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Improvement of the One-dimensional Vertical Advection-diffusion Model in Seawater

Improvement of the One-dimensional Vertical Advection-diffusion Model in Seawater
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摘要 The classical 1-D vertical advection-diffusion model was improved in this work. The main advantages of the improved model over the previous one are: 1) The applicable condition of the 1-D model is made clear in the improved model, in that it is substantively applicable only to a vertical domain on which two end-member water masses are mixing. 2) The substitution of parameter f(z) in the equation of the classical 1-D model with end-member fraction f 1z makes the model more precisely and easily solved. 3) All the terms in the improved model equation have specific physical meanings, which makes the model easily understood. Practical application of the improved model to predict the vertical profiles of dissolved oxygen and micronutrients in abyssal ocean water of the North Pacific proved that the improvement of the 1-D advection-diffusion model is successful and practicable. The classical 1-D vertical advection-diffusion model was improved in this work. The main advantages of the improved model over the previous one are: 1) The applicable condition of the 1-D model is made clear in the improved model, in that it is substantively applicable only to a vertical domain on which two end-member water masses are mixing. 2) The substitution of parameter f(z) in the equation of the classical 1-D model with end-member fraction f 1z makes the model more precisely and easily solved. 3) All the terms in the improved model equation have specific physical meanings, which makes the model easily understood. Practical application of the improved model to predict the vertical profiles of dissolved oxygen and micronutrients in abyssal ocean water of the North Pacific proved that the improvement of the 1-D advection-diffusion model is successful and practicable.
出处 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2003年第1期34-39,共6页 中国海洋湖沼学报(英文版)
基金 ProjectNo.4 0 0 760 2 2supportedbyNSFC .
关键词 垂直剖面 一维水平对流-扩散模型 海水 溶解氧 养分 北太平洋 D advection-diffusion model, vertical profile, dissolved oxygen, nutrient, North Pacific
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