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soilhypfit  

Modelling of Soil Water Retention and Hydraulic Conductivity Data
View on CRAN: Click here


Download and install soilhypfit package within the R console
Install from CRAN:
install.packages("soilhypfit")

Install from Github:
library("remotes")
install_github("cran/soilhypfit")

Install by package version:
library("remotes")
install_version("soilhypfit", "0.1-7")



Attach the package and use:
library("soilhypfit")
Maintained by
Andreas Papritz
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2021-10-28
Latest Update: 2022-08-31
Description:
Provides functions for efficiently estimating properties of the Van Genuchten-Mualem model for soil hydraulic parameters from possibly sparse soil water retention and hydraulic conductivity data by multi-response parameter estimation methods (Stewart, W.E., Caracotsios, M. Soerensen, J.P. (1992) "Parameter estimation from multi-response data" <doi:10.1002/aic.690380502>). Parameter estimation is simplified by exploiting the fact that residual and saturated water contents and saturated conductivity are conditionally linear parameters (Bates, D. M.and Watts, D. G. (1988) "Nonlinear Regression Analysis and Its Applications" <doi:10.1002/9780470316757>). Estimated parameters are optionally constrained by the evaporation characteristic length (Lehmann, P., Bickel, S., Wei, Z. and Or, D. (2020) "Physical Constraints for Improved Soil Hydraulic Parameter Estimation by Pedotransfer Functions" <doi:10.1029/2019WR025963>) to ensure that the estimated parameters are physically valid. Common S3 methods and further utility functions allow to process, explore and visualise estimation results.
How to cite:
Andreas Papritz (2021). soilhypfit: Modelling of Soil Water Retention and Hydraulic Conductivity Data. R package version 0.1-7, https://cran.r-project.org/web/packages/soilhypfit
Previous versions and publish date:
0.1-3 (2021-10-28 20:40), 0.1-4 (2021-12-08 21:30), 0.1-5 (2022-01-07 14:50)
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