ATLAS/ICESat-2 L3B Daily and Monthly Gridded Polar Sea Surface Height Anomaly, Version 1

This data set contains daily and monthly gridded polar sea surface height (SSH) anomalies, derived from the along-track ATLAS/ICESat-2 L3A Sea Ice Height product (ATL10, V4). The ATL10 product identifies leads in sea ice and establishes a reference sea surface used to estimate SSH in 10 km along-track segments. ATL21 aggregates the ATL10 along-track SSH estimates and computes daily and monthly gridded SSH anomaly in NSIDC Polar Stereographic Northern and Southern Hemisphere 25 km grids.

本数据集包含由沿轨ATLAS/ICESat-2的L3A海冰高度产品（ATL10，V4版本）衍生得到的逐日、逐月网格化极地海面高度（Sea Surface Height, SSH）距平。ATL10产品可识别海冰中的冰间水道，并确立参考海面，以在10千米沿轨分段中开展海面高度估算。ATL21对ATL10的沿轨海面高度估算结果进行聚合，并基于美国国家冰雪数据中心（National Snow and Ice Data Center, NSIDC）极地立体投影南北半球25千米网格，计算得到逐日、逐月的海面高度距平。