Year

Mean CH₄ (ppmv)

Mean O₃ (ppmv)

Solar radiation (MJ/m²)

Relative humidity

(%)

Temperature (˚C)

Wind speed

(m/s)

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

1740.994

1738.120

1737.331

1730.918

1740.740

1743.628

1750.178

1746.312

1759.923

1773.787

56.262

57.253

54.501

57.139

55.272

58.556

57.259

58.033

58.319

56.800

22.973

22.723

21.970

23.072

22.791

23.062

22.251

23.548

23.921

24.012

23.582

24.963

81.567

81.207

79.705

80.560

79.938

78.871

84.289

84.700

85.781

87.538

87.920

87.388

23.361

23.215

23.381

23.229

23.037

22.977

23.536

23.693

22.669

22.724

22.898

23.315

2.327

2.329

2.415

2.346

2.341

2.324

2.235

2.242

2.068

2.093

2.092

2.122