start:hype_model_description:hype_np_riv_lake
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start:hype_model_description:hype_np_riv_lake [2020/02/28 11:18] cpers |
start:hype_model_description:hype_np_riv_lake [2020/02/28 11:20] cpers [Links to file reference] |
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| For shallow waters in lakes macrophytes can grow and take up inorganic nutrients (IN and SP). The nutrients are lost to the model. Macrophyte uptake are controlled by a temperature function (//tmpfcn//) and a concentration function (//TPfcn//) for total phosphorus. The temperature function is composed of two parts; one exponential and one dependent on the water temperature (//Tw//) above the average temperature of the last twenty days (//T20//). The concentration function is the same half-saturation function as for production and mineralisation [[http://www.smhi.net/hype/wiki/doku.php?id=start:hype_model_description:hype_np_riv_lake#primary_production_and_mineralization|above]]. | For shallow waters in lakes macrophytes can grow and take up inorganic nutrients (IN and SP). The nutrients are lost to the model. Macrophyte uptake are controlled by a temperature function (//tmpfcn//) and a concentration function (//TPfcn//) for total phosphorus. The temperature function is composed of two parts; one exponential and one dependent on the water temperature (//Tw//) above the average temperature of the last twenty days (//T20//). The concentration function is the same half-saturation function as for production and mineralisation [[http://www.smhi.net/hype/wiki/doku.php?id=start:hype_model_description:hype_np_riv_lake#primary_production_and_mineralization|above]]. | ||
| - | tmpfcn = (Tw/20)^0.3 * (Tw-T20)/5, Tw>0 and tempfcn>0 | + | <m> tmpfcn = (Tw/20)^0.3 * (Tw-T20)/5, Tw>0 and tempfcn>0 </m> |
| The lake area (//fracarea//) that is shallower than a production depth (//proddep//, general parameter //muptdep//) is assumed to be active with macrophyte uptake. The lake is for this purpose assumed to be decreasing linearly with depth until twice the average depth of the lake. | The lake area (//fracarea//) that is shallower than a production depth (//proddep//, general parameter //muptdep//) is assumed to be active with macrophyte uptake. The lake is for this purpose assumed to be decreasing linearly with depth until twice the average depth of the lake. | ||
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| + | ==== Links to relevant procedures in the code ==== | ||
| + | |||
| + | ^Modules (file) ^Procedures ^ | ||
| + | |[[http://hype.sourceforge.net/doxy-html/namespacenpc__surfacewater__processes.html|npc_surfacewater_processes (np_sw_proc.f90)]]|np_processes_in_lake | | ||
| + | |:::|macrophyte_uptaked| | ||
start/hype_model_description/hype_np_riv_lake.txt ยท Last modified: 2024/01/25 11:37 (external edit)
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