Calibration of GFS model by using real time weather data for water requirement forecasting of citrus crop at the Moroccan Souss basin
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 11
Abstract
The work is about validation of Global Forecast System (GFS) model for citrus water requirement prediction in the semi-arid Moroccan region called Souss-basin. The technique consists on using real time weather data installed to calculate Evapotranspiration (ETo) and statistically compare it to forecast values. GFS model prediction was enough accurate for ETo estimated on daily basis through air temperature, relative humidity and solar radiation forecasting (89,3% for Souss Upstream and 76,1% for Souss Center). However, no logic relation could be found prediction compared to measurements of Rain and Wind. The annual predicted irrigation water needs (ETc) was 7626,5 m3/ha, when the measured one was likely 7669,1 m3/ha in Souss Upstream; and when it comes to Souss Center more closer to sea, this value is predicted to be only 5716,3 m3/ha with a good correlation to calculated measurements showing 5948,7 m3/ha Nevertheless, Calibrations must consider seasons of the year; the tested model was more accurate during cold period from 01/10/16 to 31/03/17, but in the hot period, predicted temperature and ETo become overestimated.
Authors and Affiliations
Athman Hafidi, Rachid Salghi, Ataa Abouatallah, Mohamed Ayoub, Fatima Ayoub, Naziha AFFI
Keywords
Related Articles
- EP ID EP392801
- DOI 10.9790/9622-0711020111.
- Views 114
- Downloads 0
Selection of Best Employee by using Weighted fuzzy Soft Matrix
Decision making is a process to select best out of different alternatives possibilities. Here every process of decisions produces a final choice that may or not prompt action. It is the study of identifying the best choi...
Fusion of Multispectral and Panchromatic Satellite Images in Environmental Issues
Image fusion of multispectral and panchromatic satellite image is used to combine spatial detail of the panchromatic image of high spatial resolution and spectral information of multispectral image of low resolution, in...
Reuse & Recirculation of Filter Backwash Water of Water Treatment Water
Most of the water treatment plant, filtration is done by means of sand filtration process. Due to continuous filtration process, sand pores get clogged and decreases the efficiency. For mitigating such problem, reverse f...
Development of Traffic Sign Assets Management System in Indian Context
Traffic situation at uncontrolled intersections is complex, especially in highly heterogeneous traffic conditions, as in India. Available gap is used by vehicles to clear the intersection as no control measures exist at...
Photonic Band Gap in One-Dimensional Ternary Metal-Dielectric Photonic Crystal
In this present communication, we have theoretically studied the photonic band gap in ternary metal-dielectric photonic crystal which can be significantly enlarged when air is considered as a dielectric constant. All the...