Integrated Multi-Mission Ocean Altimeter Data for Climate Research complete time series Version 2

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 onto 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 in an array based on 3-dimensions (rev#, index, cycle) that permits direct access of individual locations at specific times (i.e., temporal and spatial sub-sampling). The data start at September 1992 and is presently updated to January 2013. The newest data are appended to the file quarterly.

本数据集汇聚了来自TOPEX/Poseidon、Jason-1及OSTM/Jason-2（根据时间周期而定）的沿轨地理参考海面高度异常（SSHA）数据，并合并至单一的平均参考轨道。所有偏差和交叉校准均已应用于数据之中，以确保不同卫星间的SSHA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，便于对地理参考的SSHA进行直接的时间序列分析。数据格式为基于三维数组（rev#、索引、周期）的netCDF格式，允许直接访问特定时间点的单个位置（即时间和空间子采样）。数据起始时间为1992年9月，目前更新至2013年1月。最新数据每季度追加至文件中。