Development and Testing of a Dissolved Oxygen Model for a Hypereutrophic Lake
Development and Testing of a Dissolved Oxygen Model for a Hypereutrophic Lake
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超富营养化湖泊溶解氧模型的开发和测试
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
M. Auer
中科院分区：
文献类型：
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作者：
Rakesh K. Gelda;M. Auer
摘要奥农达加湖是一个过度富营养化的城市系统，其溶解氧（DO）的两层质量平衡模型已被开发和测试。该模型考虑了复氧、藻类光合作用和呼吸作用、含碳生化需氧量（CBOD）、含氮生化需氧量（NBOD）、沉积物需氧量（SOD）和还原态物种的水柱氧化等过程。大多数模型的输入，和许多动力学系数，开发通过一个程序的现场监测和现场和实验室实验。分别使用1989年和1990年收集的数据对模型进行了校准和验证。严重的溶解氧耗尽观察到的hypolimonion（低混合层; LML）的Onondaga湖在夏季分层。SOD和水体氧化还原物种从沉积物中扩散的共同负责的夏季消耗>70%，CBOD，NBOD和藻类呼吸的平衡。溶解氧消耗发生在...
ABSTRACT A mechanistic, two-layer mass balance model for dissolved oxygen (DO) in Onondaga Lake, a hypereutrophic, urban system, has been developed and tested. The model accommodates the processes of reaeration, algal photosynthesis and respiration, carbonaceous biochemical oxygen demand (CBOD), nitrogenous biochemical oxygen demand (NBOD), sediment oxygen demand (SOD) and water column oxidation of reduced species. Most model inputs, and many of the kinetic coefficients, were developed through a program of field monitoring and field and laboratory experimentation. The model was calibrated and verified using data collected in 1989 and 1990, respectively. Severe dissolved oxygen depletion is observed in the hypolimnion (lower mixed layer; LML) of Onondaga Lake during summer stratification. SOD and water column oxidation of reduced species diffusing from the sediment are together responsible for >70% of the summer depletion; CBOD, NBOD and algal respiration account for the balance. DO depletion occurs in the...