geographical and seasonal variations in solar radiation

see also:     table

3D graph

2D graph at 40o

 
 

 
     
 

daily solar radiation / (MJ/m2)

latitude Feb 26 Feb 04 Jan 13 Dec 22 Nov 30 Nov 08 Oct 16 Sep 23 Aug 31 Aug 08 Jul 15 Jun 20 May 29 May 06 Apr 13 Mar 21 latitude
90

 

 

 

 

 

 

 

 

17.7

32.5

42.2

45.7

42.4

32.8

18.8

 

90
80

0.3

 

 

 

 

 

0.3

6.5

17.7

32.0

41.6

45.0

41.8

32.3

18.0

6.6

80
70

5.6

1.0

 

 

 

1.0

5.5

12.9

22.0

31.5

39.7

43.0

39.9

31.8

22.3

13.0

70
60

11.7

6.2

3.1

2.1

3.1

6.2

11.6

18.8

26.7

34.0

39.4

41.6

39.7

34.4

27.0

19.0

60
50

17.8

12.3

8.7

7.5

8.7

12.1

17.6

24.1

30.8

36.5

40.5

42.0

40.7

36.8

31.1

24.4

50
40

23.5

18.4

14.9

13.5

14.8

18.2

23.1

28.7

33.9

38.3

41.1

42.1

41.3

38.6

34.3

29.1

40
30

28.4

24.1

21.0

19.8

20.9

23.9

28.2

32.5

36.3

39.1

40.8

41.4

41.1

39.4

36.7

32.9

30
20

32.7

29.3

26.7

25.7

26.6

29.1

32.3

35.3

37.5

38.9

39.5

39.7

39.7

39.2

38.0

35.7

20
10

35.9

33.8

31.9

31.1

31.8

33.5

35.5

37.0

37.7

37.6

37.2

37.1

37.4

37.9

38.1

37.4

10
0

38.0

37.3

36.3

35.8

36.1

36.9

37.6

37.6

36.6

35.2

34.0

33.5

34.1

35.5

37.1

38.0

0
-10

39.1

39.7

39.7

39.6

39.5

39.4

38.6

37.0

34.6

32.0

29.9

29.2

30.0

32.3

35.0

37.4

-10
-20

39.0

41.1

42.2

42.4

42.0

40.7

38.5

35.3

31.5

27.8

25.1

24.1

25.2

28.0

31.8

35.7

-20
-30

37.7

41.3

43.5

44.2

43.3

40.9

37.2

32.5

27.4

22.8

19.7

18.5

19.7

23.1

27.8

32.9

-30
-40

35.2

40.5

43.8

45.0

43.6

40.1

34.8

28.7

22.6

17.4

13.9

12.6

14.0

17.5

22.8

29.1

-40
-50

31.9

38.6

43.2

44.8

43.1

38.3

31.5

24.1

17.2

11.6

8.2

7.0

8.2

11.7

17.3

24.4

-50
-60

27.7

36.0

42.1

44.4

41.9

35.7

27.3

18.8

11.3

5.9

2.9

2.0

2.9

5.9

11.4

19.0

-60
-70

22.9

33.3

42.4

45.9

42.2

33.0

22.6

12.9

5.3

1.0

 

 

 

1.0

5.4

13.0

-70
-80

18.4

33.8

44.4

48.1

44.2

33.5

18.2

6.5

0.3

 

 

 

 

 

0.3

6.6

-80
-90

18.4

34.4

45.1

48.8

44.8

34.0

18.2

 

 

 

 

 

 

 

 

 

-90
 
 

Source: CRC Handbook of Chemistry and Physics (D.R. Lide, Editor-in-Chief), 83rd edition (2002-2003), CRC Press, Boca Raton, FL, 2002, p.14-26.  [NOTE]

 
 
UPDATED : 2004-12-12 WEBSITE  EDITOR : Krešimir J. Adamić