Relationships between daily solar irradiance and maximum temperature in Iraq

Authors

  • MOHAMMED HAZIM KHALEEL College of Science, Mustansiriyah University, Baghdad, Iraq
  • JAMAL S. ABD AL-RUKABIE Department of Science, Collage of Basic Education, University of Sumer, Thi-Qar, Iraq
  • MONIM H. AL-JIBOORI Atmospheric Sciences Department, College of Science, Mustansiriyah University, Baghdad, Iraq
  • ZAHRAA A. AL-RAMAHY Atmospheric Science Department, College of Science, Mustansiriyah University, Baghdad, Iraq

DOI:

https://doi.org/10.54386/jam.v27i1.2708

Keywords:

Solar irradiance, Maximum temperature, POWER data, Correlation, Regression, Iraq

Abstract

This study investigates the relation between daily solar irradiance (SI) and maximum air temperature (Tmax) over six cities in Iraq (Basra, Shanafiya, Baghdad, Rutba, Kirkuk, and Shakhan) using NASA POWER data for the period 2014-2023. Results revealed that in the arid southern provinces such as Basra, the annual mean SI exceeds 5.6 kWh m-2day-1 and Tmax frequently exceeds 48°C during the summer months while in the northern provinces lower SI and Tmax values were observed. The seasonal variation indicated peak values of SI during June while peak values of Tmax were observed in July-August. A strong relationship between SI and Tmax were obtained with R2 of 0.75 to 0.82 at different locations.

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Published

01-03-2025

How to Cite

KHALEEL, M. H., AL-RUKABIE, J. S. A., AL-JIBOORI, M. H., & AL-RAMAHY, Z. A. (2025). Relationships between daily solar irradiance and maximum temperature in Iraq. Journal of Agrometeorology, 27(1), 67–72. https://doi.org/10.54386/jam.v27i1.2708

Issue

Vol. 27 No. 1 (2025): March

Section

Research Paper

Categories

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Copyright (c) 2025 MOHAMMED HAZIM KHALEEL, JAMAL S. ABD AL-RUKABIE, MONIM H. AL-JIBOORI, ZAHRAA A. AL-RAMAHY

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