Global Aragonite Saturation State (CMIP6)
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This layer represents the CMIP6 future projects for the aragonite saturation state. Aragonite is one form of calcium carbonate that is critical for many shell-building species, such as corals, oysters, and many larvae. If the saturation state falls below 3.0, it becomes difficult for shell building processes. This is a multidimensional dataset showing multiple times and depths for a single Shared Socioeconomic Pathway (SSP), used to model and understand how different socioeconomic factors might influence future climate change. The saturation state was calculated by dividing two model outputs: Carbonate Ion Concentration / Mole Concentration of Carbonate Ion in Equilibrium with Pure Aragonite in sea water. SSP Scenario: SSP3-7.0 Depths: 30 standard depths from 0 to -6,750m Time Extent: 1985 (historical average), 2035, 2045, 2055, 2065, 2075, 2085 *Central year of 30-year period (2020-2049, 2030-2059, 2040-2069, 2050-2079, 2060-2089, 2070-2099) Unit: Omega Source: NOAA Geophysical Fluid Dynamics Lab via the Earth System Grid Federation This layer can be used to better understand potential impacts of future climate change to the ocean environment.
本图层展示的是第六次耦合模式比较计划(CMIP6)未来情景下的文石饱和状态数据集。文石(aragonite)是碳酸钙的一种存在形式,对诸多造壳物种(如珊瑚、牡蛎及多种浮游幼体)的生存至关重要。当饱和状态低于3.0时,生物的造壳过程将难以顺利进行。本数据集为多维数据集,针对单一共享社会经济路径(Shared Socioeconomic Pathway,SSP)涵盖多时间与多深度维度,用于模拟并解析不同社会经济因素对未来气候变化的影响机制。文石饱和状态的计算方式为两项模型输出的比值:海水中碳酸根离子浓度与海水中与纯文石达到溶解平衡的碳酸根离子摩尔浓度的比值。本次采用的SSP情景为SSP3-7.0;深度维度包含从0米至-6750米的30个标准深度;时间范围涵盖1985年(历史平均值)、2035年、2045年、2055年、2065年、2075年、2085年,以及各30年周期的中心年份(2020-2049、2030-2059、2040-2069、2050-2079、2060-2089、2070-2099);数据单位为Omega;数据来源为美国国家海洋和大气管理局地球物理流体动力学实验室(NOAA Geophysical Fluid Dynamics Lab)通过地球系统网格联盟(Earth System Grid Federation)提供。本数据集可用于更深入地理解未来气候变化对海洋环境的潜在影响。



