start:hype_model_description:hype_orgc
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start:hype_model_description:hype_orgc [2018/10/11 15:26] cpers [Primary production and mineralization] |
start:hype_model_description:hype_orgc [2018/10/12 14:02] cpers [Links to file reference] |
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| - | Primary production is a source of organic carbon in rivers and lakes, while mineralization is a sink. Primary production and mineralization is calculated the same way as for nitrogen, but with its own calibration parameter (//wprodc//). The potential carbon transformation (//minprodCpot//, kg / day) is proportional to the potential nitrogen transformation (//minprodNpot//, see also [[start:hype_model_description:hype_np_riv_lake#primary_production_and_mineralization|NP section]]) with a transformation rate that depends on the carbon-nitrogen ratio (//NCratio// = 5.7). The calculated mineralization of organic carbon is limited to a maximum of 50% of the available OC pool. If phosphorus is not modelled a long-term average total phosphorus concentration as a lake region dependent parameter (//tpmean//) is used. If set, the long-term average concentration is reduced by the general parameter //limsedPP// before using it in the concentration function thus reducing the production/mineralisation of OC. | + | Primary production is a source of organic carbon in rivers and lakes, while mineralization is a sink. Primary production and mineralization is calculated the same way as for nitrogen, but with its own calibration parameter (//wprodc//). The equations are repeated below. The production/mineralization depend on temperature and total phosphorus and lake area (//area//). The potential carbon transformation (//minprodCpot//, kg / day) is proportional to the potential nitrogen transformation (//minprodNpot//, see also [[start:hype_model_description:hype_np_riv_lake#primary_production_and_mineralization|NP section]]) with a transformation rate that depends on the carbon-nitrogen ratio (//NCratio// = 5.7). The calculated mineralization of organic carbon is limited to a maximum of 50% of the available OC pool. If phosphorus is not modelled a long-term average total phosphorus concentration as a lake region dependent parameter (//tpmean//) is used. If set, the long-term average concentration is reduced by the general parameter //limsedPP// before using it in the concentration function thus reducing the production/mineralisation of OC. |
| <m> tmpfcn1 = watertemp / 20. </m> | <m> tmpfcn1 = watertemp / 20. </m> | ||
| Line 162: | Line 162: | ||
| |Sources of organic material| |//resc//|[[start:hype_file_reference:cropdata.txt|CropData.txt]]| | |Sources of organic material| |//resc//|[[start:hype_file_reference:cropdata.txt|CropData.txt]]| | ||
| |:::| |//litterdays//|[[start:hype_file_reference:par.txt|par.txt]]| | |:::| |//litterdays//|[[start:hype_file_reference:par.txt|par.txt]]| | ||
| - | |Soil processes| |//humusc1//, //humusc2//, //humusc3//, //fastc1//, //fastc2//, //fastc3//|[[start:hype_file_reference:par.txt|par.txt]]| | + | |Soil processes| |//humusc1, humusc2, humusc3, fastc1, fastc2, fastc3, koflim//|[[start:hype_file_reference:par.txt|par.txt]]| |
| |:::|<m>theta_low</m> |//ocsoilslp// or 0.08|:::| | |:::|<m>theta_low</m> |//ocsoilslp// or 0.08|:::| | ||
| |:::|//satact//|//ocsoilsat// or 0.6|:::| | |:::|//satact//|//ocsoilsat// or 0.6|:::| | ||
| |:::|//minc//, //klh//, //klo//, //kof//, //kho//|//minc//, //klh//, //klo//, //kof//, //kho//|:::| | |:::|//minc//, //klh//, //klo//, //kof//, //kho//|//minc//, //klh//, //klo//, //kof//, //kho//|:::| | ||
| - | |:::| |//koflim//|:::| | ||
| |:::|//par//|//kcgwreg// or //koc//|:::| | |:::|//par//|//kcgwreg// or //koc//|:::| | ||
| |Riparian zone|//elev//|calculated from //mean_elev// and //dhslc_nn//|[[start:hype_file_reference:geodata.txt|GeoData.txt]]| | |Riparian zone|//elev//|calculated from //mean_elev// and //dhslc_nn//|[[start:hype_file_reference:geodata.txt|GeoData.txt]]| | ||
start/hype_model_description/hype_orgc.txt ยท Last modified: 2024/01/25 11:37 (external edit)
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