Studying the Changes in Solar Radiation and Their Influence on Temperature Trend in Iraq for a Whole Century

Main Article Content

Basim Abdulsada Al-Knani
Iqbal H. Abdulkareem
Hussain Abodi Nemah
Zahraa Nasir

Abstract

Most studies indicated that the values ​​of atmospheric variables have changed from their general rates due to pollution or global warming etc. Hence, the research indicates the changes of direct solar radiation values ​​over a whole century i.e. from 1900 to 2000 depending on registered data for four cities, namely (Mosul - Baghdad - Rutba - Basra. Moreover, attemptsto correlate the direct solar radiation with the temperature values have been ​​recorded over that period. The results showed that there is a decreasing pattern of radiation quantities over time throughout the study period, where the value of direct radiation over the city of Baghdad 5550 w/m2 was recorded in the year 1900, but this ratio decreased clearly to approximately 5400 w/m2 in the year 2000, which is perhaps due to the increase of general pollution rates in the atmosphere. The results also showed that the city of Rutba recorded the highest annual rate of radiation quantities, and Baghdad with Mosul recorded the lowest radiation ratios compared to the rest of the cities, in addition to that there was a large convergence of radiation ratios between them to some extent. The results showed that there is a sharp drop in radiation ratios, specifically in the years1980and 1990. As for the extent of the relationship for solar radiation with temperature levels throughout the study period, it was found that there is an inverse relationship between them, and this confirms that the cause of high temperatures is not because of increased solar radiation, but it may rather due to other reasons such as increased greenhouse gases.

Downloads

Download data is not yet available.

Article Details

How to Cite
1.
Al-Knani BA, Abdulkareem IH, Nemah HA, Nasir Z. Studying the Changes in Solar Radiation and Their Influence on Temperature Trend in Iraq for a Whole Century. Baghdad Sci.J [Internet]. 2021Jun.20 [cited 2021Dec.4];18(2(Suppl.):1076. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/5630
Section
article

References

AkittJ W, Some observations on the greenhouse effect at the Earth's surfaceSpectrochim. Acta A Mol. Biomol. Spectrosc. 2018; 188: 127-134.‏

Bhushan, M, Jha R, Bhardwaj R. Reduced band gap and diffusion controlled spherical n-type ZnS nanoparticles for absorption of UV-Vis region of solar spectrum. J Phys Chem. Solids.2019;135: 109-121.

Van den Berg T J. Intraocular light scatter, reflections, fluorescence and absorption- what we see in the slit lamp.OpththalPhysl Opt. 2018; 38:6-25.‏

Huang L, Deng L, Li A, Gao R, Zhang L, Lei W. Analytical model for solar radiation transmitting the curved transparent surface of solar greenhouse. JBuild Eng. 2020;32: 101-120.

Wedian G, Hussain A, Basim A. Study of geopotential height values and its ineraction with temperature degree over Iraq.Plant Arch. 2020;20: 1317-1322.

Ruiz-Arias JA, GueymardC A. Worldwide inter-comparison of clear-sky solar radiation models: Consensus-based review of direct and global irradiance components simulated at the earth surface. Sol Energy.2018; 168: 10-29.‏

Bishop J,Rossow W. Spatial and temporal variability of global surface solar irradiance.J Geophys Res. 1991; 96:16839-16858.

Bernard W, Effects of solar radiation on building and thermal comfort, Ph.D. Thesis, University of Hertfordshire. 2003;4: 31-51.

BoisB, Wald L, Pieri P, Van Leeuwen C, Commagnac L, Chery P,et al.estimating spatial and temporal variations in solar radiation within Bordeaux winegrowing using remotely sensed data. J Int Sci Vigne Vin. 2008; 42: 15-25.

AL-Salihi A, Mayla M, Ali J,Estimation of Global Solar Radiation on Horizontal Surface Using Routine Metrological Measurements for Different Cities in Iraq.Asian J Sci Res. 2010; 8: 240-248.

Hazem HH, Hussain A N, Basim A.estimating seasonal starting points as a result of climate change impaction.Plant Arch. 2019; 19: 1525-1528.