Consistency and Challenges in the Ocean Carbon Sink Estimate for the Global Carbon Budget
Consistency and Challenges in the Ocean Carbon Sink Estimate for the Global Carbon Budget
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DOI：
10.3389/fmars.2020.571720
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发表时间：
2020-10-27
影响因子：
3.7
通讯作者：
Seferian, Roland
中科院分区：
文献类型：
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作者：
Hauck, Judith;Zeising, Moritz;Seferian, Roland
根据2019年全球碳项目的评估，在2009-2018十年间，海洋平均占据了2.5+/-0.6PGC年(-1)或23+/-5%的人为二氧化碳排放总量。这一汇估计基于全球海洋生物地球化学模型(GOBM)的模拟结果，并与基于表层海洋PCO(2)(二氧化碳分压)观测的数据产品进行了比较，其中考虑了河流来源的二氧化碳的放出。在这里，我们通过比较模拟的表层海洋PCO(2)和观测值来评估GOBM模拟。基于这种比较，模拟结果非常适合于在年平均及其多年代际趋势(RMSE)的时间尺度上量化全球海洋碳汇
Based on the 2019 assessment of the Global Carbon Project, the ocean took up on average, 2.5 +/- 0.6 PgC yr(-1) or 23 +/- 5% of the total anthropogenic CO2 emissions over the decade 2009-2018. This sink estimate is based on simulation results from global ocean biogeochemicalmodels (GOBMs) and is compared to data-products based on observations of surface ocean pCO(2) (partial pressure of CO2) accounting for the outgassing of river-derived CO2. Here we evaluate the GOBM simulations by comparing the simulated surface ocean pCO(2) to observations. Based on this comparison, the simulations are well-suited for quantifying the global ocean carbon sink on the time-scale of the annual mean and its multi-decadal trend (RMSE