 的一致性，从而形成单一气候数据记录。来自多任务地球物理数据记录（GDRs）的测高仪数据被插值至共同的参考轨道，以促进对地理参照 SSH 的直接时间序列分析。数据以 netCDF 格式存储。每个文件包含一个数据周期，大约持续 10 天。周期 001 与 TOPEX/Poseidon 的周期 001 相对应（1992 年 9 月 25 日至 10 月 3 日）。