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Table 4. Average <strong>of</strong> bright sunshine hours for 2005-2007<br />

(Source: Correspondence with Assist. Pr<strong>of</strong>. Dr. Koray Ülgen)<br />

Months hour<br />

January 3,10<br />

February 4,46<br />

March 6,45<br />

April 6,63<br />

May 8,82<br />

June 10,41<br />

July 12,01<br />

August 10,25<br />

September 9,13<br />

October 7,49<br />

November 4,90<br />

December 3,52<br />

Eqs. (1.3) <strong>and</strong> (1.4) were calculated <strong>and</strong> the results <strong>of</strong> Eq. (1.3) were given in<br />

Table 5. Hₒ values calculated between 11,581.1 (W/m²) <strong>and</strong> 4,088.88 (W/m²). And the<br />

graph <strong>of</strong> Hₒ was added to the study as Figure 5.<br />

14000,00<br />

12000,00<br />

10000,00<br />

8000,00<br />

6000,00<br />

4000,00<br />

2000,00<br />

0,00<br />

Hₒ (W/m²)<br />

JAN.<br />

FEB.<br />

MARCH<br />

APRIL<br />

MAY<br />

JUNE<br />

JULY<br />

Figure 5. The graph <strong>of</strong> monthly-average daily extraterrestrial <strong>radiation</strong><br />

AUG.<br />

SEPT.<br />

OCT.<br />

NOV.<br />

DEC.<br />

Months<br />

29

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