An estimation of evapotranspiration by MHBJHHHsimple models in the semi arid Mediterranean zone of the North-West of Algeria

Autor:	Salima Rezak, Farid Rahal, Abdelkrim Khaldi
Rok vydání:	2017
Předmět:	Mediterranean climate Environmental Engineering Mean squared error Evaporation Statistical parameter Atmospheric sciences Arid North west Evapotranspiration Earth and Planetary Sciences (miscellaneous) Environmental science Waste Management and Disposal Mean bias error Water Science and Technology
Zdroj:	International Journal of Hydrology Science and Technology. 7:390
ISSN:	2042-7816 2042-7808
Popis:	Four temperature-based evapotranspiration models were applied and compared to daily measurements obtained by a Piche evaporimeter in a Mediterranean climate zone of the semi arid type in the North-West of Algeria. Direct measurements of evaporation obtained by Piche on five stations were corrected by the Bouchet model. Evapotranspiration was calculated according to the following models: Blaney-Criddle, Blaney-Criddle (SCS), Linacre and Romanenko. The results showed that the best model is the Blaney-Criddle (SCS) one which gave excellent results for almost all of the stations studied, presenting the lowest statistical parameters [root mean squared error (RMSE), mean bias error (MBE) and t-statistic and a higher index of agreement (d). The Blaney-Criddle (SCS) also showed the lowest overestimation of evapotranspiration compared with other models. Therefore, the Blaney-Criddle (SCS) model is the most suitable model for estimating the daily evapotranspiration when direct evaporation measurements are not available.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0876f91e74a89e903a0d19b3174fdfc1 https://doi.org/10.1504/ijhst.2017.10008854 Zobrazit plný text záznamu