Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL071881 |
Eutrophication-induced acidification of coastal waters in the northern Gulf of Mexico: Insights into origin and processes from a coupled physical-biogeochemical model | |
Laurent, Arnaud1; Fennel, Katja1; Cai, Wei-Jun2; Huang, Wei-Jen2,3; Barbero, Leticia4,5; Wanninkhof, Rik4 | |
2017-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA; Taiwan |
英文摘要 | Nutrient inputs from the Mississippi/Atchafalaya River system into the northern Gulf of Mexico promote high phytoplankton production and lead to high respiration rates. Respiration coupled with water column stratification results in seasonal summer hypoxia in bottom waters on the shelf. In addition to consuming oxygen, respiration produces carbon dioxide (CO2), thus lowering the pH and acidifying bottom waters. Here we present a high-resolution biogeochemical model simulating this eutrophication-driven acidification and investigate the dominant underlying processes. The model shows the recurring development of an extended area of acidified bottom waters in summer on the northern Gulf of Mexico shelf that coincides with hypoxic waters. Not reported before, acidified waters are confined to a thin bottom boundary layer where the production of CO2 by benthic metabolic processes is dominant. Despite a reduced saturation state, acidified waters remain supersaturated with respect to aragonite. |
英文关键词 | acidification eutrophication hypoxia biogeochemical model northern Gulf of Mexico Mississippi |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395652600041 |
WOS关键词 | LOUISIANA CONTINENTAL-SHELF ; MISSISSIPPI RIVER ; OCEAN ACIDIFICATION ; PHYTOPLANKTON GROWTH ; OXYGEN-CONSUMPTION ; MARGIN SEDIMENTS ; DIAGENETIC MODEL ; SKILL ASSESSMENT ; ORGANIC-MATTER ; DYNAMIC-MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29177 |
专题 | 气候变化 |
作者单位 | 1.Dalhousie Univ, Dept Oceanog, Halifax, NS, Canada; 2.Univ Delaware, Sch Marine Sci & Policy, Newark, DE USA; 3.Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung, Taiwan; 4.NOAA AOML, Miami, FL USA; 5.Univ Miami, CIMAS, Miami, FL USA |
推荐引用方式 GB/T 7714 | Laurent, Arnaud,Fennel, Katja,Cai, Wei-Jun,et al. Eutrophication-induced acidification of coastal waters in the northern Gulf of Mexico: Insights into origin and processes from a coupled physical-biogeochemical model[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(2). |
APA | Laurent, Arnaud,Fennel, Katja,Cai, Wei-Jun,Huang, Wei-Jen,Barbero, Leticia,&Wanninkhof, Rik.(2017).Eutrophication-induced acidification of coastal waters in the northern Gulf of Mexico: Insights into origin and processes from a coupled physical-biogeochemical model.GEOPHYSICAL RESEARCH LETTERS,44(2). |
MLA | Laurent, Arnaud,et al."Eutrophication-induced acidification of coastal waters in the northern Gulf of Mexico: Insights into origin and processes from a coupled physical-biogeochemical model".GEOPHYSICAL RESEARCH LETTERS 44.2(2017). |
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