追踪大气中的二氧化碳的变量北大西洋沉
Andrew J Watson1, Ute Schuster, Dorothee C E Bakker
1School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK. a.watson@uea.ac.uk
概括
北大西洋的二氧化碳 (CO2) 吸收量每年有显著的变化. 2005年,有仪器的船只精确测量了二氧化碳的流量,从而可以更好地监测海洋的碳汇.
科学领域:
- 海洋学 海洋学 海洋学
- 气候科学 气候科学
- 生物地质化学生物地质化学
背景情况:
- 海洋是大气中的二氧化碳 (CO2) 的主要沉积点.
- 通过稀疏的历史观测,海洋盆地对海洋二氧化碳吸收率的准确跟踪一直受到限制.
- 了解海洋二氧化碳吸收的变化对于气候变化建模至关重要.
研究的目的:
- 在跨年时间尺度上调查北大西洋二氧化碳 (CO2) 吸收的变化.
- 为了高精度量化2005年每年进入北大西洋的二氧化碳流量.
- 评估使用仪器商船监测海洋二氧化碳沉积点的潜力.
主要方法:
- 利用观测来证明北大西洋二氧化碳吸收的实质性变化.
- 采用了来自仪器商船协调网络的测量.
- 定义了2005年每年进入北大西洋的二氧化碳流量,精度约为10%.
主要成果:
- 北大西洋二氧化碳 (CO2) 吸收的实质性变异在几年的时间尺度上被观察到.
- 2005年每年进入北大西洋的二氧化碳流量以大约10%的精度确定.
- 该研究强调了船舶测量的有效性,以量化海洋二氧化碳吸收.
结论:
- 北大西洋在吸收大气中的二氧化碳 (CO2) 能力方面表现出显著的跨年变化.
- 一个协调的仪器商船网络提供了一个可行的方法来准确监测海洋二氧化碳沉积点.
- 这种方法有望加强对海洋碳汇变化的跟踪,在经营良好的海洋盆地.
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