南北极250m分辨率三维遥感评估与更新产品（2002-2015）

参考多源遥感数据集（包括接地线数据、表面DEM和基岩DEM、多源遥感影像、冰流场数据等），利用自动和人工结合的评估方法对多期南极接地线产品进行了不一致性检测和评估，提供了各接地线产品的质量评估结果，并计算出各流域的接地线变化情况，并根据评估结果生成了较高质量的接地线时间序列产品。 对南极海岸线进行分类，利用自动和人工结合的评估方法对非冰架区域的多期海岸线产品的不一致性进行检测和评估，证明了南极非冰架区域的稳定性，提供了多期海岸线产品的质量评估结果，并根据评估结果生成了较高质量的海岸线时间序列产品。 依靠多源遥感数据集（Landsat影像、数字高程模型、格陵兰冰流速等），基于半自动方法绘制格陵兰边缘线，使用水体指数划分海洋掩膜，并进行人工检验校正，从而更新格陵兰边缘线数据集。

Based on multi-source remote sensing datasets (including grounding line data, surface DEM and bedrock DEM, multi-source remote sensing images, ice flow field data, etc.), a combined automatic and manual evaluation method was used to detect and evaluate inconsistencies in multi-temporal Antarctic grounding line products, providing quality assessment results for each grounding line product, calculating the grounding line changes in each basin, and generating high-quality grounding line time-series products based on the assessment results.
The Antarctic coastline was classified, a combined automatic and manual evaluation method was used to detect and evaluate inconsistencies in multi-temporal coastline products in non-ice shelf regions, the stability of the non-ice shelf regions in Antarctica was verified, quality assessment results for multi-temporal coastline products were provided, and high-quality coastline time-series products were generated based on the assessment results.
Based on multi-source remote sensing datasets (including Landsat images, digital elevation models, Greenland ice velocity data, etc.), the Greenland margin line was mapped using a semi-automatic method, the ocean mask was delineated using water body indices, and manual inspection and correction were performed, thereby updating the Greenland margin line dataset.