南极冰架年崩解数据集（2005-2019）

崩解是南极冰架物质平衡的核心过程之一，也是精细监测冰架变化的重要物理量。作者运用2005-2019年每年8月初的多源遥感数据，提取了2005年8月至2019年8月14年间南极冰架发生的所有面积在1 km²以上的年崩解事件，计算了它们的面积、厚度、崩解量与崩解周期等，得到南极冰架年崩解数据集（2005-2019）。该数据集包括14个年度的南极冰架崩解分布数据，包括冰架崩解年份区间、崩解区长度、面积、平均厚度、崩解量、崩解周期和崩解类型等信息。该数据集以.shp格式存储，由112个数据文件组成，数据总量为10.2 MB（压缩为1个文件，3.23 MB）。

Ice shelf calving is one of the core processes governing the mass balance of Antarctic ice shelves, and also a critical physical variable for finely monitoring ice shelf changes. The authors utilized multi-source remote sensing data collected in early August each year from 2005 to 2019, extracted all annual calving events of Antarctic ice shelves with an area ≥1 km² that occurred between August 2005 and August 2019 (spanning 14 years), and calculated their area, thickness, calving volume, calving cycle and other related parameters, thus establishing the Annual Antarctic Ice Shelf Calving Dataset (2005–2019). This dataset contains spatial distribution data of Antarctic ice shelf calving events for 14 consecutive years, including information such as the time interval of calving events, length of calving zones, area, average thickness, calving volume, calving cycle and calving type. This dataset is stored in .shp format, consisting of 112 individual data files, with a total uncompressed size of 10.2 MB (compressed to a single file with a size of 3.23 MB).

搜集汇总

背景与挑战

背景概述

该数据集基于2005年至2019年每年8月初的多源遥感数据，提取了南极冰架面积超过1平方公里的所有年崩解事件，并计算了面积、厚度、崩解量和崩解周期等参数，形成14个年度的崩解数据。数据集以SHP矢量格式存储，包含112个文件，总数据量为10.2 MB，适用于南极冰架变化监测和遥感研究。