Show All BATHTUB model
BATHTUB is a primary model used in lake and reservoir assessment and lake nutrient TMDL development. The MPCA has long made use of this model in Clean Water Partnership projects, helping to set NPDES phosphorus effluent limitations, and as a diagnostic tool in lake assessments. It has become the model of choice for many lake eutrophication (nutrient) TMDLs as well.
Read Modeling lake data for a brief description of MPCA lake modeling applications.
Training event: September 2011
Based on increased interest in the use of this model by agency staff, the MPCA collaborated with
The training was recorded for in-house use and shared here for educational purposes:
{nocache}
The training was intended to provide background on the model that would be useful for both project managers who may oversee projects where BATHTUB is applied, as well as MPCA technical staff who may do modeling for TMDLs or other projects.
Background
BATHTUB is an empirical lake eutrophication model developed in the 1980s for the U.S. Army Corps of Engineers (USACE), based on large data sets from reservoirs and other waterbodies from across the country. USACE has provided updates to the model; Dr. Soballe provides training, maintains the model, and distributes current versions online:
- Download the model: Water Quality Models and Tools
- Technical details: FLUX, PROFILE and BATHTUB: Simplified Procedures for Eutrophication Assessment and Prediction
BATHTUB is an empirical lake eutrophication model that was developed by Dr. William Walker, Jr. for the US Army Corps of Engineers (USACE)in the 1980s. It is based on large data sets from USACE reservoirs and other waterbodies from across the country. It has undergone several updates since it was first developed. The USACE and more specifically Dr. David Soballe at the USACE is responsible for these updates and maintaining current versions of the model on the USACE web site. Dr. Soballe also provides training on the use and application of the model.
BATHTUB is a primary model used in lake and reservoir assessment and lake nutrient TMDL development. The MPCA has long made use of this model in Clean Water Partnership projects, helping to set NPDES phosphorus effluent limitations, and as a diagnostic tool in lake assessments. It has become the model of choice for many lake eutrophication (nutrient) TMDLs as well. A brief description of MPCA lake modeling applications is provided at: http://www.pca.state.mn.us/index.php/water/water-types-and-programs/surface-water/lakes/lake-water-quality/modeling-lake-data.html . A link to the USACE web site is provided here as well: http://el.erdc.usace.army.mil/products.cfm?Topic=model&Type=watqual
Since there was increased interest in the use of this model by MPCA staff we felt it was timely to provide some training to staff on the application of BATHTUB for basic lake and watershed assessment purposes and for lake eutrophication TMDLs. The training was intended to provide background on the model that would be useful for both project managers who may oversee projects where BATHTUB is applied, as well as MPCA technical staff who may do modeling for TMDLs or other projects. The training was developed in collaboration with Dr. Soballe and he presented the training to staff on September 20 and 21 in the St. Paulo office. An up-to-date version of BATHTUB was provided to staff and all training PowerPoint’s were stored on the MPCA x-drive for future reference at: X:\Agency_Files\Water\Condition Monitoring\Lakes\Models\Bathtub.
