Hajdini et al. (2025) Data Analysis and Evaluation of the Impact of Meteorological Parameters on the (eto) Calculated by Fao Penman-Monteith Equation

Identification

• Journal: Journal of Natural Sciences
• Year: 2025
• Date: 2025-12-03
• Authors: Glejdis Hajdini, Dhurata Premti, Ilirjan Malollari, Shamaila Zia-Khan, Klaus Spohrer
• DOI: 10.70827/daaeoti

Research Groups

• Department of Industrial Chemistry, Faculty of Natural Sciences, University of Tirana, Tirana, Albania
• Universität Hohenheim, Institut für Agrartechnik (440e), Stuttgart, Germany

Short Summary

This study analyzed the influence of meteorological parameters on daily reference evapotranspiration (ETo) calculated by the FAO Penman-Monteith equation in Prrenjas, Albania, finding strong positive correlations with wind speed, sunshine hours, and solar radiation, and a strong negative correlation with relative humidity.

Objective

• To determine the correlation between daily reference evapotranspiration (ETo) values and various meteorological parameters (temperature, humidity, wind speed, solar radiation, sunshine hours, vapor pressure deficit) using the FAO Penman-Monteith equation.

Study Configuration

• Spatial Scale: Sutaji village, Rrajcë Administrative Unit, Prrenjas Municipality, Elbasan District, eastern Albania (latitude 41°6'6"N, longitude 20°34'41"E), a small area where medicinal plants are cultivated.
• Temporal Scale: Daily measurements from January 15 to August 2023.

Methodology and Data

• Models used: FAO Penman-Monteith Equation (FAO-PM)
• Data sources: Meteorological data collected from a meteorological station installed by PiKt company in Sutaj, Prrenjas, Albania. Parameters included daily minimum temperature, maximum temperature, relative humidity, wind speed, and sunshine hours.

Main Results

• Strong positive linear correlations were observed between ETo and maximum temperature (R² = 0.8069), minimum temperature (R² = 0.726), maximum solar radiation (R² = 0.7959), wind speed (R² = 0.5974), sunshine hours (R² = 0.7699), and vapor pressure deficit (R² = 0.7939).
• A strong negative linear correlation was found between ETo and minimum relative humidity (R² = 0.9111) and average relative humidity (R² = 0.7846).
• The highest daily ETo value recorded was 14.196 mm/day on March 26, 2023, while the lowest was 1.0089 mm/day on February 4, 2023.
• The mean ETo value for the study period was 5.9199 mm/day, with a standard deviation of 2.7172, indicating high variability.

Contributions

• Provides specific quantitative correlations between ETo and key meteorological parameters for the Prrenjas region of Albania, which can be adapted to other areas with similar climatic conditions.
• Emphasizes the critical importance of monitoring multiple meteorological parameters for accurate irrigation planning and efficient water resource management.
• Offers a theoretical basis for future studies on the response of ETo to climatic changes, aiding in the development of precise irrigation schedules and sustainable crop production strategies.

Funding

• The Project Science-to-Field Optimal production of medicinal and aromatic plants (MAPs) in Albania - ALBAMAP (Ref. no. 01DS21005A), supported by BMBF under the Guideline for the Promotion of Research and Development Projects between Germany and the Western Balkan States (WBC2019).

Citation

@article{Hajdini2025Data,
  author = {Hajdini, Glejdis and Premti, Dhurata and Malollari, Ilirjan and Zia-Khan, Shamaila and Spohrer, Klaus},
  title = {Data Analysis and Evaluation of the Impact of Meteorological Parameters on the (eto) Calculated by Fao Penman-Monteith Equation},
  journal = {Journal of Natural Sciences},
  year = {2025},
  doi = {10.70827/daaeoti},
  url = {https://doi.org/10.70827/daaeoti}
}