Climate signals from GRACE/GRACE-FO and next-generation gravity missions (CLISGY)

在IP6的第一阶段，一项主要任务是将关于优化GRACE/GRACE-FO处理的结果预测到下一代重力场任务(NGGM)的概念上。在IP6的第二阶段，将扩展这些模拟，重点放在长期过程，特别是气候信号，并辅之以基于重力的气候模型验证的详细研究。这将包括使用GRACE/GRACE-FO重力场解决方案，针对各种评估措施(季节信号、趋势、极端事件等)对CMIP6耦合气候模式运行进行评估，并根据模式集合的共识确定预期的未来气候信号。此外，将在先进的NGGM概念假设下进行长期的端到端卫星飞行任务模拟实验，以调查预期信号的可探测性，如趋势、趋势变化或周期信号的幅度和相位变化，以评估验证甚至改进气候模型的可行性。

In the first phase of IP6, a major task was the projection of the findings regarding optimized GRACE/GRACE-FO processing on concepts of next-generation gravity field missions (NGGMs). In the second phase of IP6, these simulations will be extended with thefocus on long-term processes and specifically climate signals, complemented by a detail study on gravity-based validation of climate models. This will include the use of GRACE/GRACE-FO gravity field solutions for the evaluation of CMIP6 coupled climate model runs with respect to various evaluation measures (seasonal signal, trends, extreme events, etc.), and the identification of expected future climate signals from the consensus of the model ensemble. Further, long-term end-to-end satellite mission simulation experiments under the assumption of advanced NGGM concepts will be used to investigate the detectability of the expected signals such as trends, changes in trends, or amplitude and phase changes of periodic signals will be performed, in order to assess the feasibility to validate or even improve climate models.