| 东中国海碳循环时空变化特征:三维物理-生物地球化学数值模型研究 |
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| 引用本文： | 季轩梁,刘桂梅,高姗,王辉,张苗茵.东中国海碳循环时空变化特征:三维物理-生物地球化学数值模型研究[J].海洋学报(英文版),2017,36(3):60-71. |
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| 作者姓名： | 季轩梁 刘桂梅 高姗 王辉 张苗茵 |
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| 作者单位： | 国家海洋环境预报中心, 北京, 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京, 100081, 中国,国家海洋环境预报中心, 北京, 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京, 100081, 中国,国家海洋环境预报中心, 北京, 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京, 100081, 中国,国家海洋环境预报中心, 北京, 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京, 100081, 中国,国家海洋环境预报中心, 北京, 100081, 中国;国家海洋局海洋灾害预报技术研究重点实验室, 北京, 100081, 中国 |
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| 基金项目： | The National Key Research and Development Program of China under contract No. 2016YFC1401605; the Strategic Priority Research Program of the Chinese Academy of Sciences under contract No. XDA 1102010403; the National Natural Science Foundation of China under contract Nos 41222038, 41206023 and 41076011; the Public Science and Technology Research Funds projects of Ocean of China under contract No. 201205018; the National Key Research and Development Program of China under contract No. 2016YFC1401605; the Guangdong Provincial Key Laboratory of Fishery Ecology and Environment under contract No. LFE-2015-3. |
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| 摘 要： | In the east of China's seas, there is a wide range of the continental shelf. The nutrient cycle and the carbon cycle in the east of China's seas exhibit a strong variability on seasonal to decadal time scales. On the basis of a regional ocean modeling system(ROMS), a three dimensional physical-biogeochemical model including the carbon cycle with the resolution(1/12)°×(1/12)° is established to investigate the physical variations, ecosystem responses and carbon cycle consequences in the east of China's seas. The ROMS-Nutrient Phytoplankton Zooplankton Detritus(NPZD) model is driven by daily air-sea fluxes(wind stress, long wave radiation, short wave radiation, sensible heat and latent heat, freshwater fluxes) that derived from the National Centers for Environmental Prediction(NCEP) reanalysis2 from 1982 to 2005. The coupled model is capable of reproducing the observed seasonal variation characteristics over the same period in the East China Sea. The integrated air-sea CO_2 flux over the entire east of China's seas reveals a strong seasonal cycle, functioning as a source of CO_2 to the atmosphere from June to October, while serving as a sink of CO_2 to the atmosphere in the other months. The 24 a mean value of airsea CO_2 flux over the entire east of China's seas is about 1.06 mol/(m~2·a), which is equivalent to a regional total of3.22 Mt/a, indicating that in the east of China's seas there is a sink of CO_2 to the atmosphere. The partial pressure of carbon dioxide in sea water in the east of China's seas has an increasing rate of 1.15 μatm/a(1μtm/a=0.101 325Pa), but p H in sea water has an opposite tendency, which decreases with a rate of 0.001 3 a~(–1) from 1982 to 2005.Biological activity is a dominant factor that controls the pCO_2 air in the east of China's seas, and followed by a temperature. The inverse relationship between the interannual variability of air-sea CO_2 flux averaged from the domain area and Ni?o3 SST Index indicates that the carbon cycle in the east of China's seas has a high correlation with El Ni?o-Southern Oscillation(ENSO).
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| 关 键 词： | 东中国海 物理-生物地球化学模型 海表面CO2分压 海气CO2通量 |
| 收稿时间： | 2015/12/7 0:00:00 |
| 修稿时间： | 2016/5/31 0:00:00 |
Temporal and spatial variability of the carbon cycle in the east of China's seas: a three-dimensional physical-biogeochemical modeling study |
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| JI Xuanliang,LIU Guimei,GAO Shan,WANG Hui and ZHANG Miaoyin.Temporal and spatial variability of the carbon cycle in the east of China's seas: a three-dimensional physical-biogeochemical modeling study[J].Acta Oceanologica Sinica,2017,36(3):60-71. |
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| Authors: | JI Xuanliang LIU Guimei GAO Shan WANG Hui and ZHANG Miaoyin |
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| Institution: | National Marine Environmental Forecasting Center, State Oceanic Administration, Beijing 100081, China;Key Laboratory of Research on Marine Hazards Forecasting, National Marine Environmental Forecasting Center, State Oceanic Administration, Beijing 100081, China |
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| Abstract: | In the east of China’s seas, there is a wide range of the continental shelf. The nutrient cycle and the carbon cycle in the east of China’s seas exhibit a strong variability on seasonal to decadal time scales. On the basis of a regional ocean modeling system (ROMS), a three dimensional physical-biogeochemical model including the carbon cycle with the resolution (1/12)°×(1/12)° is established to investigate the physical variations, ecosystem responses and carbon cycle consequences in the east of China’s seas. The ROMS-Nutrient Phytoplankton Zooplankton Detritus (NPZD) model is driven by daily air-sea fluxes (wind stress, long wave radiation, short wave radiation, sensible heat and latent heat, freshwater fluxes) that derived from the National Centers for Environmental Prediction (NCEP) reanalysis2 from 1982 to 2005. The coupled model is capable of reproducing the observed seasonal variation characteristics over the same period in the East China Sea. The integrated air-sea CO2 flux over the entire east of China’s seas reveals a strong seasonal cycle, functioning as a source of CO2 to the atmosphere from June to October, while serving as a sink of CO2 to the atmosphere in the other months. The 24 a mean value of airsea CO2 flux over the entire east of China’s seas is about 1.06 mol/(m2·a), which is equivalent to a regional total of 3.22 Mt/a, indicating that in the east of China’s seas there is a sink of CO2 to the atmosphere. The partial pressure of carbon dioxide in sea water in the east of China’s seas has an increasing rate of 1.15 μatm/a (1μtm/a=0.101 325 Pa), but pH in sea water has an opposite tendency, which decreases with a rate of 0.001 3 a–1 from 1982 to 2005. Biological activity is a dominant factor that controls the \({p_{C{O_2}air}}\) in the east of China’s seas, and followed by a temperature. The inverse relationship between the interannual variability of air-sea CO2 flux averaged from the domain area and Niño3 SST Index indicates that the carbon cycle in the east of China’s seas has a high correlation with El Niño-Southern Oscillation (ENSO). |
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| Keywords: | the east of China''s seas physical-biogeochemical model partial pressure of carbon dioxide in sea water air-sea CO2 flux |
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