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start:hype_model_description:aquifier [2015/01/16 16:39]
lstromback [Return flow from aquifer]
start:hype_model_description:aquifier [2020/03/11 09:09] (current)
cpers [Deep percolation delay and aquifer recharge]
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 There are two model options for processes deep below ground; regional groundwater flow and aquifers. The regional groundwater flow model simulates groundwater flow between subbasins, but no explicit storage of deep groundwater. The aquifer model simulates aquifer storage and delay before regional groundwater reaches the destination. There are two model options for processes deep below ground; regional groundwater flow and aquifers. The regional groundwater flow model simulates groundwater flow between subbasins, but no explicit storage of deep groundwater. The aquifer model simulates aquifer storage and delay before regional groundwater reaches the destination.
 +
 ===== Regional groundwater flow ===== ===== Regional groundwater flow =====
  
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 ==== Regional groundwater to outlet lake ==== ==== Regional groundwater to outlet lake ====
  
-With an input variable in GeoData.txt,​ an outlet lake may be flagged to receive inflow from the regional groundwater. The coefficient (grwtolake) specifies the portion of the produced regional groundwater flow which is led to the subbasins outlet lake. +With an input variable in GeoData.txt,​ an outlet lake may be flagged to receive inflow from the regional groundwater. The coefficient (//grwtolake//) specifies the portion of the produced regional groundwater flow which is led to the subbasins outlet lake. 
  
  
 +==== Links to file reference ====
 +
 +^Section ^Symbol ^Parameter/​Data ^File ^
 +|Soil regional groundwater flow creation| |//​grwtolake,​ grwdown//​|[[start:​hype_file_reference:​geodata.txt|GeoData.txt]]|
 +|:::​|//​rcgrw//​ |//​rcgrw//​|[[start:​hype_file_reference:​par.txt|par.txt]]|
 +|:::​|//​wp(k)//​|//​wcwp,​ wcwp1, wcwp2, wcwp3//​|:::​|
 +|:::​|//​fc(k)//​|//​wcfc,​ wcfc1, wcfc2, wcfc3//​|:::​|
  
 ==== Links to relevant procedures in the code ==== ==== Links to relevant procedures in the code ====
  
 ^ Modules (file) ^ Procedures ^ Sections ^ ^ Modules (file) ^ Procedures ^ Sections ^
-| [[http://​hype.sourceforge.net/​doxy-html/​classregional__groundwater__module.html|regional_groundwater_module (regional_groundwater.f90)]]| calculate_regional_groundwater_flow | soil regional groundwater flow creation |+| [[http://​hype.sourceforge.net/​doxy-html/​namespaceregional__groundwater__module.html|regional_groundwater_module (regional_groundwater.f90)]]| calculate_regional_groundwater_flow | soil regional groundwater flow creation |
 | ::: | calculate_soillayer_groundwaterflow_removal | soil regional groundwater flow creation | | ::: | calculate_soillayer_groundwaterflow_removal | soil regional groundwater flow creation |
 | ::: | add_regional_groundwater_flow_to_soil | soil addition of regional groundwater flow | | ::: | add_regional_groundwater_flow_to_soil | soil addition of regional groundwater flow |
 | ::: | add_regional_groundwater_flow_to_olake | regional groundwater to outlet lake | | ::: | add_regional_groundwater_flow_to_olake | regional groundwater to outlet lake |
  
- +===== Aquifers ​=====
-===== Aquifiers ​=====+
  
 ==== Deep percolation ==== ==== Deep percolation ====
  
-Deep percolation is determined by a recession coefficient (//rc_grw//). The recession coefficient is set based on the recession parameter (//​rcgrwst//​) which is soil type dependent, but if it is not set the general parameter (//rcgrw//) is used instead. The recession coefficient can also be regionally adjusted by the correction parameter (//​aqpercorr//​).+Deep percolation is determined by a recession coefficient (<m>rc_grw</m>). The recession coefficient is set based on the recession parameter (//​rcgrwst//​) which is soil type dependent, but if it is not set the general parameter (//rcgrw//) is used instead. The recession coefficient can also be regionally adjusted by the correction parameter (//​aqpercorr//​).
  
 <​m>​rc_{grw} = rcgrw(or rcgrwst)*(1+aqpercorr) </m> <​m>​rc_{grw} = rcgrw(or rcgrwst)*(1+aqpercorr) </m>
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 ==== Deep percolation delay and aquifer recharge ==== ==== Deep percolation delay and aquifer recharge ====
  
-Deep percolation from soil and rivers in all recharge subbasins of an aquifer is added together. This total deep percolation (//qperc//) is delayed before it recharges the aquifer (//qrech//).+Deep percolation from soil and rivers in all recharge subbasins of an aquifer is added together. This total deep percolation (<​m>​q_{perc}<​/m>) is delayed before it recharges the aquifer (<​m>​q_{rech}<​/m>).
  
-The delay parameter ​(//delay//, in days) is specific ​for each aquifer. It can be adjusted by the regional ​parameter //​aqdelcor//​.+<m> q_{rech}(t) = (1-coeff) * q_{perc}(t) + coeff * q_{rech}(t-1) </​m>​ 
 + 
 +<m> coeff = e ^ {-1/​delayts} </​m>​ 
 + 
 +The delay property ​(//delayts//, in timesteps per day) is specified ​for each aquifer ​(//delay// in days). It can be adjusted by the parameter region dependent model parameter //​aqdelcor//​.
  
 ==== Return flow from aquifer ==== ==== Return flow from aquifer ====
  
-Outflow from the aquifer ​depend ​on the water in the aquifer (//vol//) and a rate. The rate is determined by a parameter ​(//​retrate//​) and a regional ​adjustement ​parameter (//​aqretcor//​).+Outflow from the aquifer ​depends ​on the water in the aquifer (//vol//) and a rate. The rate is determined by a aquifer property ​(//​retrate//​) and a regional ​adjustment ​parameter (//​aqretcor//​, parameter region dependent).
  
  
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 ==== Nutrient processes related to aquifers ==== ==== Nutrient processes related to aquifers ====
  
-The organic nitrogen, particulate phosphorus, and organic carbon in water percolating from soil and river stay in the soil/river, while temperature,​ inorganic nitrogen and SRP follow the water to the aquifer. Inorganic nitrogen is subjected to denitrification in the aquifer (see Chapter ​Denitrification).+The organic nitrogen, particulate phosphorus, and organic carbon in water percolating from soil and river stay in the soil/river, while temperature,​ inorganic nitrogen and SRP follow the water to the aquifer. Inorganic nitrogen is subjected to denitrification in the aquifer (see Chapter ​[[start:​hype_model_description:​hype_np_soil#​denitrification|Nitrogen and phosphorus in land routines - Denitrification]]). 
 + 
 +==== Links to file reference ==== 
 + 
 +^Section ^Symbol ^Parameter/​Data ^File ^ 
 +|Aquifers| |//aquid, subid, parreg//​|[[start:​hype_file_reference:​aquiferdata.txt|AquiferData.txt]]| 
 +|:::​|:::​|//​basedepth,​ inidepth, porosity, area//​|:::​| 
 +|Deep percolation|<​m>​rc_{grw}</​m>​ calculated from|//​rcgrw,​ rcgrwst, aqpercorr//​|[[start:​hype_file_reference:​par.txt|par.txt]]| 
 +|:::​|//​wp//​|//​wcwp,​ wcwp1, wcwp2, wcwp3//​|:::​| 
 +|:::​|//​fc//​|//​wcfc,​ wcfc1, wcfc2, wcfc3//​|:::​| 
 +|Deep percolation delay and aquifer recharge| |//​recharge//​|[[start:​hype_file_reference:​aquiferdata.txt|AquiferData.txt]]| 
 +|:::​|//​delay//​ |//​delay//​|:::​| 
 +|:::​|//​aqdelcorr//​ |//​aqdelcorr//​|[[start:​hype_file_reference:​par.txt|par.txt]]| 
 +|Return flow from aquifer|//​retrate,​ retfrac// |//retrate, retfrac//​|[[start:​hype_file_reference:​aquiferdata.txt|AquiferData.txt]]| 
 +|:::​|//​aqretcorr//​ |//​aqretcorr//​|[[start:​hype_file_reference:​par.txt|par.txt]]| 
 +|Nutrient processes related to aquifers| |//​topdepth,​ temp, conc_IN, conc_SP//​|[[start:​hype_file_reference:​aquiferdata.txt|AquiferData.txt]]| 
 +|:::​|:::​|//​denitaq,​ hsatINs, wcep, wcfc, wcwp//​|[[start:​hype_file_reference:​par.txt|par.txt]]| 
  
 ==== Links to relevant procedures in the code ==== ==== Links to relevant procedures in the code ====
  
 ^ Modules (file) ^ Procedures ^ Sections ^ ^ Modules (file) ^ Procedures ^ Sections ^
-| [[http://​hype.sourceforge.net/​doxy-html/​classregional__groundwater__module.html|regional_groundwater_module (regional_groundwater.f90)]]| calculate_regional_groundwater_flow | deep percolation |+| [[http://​hype.sourceforge.net/​doxy-html/​namespaceregional__groundwater__module.html|regional_groundwater_module (regional_groundwater.f90)]]| calculate_aquifer |   | 
 +| ::: | calculate_regional_groundwater_flow | deep percolation |
 | ::: | calculate_soillayer_groundwaterflow_removal | ::: | | ::: | calculate_soillayer_groundwaterflow_removal | ::: |
 | ::: | calculate_river_groundwaterflow_removal | ::: | | ::: | calculate_river_groundwaterflow_removal | ::: |
-| ::: | calculate_aquifer_percolation | deep percolation delay and aquifer recharge | +| ::: | calculate_aquifer_percolation ​| ::: | 
-| ::: | calculate_percolation_delay ​| ::: |+| ::: | calculate_percolation_delay ​| deep percolation delay and aquifer recharge | 
 +| ::: | calculate_delayed_water ​| ::: |
 | ::: | calculate_aquifer_outflow | return flow from aquifer | | ::: | calculate_aquifer_outflow | return flow from aquifer |
 | ::: | add_aquifer_flow_to_river | ::: | | ::: | add_aquifer_flow_to_river | ::: |
start/hype_model_description/aquifier.1421422797.txt.gz · Last modified: 2015/01/16 16:39 by lstromback