Empirical reservoir water quality modelling using Walker's 'BATHTUB' Model 1 (second-order available-phosphorus sedimentation) from Walker (1985) <https://hdl.handle.net/11681/13884> and Walker (1996) <https://hdl.handle.net/11681/4353> as the default retention model. The Vollenweider (1976) hydraulic- residence form and the equivalent formulation of Larsen and Mercier (1976) are available as alternatives. Predicts in-lake total phosphorus, total nitrogen, chlorophyll-a, and Secchi depth from tributary nutrient and hydraulic loading inputs, and computes Carlson (1977) <doi:10.4319/lo.1977.22.2.0361> Trophic State Indices. Optional Oklahoma-specific chlorophyll and Secchi regression coefficients are provided, calibrated from publicly available state lake monitoring data. Supports single-segment and multi-segment reservoir configurations and load-reduction scenario analysis. Designed to complement watershed loading models such as the Soil and Water Assessment Tool ('SWAT'; <https://swat.tamu.edu>) and the U.S. EPA Hydrologic and Water Quality System ('HAWQS'; <https://hawqs.tamu.edu>) in a two-model nutrient management workflow.
| Version: | 0.1.10 |
| Depends: | R (≥ 4.1.0) |
| Imports: | utils |
| Suggests: | ggplot2 (≥ 3.4.0), dplyr (≥ 1.1.0), tidyr (≥ 1.3.0), stringr (≥ 1.5.0), knitr, rmarkdown, testthat (≥ 3.0.0) |
| Published: | 2026-05-29 |
| DOI: | 10.32614/CRAN.package.okBATHTUB (may not be active yet) |
| Author: | Jordon Henderson [aut, cre, cph] |
| Maintainer: | Jordon Henderson <jordon.henderson at owrb.ok.gov> |
| BugReports: | https://github.com/0011235813/Oklahoma-BATHTUB/issues |
| License: | MIT + file LICENSE |
| URL: | https://0011235813.github.io/Oklahoma-BATHTUB/, https://github.com/0011235813/Oklahoma-BATHTUB |
| NeedsCompilation: | no |
| Materials: | README, NEWS |
| CRAN checks: | okBATHTUB results |
| Reference manual: | okBATHTUB.html , okBATHTUB.pdf |
| Vignettes: |
Getting Started with okBATHTUB (source, R code) Linking OK-HAWQS/SWAT Outputs to okBATHTUB (source, R code) Oklahoma Reservoir Workflow (source, R code) |
| Package source: | okBATHTUB_0.1.10.tar.gz |
| Windows binaries: | r-devel: not available, r-release: not available, r-oldrel: not available |
| macOS binaries: | r-release (arm64): okBATHTUB_0.1.10.tgz, r-oldrel (arm64): not available, r-release (x86_64): okBATHTUB_0.1.10.tgz, r-oldrel (x86_64): okBATHTUB_0.1.10.tgz |
Please use the canonical form https://CRAN.R-project.org/package=okBATHTUB to link to this page.