Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt
Title | An Introduction to the Hyperspace of Penman-Monteith Reference Evapotranspiration |
Publication Type | Papers in International Journals |
Year of Publication | 2019 |
Authors | Haie, N., Pereira R. M. S., Machado G. J. B. Q. A., and Shahidian S. |
Abstract | Evapotranspiration is crucial and very relevant to hydrology, particularly under global warming and the growing water scarcity. The FAO Penman-Monteith is the highly used method to calculate the daily standardized reference evapotranspiration (ETo). It utilizes seven variables, mostly climatic, and produces a complex n-dimensional domain (or hyperspace). No study has presented the internal structure of this 8D space which forms the objective of the present work. To this end, a computer program called HyperET is developed to facilitate the advancement of two intertwined processes: creating windows into the hyperspace and understanding the resulting regions of the domain. The former gives 2D figures for partial analysis and the latter presents significant infeasible regions which are subspaces composed of ETo values outside its chosen minimum and maximum (or thresholds). HyperET is expensive computationally and presents an ETo domain that resembles Swiss holey cheese with three types of infeasible regions and emerging non-linearity.
|
Journal | International Journal of Hydrology Science and Technology, IJHST |
Volume | 9 |
Issue | 1 |
Pagination | 48–64 |
Date Published | 2019-01-02 |
Publisher | Inderscience |
ISSN | 2042-7816; 2042-7808 |
DOI | 10.1504/IJHST.2019.096797 |
URL | https://www.inderscience.com/info/inarticle.php?artid=96797 |
Keywords | Climate change, Domain discretization, hydrology, Hyperspace HyperET, Infeasible regions of ETo, Irrigation, n-dimensional analysis, Penman-Monteith Evapotranspiration (ETo), Sefficiency (Sustainable efficiency), Water management and design, Water scarcity |
Citation | Haie, N., Pereira, R.M.S., Machado, G.J., Shahidian, S. (2019) An introduction to the hyperspace of Penman-Monteith reference evapotranspiration. Int. J. Hydrology Science and Technology (IJHST), 9:1, pp.48–64. DOI: 10.1504/IJHST.2019.096797
|
Rights | embargoedAccess (2 Years) |
Peer reviewed | yes |
Status | published |
The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.
Currently CTAC aggregates 24 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more
Centro de Território, Ambiente e Construção
Escola de Engenharia da Universidade do Minho
Campus de Azurém
4800-058 Guimarães, Portugal
Phone: + 351 253 510 200 (517 206)
Fax: + 351 253 510 217
Email: geral@ctac.uminho.pt