全球气候变化背景下极地冰盖关键参数遥感观测验证  

Remote sensing and observation validation of key parameters of the polar ice sheet in the context of global climate change

作　　者：乔刚 郝彤[1,2] 李洪伟 陆平[1,2] 安璐 陈秋杰 李荣兴[1,2] QIAO Gang;HAO Tong;LI Hongwei;LU Ping;AN Lu;CHEN Qiujie;LI Rongxing(College Surveying and Geo-informatics, Tongji University, Shanghai 200092, China;Center for Spatial Information Science and Sustainable Development Applications, Tongji University, Shanghai 200092, China)

机构地区：[1]同济大学测绘与地理信息学院,上海200092 [2]同济大学空间信息科学及可持续发展应用中心,上海200092

出　　处：《测绘学报》2022年第4期599-611,共13页Acta Geodaetica et Cartographica Sinica

基　　金：国家重点研发计划(2017YFA0603100);国家自然科学基金(41730102,41771471);国家海洋局极地考察办公室极地科学协同创新平台项目(CXPT2020017);中央高校基本科研业务费专项资金资助。

摘　　要：在当前全球气候变暖背景下,极地冰盖关键过程和重要参数研究对揭示极地冰盖对全球海平面变化的影响,提高海平面上升贡献的预测精度至关重要。极地科学考察的实地观测数据可以为遥感观测提供校准和验证,降低遥感反演的不确定性。本文基于同济大学全球变化研究团队近年来针对极地冰盖关键参数的测绘遥感与现场考察工作,重点阐述在极地科考观测验证和数据处理方面的研究,包括在南极冰盖的新型测高卫星的空-地协同验证、卫星角反射器布设、粒雪层内部温度观测与模型验证、多平台无人机海冰探测和雪冰环境调查,以及格陵兰冰盖质量变化评估等。最后,本文对未来的极地科考验证计划进行了展望。In the context of current global climate change,the study of key processes and parameters of polar regions is a key area of global change research,and is crucial to reveal the influence of polar ice sheets on global sea level change and improve the prediction accuracy of sea level rise contribution.Polar scientific expeditions can provide in situ data sets that could be used in calibration and validation of remote sensing observations and reduce the uncertainty of remote sensing inversions.Based on the remote sensing and fieldwork of the global change research team of Tongji University on key parameters of the polar ice sheet,this paper focuses on the team's research on the validation of polar scientific research observations and data processing,including the satellite-ground synoptic validation of altimetric satellites on the Antarctic ice sheet,the deployment of satellite angular reflectors,the observation and model validation of the internal temperature of the granular snow layer,the multi-platform UAV(unmanned aerial vehicle)sea ice detection and snow-ice environment investigation,and mass change assessment of the Greenland Ice Sheet,etc.Finally,an outlook on the future polar science research validation program is provided.

关 键 词：冰盖 关键过程 遥感 观测验证 中国南极科考 全球气候变化 

分 类 号：P23[天文地球—摄影测量与遥感]