Analysis of the Earth's Radiation Budget over Iraq | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 25, Issue 2, June 2014, Pages 177-184 | ||
| Author | ||
| Iqbal Hussain Abd AlKareem | ||
| Abstract | ||
| The global energy balance is important for Earth's climate. When visible solar radiation from the Sun reaches the Earth, some of it is reflected or scattered directly back into space as shortwave radiation and some of it is absorbed the earth surface and atmospheric constituents specially the clouds. In the absence of clouds, absorption happens mainly at the surface. The absorbed energy warms the Earth's surface, which, in turn, emits this energy at a longer wavelength. The aim of this research is to investigate some components of the Earth's radiation budget over Iraq for the period 1983 to 2005 . Monthly means data were obtained from NASA solar energy meteorology project for four selected cities in Iraq. These represent the northern, central, western, and southern parts of Iraq. Results showed that the top of the atmosphere insolation curves were smooth and have similar behavior for all cities and its value varies from one location to another depending on the latitude of the place. The results also indicated that the cloud has significant effects on solar insolation during winter season. The results illustrated that the western region of Iraq receives the highest solar radiations but receives relatively low downward longwave flux. | ||
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