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Official Journal of the Japan Wood Research Society

Table 1 Weather conditions of the seven test sites in Japan

From: Surface deterioration of wood plastic composites under outdoor exposure

Outdoor exposure test sites

Meteorological observation sites of the Japan meteorological agency

North latitude (°)

East longitude (°)

Height above sea level (m)

Annual average temperaturea (°C)

Annual sunlight hoursa (h)

Annual precipitationa (mm)

Sapporo

Sapporo

43

141

6

9.0

1749

1100

Yamagata

Yamagata

38

140

109

11.8

1631

1153

Akishima

Hachioji

36

139

96

14.4

1869

1596

Takaoka

Fushiki

37

137

3

14.0

1649

2254

Kure

Kure

34

133

2

16.3

2087

1383

Kochi

Kochi

34

134

7

17.0

2178

2584

Miyazaki

Miyazaki

32

131

63

17.7

2127

2562

  1. aData are average values of the past 30 years (1983–2012)