Salinity from Space Unlocks Satellite-Based Assessment of Ocean Acidification

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• 作者：Peter E. Land ; Jamie D. Shutler ; Helen S. Findlay ; Fanny Girard-Ardhuin ; Roberto Sabia ; Nicolas Reul ; Jean-Francois Piolle ; Bertrand Chapron ; Yves Quilfen ; Joseph Salisbury ; Douglas Vandemark ; Richard Bellerby ; Punyasloke Bhadury
• 刊名：Environmental Science & Technology
• 出版年：2015
• 出版时间：February 17, 2015
• 年：2015
• 卷：49
• 期：4
• 页码：1987-1994
• 全文大小：289K
• ISSN：1520-5851

文摘

Approximately a quarter of the carbon dioxide (CO₂) that we emit into the atmosphere is absorbed by the ocean. This oceanic uptake of CO₂ leads to a change in marine carbonate chemistry resulting in a decrease of seawater pH and carbonate ion concentration, a process commonly called 鈥淥cean Acidification鈥? Salinity data are key for assessing the marine carbonate system, and new space-based salinity measurements will enable the development of novel space-based ocean acidification assessment. Recent studies have highlighted the need to develop new in situ technology for monitoring ocean acidification, but the potential capabilities of space-based measurements remain largely untapped. Routine measurements from space can provide quasi-synoptic, reproducible data for investigating processes on global scales; they may also be the most efficient way to monitor the ocean surface. As the carbon cycle is dominantly controlled by the balance between the biological and solubility carbon pumps, innovative methods to exploit existing satellite sea surface temperature and ocean color, and new satellite sea surface salinity measurements, are needed and will enable frequent assessment of ocean acidification parameters over large spatial scales.