ANALYSIS OF HORIZONTAL REGIME OF DENITRIFICATION IN EASTERN TROPICAL NORTH PACIFIC
ANALYSIS OF HORIZONTAL REGIME OF DENITRIFICATION IN EASTERN TROPICAL NORTH PACIFIC
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DOI：
10.4319/lo.1976.21.3.0379
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发表时间：
1976-01-01
影响因子：
4.5
通讯作者：
RICHARDS, FA
中科院分区：
文献类型：
--
作者：
CODISPOTI, LA;RICHARDS, FA
一种使用等熵分析来估计热带北太平洋东部缺氧水域反硝化去除 NO3 的方法与基于垂直分布的技术相当吻合。动态计算可以估计这些 NO3 缺陷离开研究区域的水平平流输送；这种运输占总量的很大一部分，表明水平过程很重要。水平输送与垂直损失和水平扩散损失的估计结合使用产生了.apprxeq的反硝化率。 2.次。 .apprxeq 以东的热带北太平洋东部部分为 1013 g N yr-1。 112.度。 W. 该值与基于对适当体积的缺氧水应用呼吸速率的估计以及基于垂直模型的估计非常一致。
A method using isentropic analysis to estimate NO3 removals by dentrification in the O2 deficient waters of the eastern tropical North Pacific agreed reasonably well with a technique based on vertical distributions. Dynamic computations permitted an estimate of the horizontal advective transport of these NO3 deficits out of the study region; such transport was a large fraction of the total, indicating that horizontal processes are important. The horizontal transports used in combination with estimates for vertical losses and horizontal diffusive losses yielded a denitrification rate of .apprxeq. 2 .times. 1013 g N yr-1 for the portion of the eastern tropical North Pacific east of .apprxeq. 112.degree. W. This value was in good agreement with estimates based on the application of respiration rates to the appropriate volumes of O2 deficient water and with an estimate based on a vertical model.