Lakes And Reservoirs Models

These models and simulations have been tagged “Lakes And Reservoirs”.

Related tagsEnvironmentEutrophication

Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Eutrophication Lakes And Reservoirs Environment
Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Clone of Vollenweider model
James Dare
This is a simple mass balance model simulating the lake's nutrient dynamics in Lake Tai over time and it's removal of phosphorous saturation. Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout
Lakes And Reservoirs Eutrophication Environment
This is a simple mass balance model simulating the lake's nutrient dynamics in Lake Tai over time and it's removal of phosphorous saturation.

Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout
Lake Taihu Model
Mia Sakamoto
Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment. This version uses nitrogen and adds phytoplankton growth b
Environment Eutrophication Lakes And Reservoirs
Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.

This version uses nitrogen and adds phytoplankton growth based on a Michaelis-Menten equation
Clone of Vollenweider model with primary production
Marta Carrega
Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Environment Lakes And Reservoirs Eutrophication
Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Clone of Vollenweider model
Rodrigo Sávio Teixeira de Moura
Simple mass balance model for lakes based on the Vollenweider equation: dMw/dt = Min - sMw + pMs - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment. This version considers mercury, and adds diagenesis, using
Lakes And Reservoirs Environment Pollution
Simple mass balance model for lakes based on the Vollenweider equation:

dMw/dt = Min - sMw + pMs - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment.

This version considers mercury, and adds diagenesis, using an extra state variable (mercury in the sediment), and incorporates desorption processes that release mercury trapped in the sediment back to the water column.

The temporal dynamics of the model simulate the typical development of pollution in time.

1. Low loading, low Hg concentration in lake
2. High loading, increasing Hg concentration in lake
3. Desorption rate is low, Hg in sediment increases
4. Measures implemented for source control, loading reduces
5. Hg in lake gradually decreases, but below a certain point, desorption increases, and lake Hg concentration does not improve
6. Recovery only occurs when the secondary load in the sediment is strongly reduced.
Clone of Mercury pollution model with diagenesis
celine moradi
This is a simple mass balance model simulating the lake's nutrient dynamics in Lake Tai over time and it's removal of phosphorous saturation. Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout
Environment Eutrophication Lakes And Reservoirs
This is a simple mass balance model simulating the lake's nutrient dynamics in Lake Tai over time and it's removal of phosphorous saturation.

Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout
Lake Taihu Model
Mia Sakamoto
3
This is a simple mass balance model simulating the lake's nutrient dynamics in Lake Tai over time and it's removal of phosphorous saturation. Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout
Eutrophication Environment Lakes And Reservoirs
This is a simple mass balance model simulating the lake's nutrient dynamics in Lake Tai over time and it's removal of phosphorous saturation.

Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout
Clone of Lake Taihu Model
Mia Sakamoto
Simple mass balance model for aquaculture area, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment. Direct loading replaces input concentration Th
Environment Lakes And Reservoirs Eutrophication Aquaculture
Simple mass balance model for aquaculture area, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment.

Direct loading replaces input concentration

The key uncertainty in these models is s, the loss of phosphorus to the sediment. Calculation of s, and the retention coefficient R used in the Dillon & Rigler model, was extensively analysed on the basis of existing literature, and the final equation used was from Canfield & Bachmann, 1981, for natural lakes.
QUASSA model
Joao G. Ferreira
5
Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment. This version adds diagenesis, using an extra state variable (ph
Environment Lakes And Reservoirs Eutrophication
Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment.

This version adds diagenesis, using an extra state variable (phosphorus in the sediment) and incorporates desorption processes that release phosphorus trapped in the sediment back to the water column.

The temporal dynamics of the model simulate the typical development of pollution in time.

1. Low loading, low P concentration in lake
2. High loading, increasing P concentration in lake
3. Desorption rate is low, P in sediment increases
4. Measures implemented for source control, loading reduces
5. P in lake gradually decreases, but below a certain point, desorption increases, and lake P concentration does not improve
6. Recovery only occurs when the secondary load in the sediment is strongly reduced.
Clone of Vollenweider model with diagenesis
rui zhang
Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment. This version adds diagenesis, using an extra state variable (ph
Environment Lakes And Reservoirs Eutrophication
Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment.

This version adds diagenesis, using an extra state variable (phosphorus in the sediment) and incorporates desorption processes that release phosphorus trapped in the sediment back to the water column.

The temporal dynamics of the model simulate the typical development of pollution in time.

1. Low loading, low P concentration in lake
2. High loading, increasing P concentration in lake
3. Desorption rate is low, P in sediment increases
4. Measures implemented for source control, loading reduces
5. P in lake gradually decreases, but below a certain point, desorption increases, and lake P concentration does not improve
6. Recovery only occurs when the secondary load in the sediment is strongly reduced.
Clone of Vollenweider model with diagenesis
M Ibarria
7 months ago
Simple mass balance model for aquaculture area, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment. Direct loading replaces input concentration Th
Environment Lakes And Reservoirs Eutrophication Aquaculture
Simple mass balance model for aquaculture area, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs for eutrophication assessment.

Direct loading replaces input concentration

The key uncertainty in these models is s, the loss of phosphorus to the sediment. Calculation of s, and the retention coefficient R used in the Dillon & Rigler model, was extensively analysed on the basis of existing literature, and the final equation used was from Canfield & Bachmann, 1981, for natural lakes.
Clone of QUASSA model
Alhambra
7 months ago
Simple mass balance model for lakes, based on the Vollenweider equation: dMw/dt = Min - sMw - Mout The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Environment Eutrophication Lakes And Reservoirs
Simple mass balance model for lakes, based on the Vollenweider equation:

dMw/dt = Min - sMw - Mout

The model was first used in the 1960s to determine the phosphorus concentration in lakes and reservoirs, for eutrophication assessment.
Clone of Vollenweider model
Alhambra
3 months ago