Seasonal oxygen cycles and biological new production in surface waters of the subarctic Pacific Ocean
Seasonal oxygen cycles and biological new production in surface waters of the subarctic Pacific Ocean
复制标题
亚北极太平洋表层水域的季节性氧循环和生物新产物
DOI：
10.1029/jc092ic06p06535
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发表时间：
1987
影响因子：
--
通讯作者：
S. Emerson
中科院分区：
文献类型：
--
作者：
S. Emerson
亚北极太平洋海洋气象站P的氧、温度和盐度的季节性循环表明，在1969-1978年的10年夏季期间，表层沃茨中的氧有规律地过饱和度为4-6%。引起超饱和的主要过程是地表水加热以及初级生产力和群落呼吸的净效应。生物和加热信号分离使用的混合层模型和估计的空气-水气体交换率计算的经验相关性风速。夏季（5月中旬至8月中旬）的生物新生产量估计为100-300 mg C m−2 d−1。这些值在从夏季硝酸盐消耗计算的独立估计值的范围内。在1969-1978年期间，新的产量估计数的变化系数为3，1973-1975年的变化系数最小。这一趋势与P站浮游动物现存量的年际变化呈正相关。
Seasonal cycles of oxygen, temperature and salinity at Ocean Weather Station P in the subarctic Pacific Ocean reveal a regular 4–6% supersaturation of oxygen in the surface waters during the summers of the 10-year period 1969–1978. The main processes causing super-saturation are surface water heating and the net effect of primary production and community respiration. The biological and heating signals are separated using a mixed layer model and estimates for the air-water gas exchange rate calculated from empirical correlations to wind speed. Biological new production during the summer (mid-May to mid-August) is estimated to be 100–300 mg C m−2 d−1. These values are within the range of independent estimates calculated from the summer nitrate depletion. There is a factor of 3 variation in the new production estimates during the period 1969–1978 with a minimum in 1973–1975. This trend is positively correlated with the interannual variation in zooplankton standing stock at station P.