Data base and compare

1.1. Information of stations

The global solar radiation and sunshine duration data during the period from 1994 to 2003 reported in this paper were provided by the China Meteorological Administration (CMA). Professor Tien Shengyuan has divided climatic zone of China into eight large-scale climatic zones, and he also has advanced the representative city for every climatic zone in the year of 1989. The information of these cities is as follows [3]

Table. 1. The information of representative stations

number

station

latitude(°N)

longitude (°E)

altitude (m)

data duration

1

Harbin

45°45’

126°46’

142.3

1994-2003

2

Lanzhou

36°03’

103°53’

1517.2

1994-2003

3

Beijing

39°48’

116°28’

31.3

1994-2003

4

Wuhan

30°37’

114°08’

23.1

1994-2003

5

Kunming

25°01’

102°41’

1892.4

1994-2003

6

Guangzhou

23°10’

113°20’

41

1994-2003

7

Urumchi

43°47’

87°39’

935

1994-2003

8

Lhasa

29°40’

91°08’

3648.9

1994-2003