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构建一个包括切萨皮克湾神秘硫循环的模型需要对关键过程和参数做出明智的选择

Rui Jin¹, Marie-Aude Pradal¹, Kalev Hantsoo¹

¹Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218, United States.

|December 15, 2023

概括

切萨皮克湾的一个新的生物地球化学模型整合了,碳,氧和硫循环. 这种增强的模型改进了对物种和氧气水平的模拟,为海湾生态系统提供了更全面的了解.

科学领域:

环境科学环境科学
生态系统建模生态系统建模
生物地质化学生物地质化学

背景情况:

切萨皮克湾的现有模型,如ECB和BioRedoxCNPS,在模拟关键的生物地球化学过程方面存在局限性.
欧洲央行模拟,碳和氧,而BioRedoxCNPS包括神秘的硫循环.
模型之间的过程表示和参数化的差异需要精细的方法.

研究的目的:

通过合并ECB和BioRedoxCNPS,为切萨皮克湾开发一个新的,综合的生物地球化学模型.
识别和分析两个源模型之间的过程和参数的关键差异.
创建一个更现实的,更全面的模型来模拟海湾的生态系统动态.

主要方法:

合并ECB和BioRedoxCNPS模型,重点关注溶解有机物,埋葬,硫循环和光衰减的差异.
对诸如溶解有机物吸收率,化率和石化比率等参数进行敏感性研究.
对切萨皮克湾的观测数据进行新模型的校准和验证.

主要成果:

新模型成功地纳入了硫循环,而ECB模型中没有这种循环.
综合模型在预测氧气水平方面表现出与ECB模型相似的技能.
与两个原始模型相比,新模型显示了物种的改进模拟精度.

结论:

将现有模型与仔细选择的过程和参数合并,可以创建一个优越的生物地球化学模型.
新模型提供了对切萨皮克湾的生物地质化学,包括硫循环的更全面的表示.
这种增强模型是理解和管理切萨皮克湾生态系统的宝贵工具.

关键词:

氧气过低是因为缺氧.建模预测模型的预测.在化过程中,化光学吸收吸收的方法颗粒沉没的粒子沉没在SNP_BUR_DOM中使用.石化测量是一种体质测量.

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