Observations of planetary heating since the 1980s from multiple independent datasets
Observations of planetary heating since the 1980s from multiple independent datasets
复制标题
通过多个独立数据集对 20 世纪 80 年代以来行星加热的观测
DOI：
10.1088/2515-7620/abbb39
复制
发表时间：
2020
影响因子：
2.9
通讯作者：
Allison L
中科院分区：
文献类型：
--
作者：
Allison L
全球平均地表温度的时间序列被广泛用于衡量地球能量不平衡导致的气候变化率。然而，基于气候模式模拟的研究表明，在年度至十年的时间尺度上，全球海洋热含量是一个更可靠的指标。在这里，我们研究了这方面的观测证据，将过去2030年的多个数据集汇总在一起。这一观测分析有力地支持了基于模型的发现，即全球海洋热含量和海平面比地表温度更可靠，可用于监测这些时间尺度上的地球能量积累。0 - 100 m和100 - 250 m层的全球海洋温度异常是负相关的（r =-0.36），主要是由热带太平洋的影响解释的，更深的海洋层的积分揭示了更清晰的加热信号。多个独立数据集之间的惊人一致性代表了行星持续加热的明确证据。
Time series of global mean surface temperature are widely used to measure the rate of climate change that results from Earth’s energy imbalance. However, studies based on climate model simulations suggest that on annual-to-decadal timescales global ocean heat content is a more reliable indicator. Here we examine the observational evidence for this, drawing together multiple datasets that span the past ∼30 years. This observational analysis strongly supports the model-based finding that global ocean heat content and sea level are more reliable than surface temperature for monitoring Earth’s energy accumulation on these timescales. Global ocean temperature anomalies in the 0–100 m and 100–250 m layers are negatively correlated (r = −0.36), primarily explained by the influence of the Tropical Pacific, and a clearer heating signal is revealed by integrating over deeper ocean layers. The striking agreement between multiple independent datasets represents unequivocal evidence of ongoing planetary heating.