Longitudinally different variations of lower tropospheric carbon dioxide concentrations over the North Pacific Ocean
Longitudinally different variations of lower tropospheric carbon dioxide concentrations over the North Pacific Ocean
复制标题
北太平洋对流层低层二氧化碳浓度的纵向差异变化
DOI：
10.3402/tellusb.v44i3.15438
复制
发表时间：
1992
期刊：
影响因子：
2.3
通讯作者：
Masayuki Tanaka
中科院分区：
文献类型：
--
作者：
T. Nakazawa;S. Murayama;K. Miyashita;S. Aoki;Masayuki Tanaka
为了阐明北太平洋大气CO2浓度的时空变化，从1984年到1986年，用4艘集装箱船连续3年系统地采集了空气样品。季节CO2循环在高纬度地区增强最明显，向南逐渐减弱，并有位相延迟。在北纬30°以北，季节变化幅度西部大于东部，南部则相反。与西部地区相比，东部地区季节性CO2循环的南移明显减小。西部地区各年平均CO2浓度在中纬度地区较高，向南和向北呈下降趋势，东部地区在中高纬度地区变化不大，但随着纬度的降低略有增加。结果表明，在50°~25°N范围内，西部地区的年平均CO2浓度始终高于东部地区，而低纬地区的年平均CO2浓度分布则相反。东西部CO2浓度的差异受季节和纬度的影响。DOI：10.1034/j.1600-0889.1992.t01-2-00001.x
To elucidate temporal and spatial variations of the atmospheric CO 2 concentration over the North Pacific Ocean, air samples have been collected systematically using 4 container ships for 3 years from 1984 to 1986. The seasonal CO 2 cycle was most enhanced at high latitudes and decreased gradually going southward with a phase delay. North of 30°N, the seasonal amplitude was larger in the western part than in the eastern part; however, to the south the situation was reversed. The southward phase shift of the seasonal CO 2 cycle was much reduced in the eastern part, as compared with that in the western part. In the western part, the annual mean values of the CO 2 concentration in respective years were high at middle latitudes and decreased going southward and northward; those in the eastern part were rather constant at middle and high latitudes, but increased slightly with decreasing latitude. As a result, yearly mean CO 2 concentrations between 50° and 25°N were always higher in the western part than in the eastern part and those at lower latitudes showed the opposite distribution. Differences of the CO 2 concentration between the eastern and western parts depended on season and latitude. DOI: 10.1034/j.1600-0889.1992.t01-2-00001.x
影响因子：
4.4
作者：
THONING, KW;TANS, PP;KOMHYR, WD
通讯作者：
KOMHYR, WD