caa a22 4500 465811191 CHVBK 20180323112116.0 cr unu---uuuuu 170327e19901001xx s 000 0 eng 10.1007/BF02124907 doi (NATIONALLICENCE)springer-10.1007/BF02124907 Chen Chen-Tung College of Marine Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan, Republic of China aut Rates of calcium carbonate dissolution and organic carbon decomposition in the North Pacific ocean [Elektronische Daten] [Chen-Tung Chen] Recent carbonate data collected in the North Pacific were combined with the data in the literature in order to understand more clearly the carbonate chemistry in the North Pacific. Our analyses show that inorganic CaCO3 dissolution contributes about 26% of the total inorganic CO2 increase of deep water, after leaving the Southern Ocean. The calcium and alkalinity data indicate a CaCO3 dissolution rate of 0.060±0.010 and 0.053±0.005 µ mol kg−1 yr−1 respectively, for waters deeper than 2,000 m in reference to the Weddell Sea Deep Water. The organic carbon decomposition rate is 0.107±0.012 µ mol kg−1 yr−1 while the oxygen consumption rate is 0.13±0.002 µ mol kg−1 yr−1. These results which are based on the direct comparison of two water masses agree well with other estimates which are based on methods such as the one-dimensional-diffusion-advection model. Comparison of data along the two sections at 165°E and 150°W shows no significant difference in the ratio of the CaCO3 dissolution rate and the organic carbon decomposition rate. The eastern section, however, has a higher TCO2 input than the western section because of the older age of the deep water along the eastern section. the Oceanographical Society of Japan, 1990 Journal of the Oceanographical Society of Japan Kluwer Academic Publishers 46/5(1990-10-01), 201-210 0029-8131 46:5<201 1990 46 10872 https://doi.org/10.1007/BF02124907 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02124907 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Chen Chen-Tung College of Marine Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan, Republic of China aut NATIONALLICENCE 773 0- Journal of the Oceanographical Society of Japan Kluwer Academic Publishers 46/5(1990-10-01), 201-210 0029-8131 46:5<201 1990 46 10872 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer