Merged Hadley-OI sea surface temperature and sea ice concentration data set

The merged Hadley-OI sea surface temperature (SST) and sea ice concentration (SIC) data sets were specifically developed as surface forcing data sets for AMIP style uncoupled simulations of the Community Atmosphere Model (CAM). The Hadley Centre's SST/SIC version 1.1 (HADISST1), which is derived gridded, bias-adjusted in situ observations, were merged with the NOAA-Optimal Interpolation (version 2; OI.v2) analyses. The HADISST1 spanned 1870 onward but the OI.v2, which started in November 1981, better resolved features such as the Gulf Stream and Kuroshio Current which are important components of the climate system. Since the two data sets used different development methods, anomalies from a base period were used to create a more homogeneous record. Also, additional adjustments were made to the SIC data set.

本数据集由 Hadley-OI 海面温度（SST）与海冰浓度（SIC）合并而成，专为 Community Atmosphere Model (CAM) 的 AMIP 风格非耦合模拟提供地表强迫数据。Hadley Centre 的 SST/SIC 版本 1.1（HADISST1），基于网格化的、经过偏差校正的现场观测数据，与 NOAA-最优插值分析（版本 2；OI.v2）相结合。HADISST1 数据覆盖自 1870 年起，而 OI.v2 数据自 1981 年 11 月开始，能够更好地解析如墨西哥湾流和黑潮等气候系统的重要特征。鉴于两个数据集采用了不同的开发方法，通过基于基准期的异常值创建了一个更加均质化的记录。此外，还对海冰浓度数据集进行了额外的调整。