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大洋海区海-气CO_2通量单参数遥感算法的适用性检验
引用本文:王郝京.大洋海区海-气CO_2通量单参数遥感算法的适用性检验[J].台湾海峡,2011,30(2):286-291.
作者姓名:王郝京
作者单位:厦门大学近海海洋环境科学国家重点实验室,福建,厦门,361005
摘    要:利用卫星遥感技术的优势,基于LDEO数据库的全球海表二氧化碳分压(PCO2)及海表温度(SST)等实测数据,初步建立东太平洋海区PCO2与SST的单参数经验算法,并采用相同区域的独立实测数据检验.结果表明,单参数算法在寡营养大洋海区具有良好的适用性,反演值与实测值之间的均方根误差(RMS)为0.51 Pa(1 Pa=9.869μatm),由此估算出2003年6月该海域CO2通量为-1.4 mmol/(m2.d),与实测估算的碳通量基本相符,能够很好地反映出海区CO2源汇特征.将该遥感算法运用到西大西洋海域(15°~25°N,60°~75°W),反演值与实测值之间均方根误差(RMS)为0.69 Pa.检验结果表明,在寡营养大洋海区,单参数遥感算法具有一定的适用性,在受相似因子调控的同纬度海区可以使用同一遥感算法.

关 键 词:海洋化学  大洋碳循环  卫星遥感  海-气界面CO2通量  海表CO2分压(PCO2)

Applicability inspection of remote-sensing single-parameter algorithm for air-sea CO2 flux in open ocean
WANG Hao-jing.Applicability inspection of remote-sensing single-parameter algorithm for air-sea CO2 flux in open ocean[J].Journal of Oceanography In Taiwan Strait,2011,30(2):286-291.
Authors:WANG Hao-jing
Institution:WANG Hao-jing(State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361005,China)
Abstract:Accurate estimation of the air-sea CO2 flux is the foundation of evaluating the role the ocean plays in the global carbon cycle.Previous research results have indicated that sea-surface PCO2 is dominated by the sea-surface temperature in the open ocean,and a single-parameter empirical algorithm performs well in evaluating sea-surface CO2 flux.On the basis of PCO2 and other related in situ parameters of the LDEO dataset,we used data recorded on four summer cruises(1996~2004) in the sea area near Hawaii(East ...
Keywords:marine chemistry  ocean carbon cycle  remote sensing  air-sea CO2 flux  sea-surface PCO2  
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