2019-20 Honours project - Sea level fingerprints associated with future land ice melting

We utilize the sea level fingerprint module - ISSM’s Solid Earth and Sea level Adjustment Workbench (ISSM-SESAW), developed by NASA/Jet Propulsion Laboratory (JPL), to provide high-resolution sea level fingerprints in response to future polar ice sheet mass changes in the 21st century under the Representative Concentration Pathway (RCP) 4.5 and 8.5 scenarios. We also explore the sensitivity of sea level fingerprints to different 1-D elastic Earth models and the spatial resolution at which mass change of polar ice sheets is resolved. Furthermore, sea level contributions by individual polar ice sheet basins in the 21st century are also estimated for some coastal cities of interest (e.g., Perth) in this research.

本研究采用美国国家航空航天局（NASA）喷气推进实验室（JPL）开发的冰盖系统模型（ISSM）的固体地球与海平面调整工作台（ISSM-SESAW）这一海平面指纹（sea level fingerprint）模块，针对典型浓度路径（RCP）4.5与8.5情景下21世纪未来极地冰盖质量变化，生成相应的高分辨率海平面指纹。同时，本研究探讨了海平面指纹对不同一维弹性地球模型的敏感性，以及用于解析极地冰盖质量变化的空间分辨率对海平面指纹的影响。此外，本研究还针对若干重点关注的沿海城市，如珀斯（Perth），估算了21世纪各单个极地冰盖流域的海平面贡献量。