Preprints
https://doi.org/10.5194/gmd-2021-163
https://doi.org/10.5194/gmd-2021-163

Submitted as: model description paper 21 Jul 2021

Submitted as: model description paper | 21 Jul 2021

Review status: this preprint is currently under review for the journal GMD.

Implementing the Water, HEat and Transport model in GEOframe WHETGEO-1D v.1.0: algorithms, informatics, design patterns, open science features, and 1D deployment

Niccolò Tubini1 and Riccardo Rigon2 Niccolò Tubini and Riccardo Rigon
  • 1Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy
  • 2Center Agriculture Food Environment, University of Trento, Via Mesiano 77, 38123 Trento, Italy

Abstract. This paper presents WHETGEO and its 1D deployment, a new, physically based model simulating the water and energy budgets in a soil column. The purpose of this contribution is twofold. First, we discuss the mathematical and numerical issues involved in solving the Richardson-Richards equation, conventionally known as Richards' equation, and the heat equation in heterogeneous soils. In particular, for the Richardson-Richards equation (R2) we take advantage of the nested Newton-Casulli-Zanolli (NCZ) algorithm that ensures the convergence of the numerical solution in any condition. Second, starting from numerical and modelling needs, we present the design of a software that is intended to be the first building block of a new, customisable, land-surface model that is integrated with process-based hydrology. WHETGEO is developed as an open-source code, adopting the Object-Oriented paradigm and a generic programming approach in order to improve its usability and expandability. WHETGEO is fully integrated in the GEOframe/OMS3 system allowing the use of the many ancillary tools it provides. Finally the paper presents the 1D deployment of WHETGEO, WHETGEO-1D, which has been tested against the available analytical solutions presented in Appendix.

Niccolò Tubini and Riccardo Rigon

Status: open (until 15 Sep 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Niccolò Tubini and Riccardo Rigon

Data sets

Data set Niccolo Tubini, Riccardo Rigon https://zenodo.org/record/4749319

Model code and software

Source code WHETGEO-1D Niccolò Tubini, Riccardo Rigon https://doi.org/10.5281/zenodo.5112727

OMS Project WHETGEO-1D Niccolò Tubini, Riccardo Rigon https://github.com/GEOframeOMSProjects/OMS_Project_WHETGEO1D

WHETGEO-1D Niccolò Tubini, Riccardo Rigon https://github.com/geoframecomponents/WHETGEO-1D

Niccolò Tubini and Riccardo Rigon

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Short summary
This paper presents WHETGEO and its 1D deployment, a new, physically based model simulating the water and energy budgets in a soil column. WHETGEO-1D is intended to be the first building block of a new, customisable, land-surface model that is integrated with process-based hydrology. WHETGEO is developed as an open-source code and is fully integrated in the GEOframe/OMS3 system allowing the use of the many ancillary tools it provides.