Lucas and Waliser Satellite ECT Corrected Daily, Pentad and Monthly Global OLR Datasets

This dataset contains daily, pentad and monthly OLR data in which the bias from varying satellite equatorial crossing times (ECTs) has been estimated and then removed. This was done by starting with the twice daily 2.5 degree NCEP/NOAA OLR archive for 1974 through 1999. The ECT biases caused by afternoon satellite orbital drift AND the abrupt transition from a morning satellite to an afternoon satellite were estimated separately and then these estimates were removed.

本数据集包含逐日、逐候（pentad）及逐月的向外长波辐射（Outgoing Longwave Radiation, OLR）数据，已完成对卫星赤道过境时间（Equatorial Crossing Times, ECTs）变化所引发偏差的估算与移除。该数据集以1974年至1999年间每日两次、空间分辨率为2.5度的NCEP/NOAA OLR存档数据为基础构建。研究人员分别估算了由卫星午后轨道漂移引发的ECT偏差，以及从晨间运行卫星到午后运行卫星的突变切换所带来的ECT偏差，随后将两类偏差均予以移除。