STOCHASTIC ALTERNATIVES TO MODELS BASED ON THE DALTON'S APPROACH FOR ESTIMATING MONTHLY PAN EVAPORATION FROM RESERVOIR DAMS IN ALGERIA

Benchaiba Leila; Houichi Larbi; Amarchi Hocine

Article Details

STOCHASTIC ALTERNATIVES TO MODELS BASED ON THE DALTON'S APPROACH FOR ESTIMATING MONTHLY PAN EVAPORATION FROM RESERVOIR DAMS IN ALGERIA

Authors:

Benchaiba Leila | Houichi Larbi | Amarchi Hocine

Publisher:

Université Mohamed Khider de Biskra

Journal:

LARHYSS Journal Vol.19 Issue 4, pp.7-17

Document Type:

Article

Publication Date:

12/2022

Document Language:

English

Document ID (Org No.):

2001912775

pISSN:

2602-7828

Keywords:

Abstract:

 In this contribution, we assess the capabilities of monthly pan evaporation estimation using two methods: i) the first one is a purely stochastic model designed by ARIMA (autoregressive with integrated moving average), which is based only on endogenous variables, and ii) the second is derived from Dalton's physical approach based on exogenous variables The areas of application of the two methods are two sites of two dams, Ain Zada and Beni Haroun, with distinct climates of Algeria: semiarid and subhumid The actual evaporations are measured directly from the pans for seven years The first six years of observations are used for the calibration of the two models, and the last year is reserved for the test The performance of the models is evaluated using three commonly used metrics, namely, the correlation coefficient (R), root mean square error (RMSE) and mean absolute percentage error (MAPE) According to the results of this research, it appears that ARIMA models perform better than models derived from Dalton’s approach with significantly improved predictive capabilities.

Article Details

STOCHASTIC ALTERNATIVES TO MODELS BASED ON THE DALTON'S APPROACH FOR ESTIMATING MONTHLY PAN EVAPORATION FROM RESERVOIR DAMS IN ALGERIA

Authors: Benchaiba Leila | Houichi Larbi | Amarchi Hocine

Publisher: Université Mohamed Khider de Biskra

Journal: LARHYSS Journal Vol.19 Issue 4, pp.7-17

Document Type: Article

Publication Date: 12/2022

Document Language: English

Document ID (Org No.): 2001912775

pISSN: 2602-7828

ARIMA

pan evaporation

Dalton’s approach

monthly

climate

Issues

Authors:

Benchaiba Leila | Houichi Larbi | Amarchi Hocine

Publisher:

Université Mohamed Khider de Biskra

Journal:

LARHYSS Journal Vol.19 Issue 4, pp.7-17

Document Type:

Article

Publication Date:

12/2022

Document Language:

English

Document ID (Org No.):

2001912775

pISSN:

2602-7828