Extents of Antarctic sea ice - GIS data - 1973-1999

This dataset represents extents of Antarctic sea ice derived from passive microwave data. It includes: maximum and minimum sea ice extent based on 1989 - 99 data; maximum sea ice extent by month for the period October - March based on 1973 - 98 data; mean sea ice extent by month based on 1973 - 1998 data; and maximum sea ice extent averaged over the period 1987 - 1998.The data referenced by this metadata record has been sourced from another metadata record in this catalogue. For more information on the dataset see:Antarctic CRC and Australian Antarctic Division Climate Data Set - Northern extent of Antarctic sea ice [climate_sea_ice].

本数据集呈现了反演自被动微波数据（passive microwave data）的南极海冰范围。其包含：基于1989-1999年数据计算得到的海冰最大与最小范围；基于1973-1998年数据得到的10月至次年3月各月海冰最大范围；基于1973-1998年数据得到的各月平均海冰范围；以及1987-1998年时段平均的海冰最大范围。本元数据记录所引用的数据源自本数据目录中的另一项元数据记录。如需了解该数据集的更多详情，请参阅：南极CRC（Antarctic CRC）与澳大利亚南极局（Australian Antarctic Division）气候数据集——南极海冰北部范围 [climate_sea_ice]。