{"title":"团岛近岸时间序列站点初夏期间的海面二氧化碳含量","authors":"","doi":"10.1016/j.marenvres.2024.106699","DOIUrl":null,"url":null,"abstract":"<div><p>To investigate air-sea CO<sub>2</sub> flux at the Qingdao nearshore site and its temporal variations, a high-resolution continuous observation of surface carbon dioxide partial pressure (<em>p</em>CO<sub>2</sub>) was carried out at Zhongyuan Pier near Tuandao from May 25 to July 8, 2019. It was observed that during this period, surface <em>p</em>CO<sub>2</sub> varied between ∼490 and ∼690 μatm, mainly associated with sea surface temperature. Surface <em>p</em>CO<sub>2</sub> also displayed substantial diurnal variations, with an average amplitude of 64 ± 21 μatm, largely dominated by biological activities. During the observational period, this site acted as a source of atmospheric CO<sub>2</sub>, releasing 361 mmol CO<sub>2</sub> m<sup>−2</sup>. The notable diurnal variations in air-sea CO<sub>2</sub> flux, such as the observed average amplitude of 10.9 mmol m<sup>−2</sup> d<sup>−1</sup> in this study, pose a challenge for accurately estimating the air-sea CO<sub>2</sub> flux in coastal regions without high-resolution observations.</p></div>","PeriodicalId":18204,"journal":{"name":"Marine environmental research","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sea surface carbon dioxide during early summer at the Tuandao nearshore time series site\",\"authors\":\"\",\"doi\":\"10.1016/j.marenvres.2024.106699\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>To investigate air-sea CO<sub>2</sub> flux at the Qingdao nearshore site and its temporal variations, a high-resolution continuous observation of surface carbon dioxide partial pressure (<em>p</em>CO<sub>2</sub>) was carried out at Zhongyuan Pier near Tuandao from May 25 to July 8, 2019. It was observed that during this period, surface <em>p</em>CO<sub>2</sub> varied between ∼490 and ∼690 μatm, mainly associated with sea surface temperature. Surface <em>p</em>CO<sub>2</sub> also displayed substantial diurnal variations, with an average amplitude of 64 ± 21 μatm, largely dominated by biological activities. During the observational period, this site acted as a source of atmospheric CO<sub>2</sub>, releasing 361 mmol CO<sub>2</sub> m<sup>−2</sup>. The notable diurnal variations in air-sea CO<sub>2</sub> flux, such as the observed average amplitude of 10.9 mmol m<sup>−2</sup> d<sup>−1</sup> in this study, pose a challenge for accurately estimating the air-sea CO<sub>2</sub> flux in coastal regions without high-resolution observations.</p></div>\",\"PeriodicalId\":18204,\"journal\":{\"name\":\"Marine environmental research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2024-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Marine environmental research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S014111362400360X\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine environmental research","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S014111362400360X","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
为研究青岛近岸海域的海气二氧化碳通量及其时空变化,2019年5月25日至7月8日,在团岛附近的中原码头开展了海面二氧化碳分压(pCO2)高分辨率连续观测。观测结果表明,在此期间,海面 pCO2 在 490 ~ 690 μatm 之间变化,主要与海面温度有关。地表 pCO2 也有很大的昼夜变化,平均振幅为 64 ± 21 μatm,主要受生物活动的影响。在观测期间,该站点是大气二氧化碳的来源,释放了 361 mmol CO2 m-2。海气 CO2 通量的昼夜变化显著,如本研究观测到的平均振幅为 10.9 mmol m-2 d-1,这对没有高分辨率观测资料的沿岸地区准确估算海气 CO2 通量提出了挑战。
Sea surface carbon dioxide during early summer at the Tuandao nearshore time series site
To investigate air-sea CO2 flux at the Qingdao nearshore site and its temporal variations, a high-resolution continuous observation of surface carbon dioxide partial pressure (pCO2) was carried out at Zhongyuan Pier near Tuandao from May 25 to July 8, 2019. It was observed that during this period, surface pCO2 varied between ∼490 and ∼690 μatm, mainly associated with sea surface temperature. Surface pCO2 also displayed substantial diurnal variations, with an average amplitude of 64 ± 21 μatm, largely dominated by biological activities. During the observational period, this site acted as a source of atmospheric CO2, releasing 361 mmol CO2 m−2. The notable diurnal variations in air-sea CO2 flux, such as the observed average amplitude of 10.9 mmol m−2 d−1 in this study, pose a challenge for accurately estimating the air-sea CO2 flux in coastal regions without high-resolution observations.
期刊介绍:
Marine Environmental Research publishes original research papers on chemical, physical, and biological interactions in the oceans and coastal waters. The journal serves as a forum for new information on biology, chemistry, and toxicology and syntheses that advance understanding of marine environmental processes.
Submission of multidisciplinary studies is encouraged. Studies that utilize experimental approaches to clarify the roles of anthropogenic and natural causes of changes in marine ecosystems are especially welcome, as are those studies that represent new developments of a theoretical or conceptual aspect of marine science. All papers published in this journal are reviewed by qualified peers prior to acceptance and publication. Examples of topics considered to be appropriate for the journal include, but are not limited to, the following:
– The extent, persistence, and consequences of change and the recovery from such change in natural marine systems
– The biochemical, physiological, and ecological consequences of contaminants to marine organisms and ecosystems
– The biogeochemistry of naturally occurring and anthropogenic substances
– Models that describe and predict the above processes
– Monitoring studies, to the extent that their results provide new information on functional processes
– Methodological papers describing improved quantitative techniques for the marine sciences.