气候变化领域集成服务门户(CCPortal): Potential impact of DOM accumulation on fCO2 and carbonate ion computations in ocean acidification experiments

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.829379
	Potential impact of DOM accumulation on fCO2 and carbonate ion computations in ocean acidification experiments
	Koeve; Wolfgang; Oschlies; Andreas
发布日期	2014-02-11
数据集类型	dataset
英文简介	Culture and mesocosm experiments are often carried out under high initial nutrient concentrations, yielding high biomass concentrations that in turn often lead to a substantial build-up of DOM. In such experiments, DOM can reach concentrations much higher than typically observed in the open ocean. To the extent that DOM includes organic acids and bases, it will contribute to the alkalinity of the seawater contained in the experimental device. Our analysis suggests that whenever substantial amounts of DOM are produced during the experiment, standard computer programmes used to compute CO2 fugacity can underestimate true fCO2 significantly when the computation is based on AT and CT. Unless the effect of DOM-alkalinity can be accounted for, this might lead to significant errors in the interpretation of the system under consideration with respect to the experimentally applied CO2 perturbation. Errors in the inferred fCO2 can misguide the development of parameterisations used in simulations with global carbon cycle models in future CO2-scenarios. Over determination of the CO2-system in experimental ocean acidification studies is proposed to safeguard against possibly large errors in estimated fCO2.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215515
推荐引用方式 GB/T 7714	Koeve,Wolfgang,Oschlies,et al. Potential impact of DOM accumulation on fCO2 and carbonate ion computations in ocean acidification experiments.2014-02-11.https://doi.org/10.1594/PANGAEA.829379.