Validation results - CAMS radiation v2.7 (Obsolete) - 14 BSRN stations

Last update: Dec. 2017

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Compared to this obsolete ones (CAMS Radiation with McClear v2 WITHOUT bias correction), the new CAMS radiation validation results are of course largely improved compared to the production :

  • GHI bias is largely reduced for all stations except Sede Boqer and De Aar. The RMSE is improved for all stations. The correlation is unchanged.
  • DNI bias is largely reduced for all stations except Brasilia and De Aar. RMSE and correlation are improved for all stations except De Aar.

NB: Please note that this version of CAMS radiation is not available anymore for download

Check Global Horizontal Irradiation and Direct Normal Irradiation validation results

Validation results

Quality assessment results of GHI values

CAMS Radiation -- GHI Quality assessment results vs. the BSRN stations
MONTHLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(kWh/m²)
Bias
(kWh/m2)
(relative in %
)
RMSE
(kWh/m2)
(relative in %
)
Correl. coeff.
Lerwick 37 65.7 -0.6 (-0.9%) 2.7 (4.1%) 0.999
Toravere 124 71.9 -1.6 (-2.2%) 5.0 (7.0%) 0.996
Lindenberg 37 91.1 -0.9 (-1.0%) 6.5 (7.1%) 0.994
Cabauw 112 88.2 4.8 (5.4%) 7.0 (7.9%) 0.997
Camborne 41 94.4 3.8 (4.0%) 5.6 (6.0%) 0.998
Palaiseau 93 98.1 2.5 (2.6%) 5.5 (5.6%) 0.996
Payerne 88 99.5 4.1 (4.1%) 6.5 (6.6%) 0.997
Carpentras 120 129.1 0.3 (0.2%) 4.0 (3.1%) 0.998
Cener 44 115.7 -0.6 (-0.5%) 6.1 (5.3%) 0.995
Sede Boqer 100 169.5 -7.3 (-4.3%) 8.6 (5.1%) 0.997
Tamanrasset 124 175.0 -2.7 (-1.5%) 5.4 (3.1%) 0.994
Brasilia 65 147.6 3.4 (2.3%) 5.7 (3.9%) 0.987
Sao Martinho da Serra 72 143.8 -1.7 (-1.2%) 4.5 (3.1%) 0.996
De Aar 11 172.9 -5.0 (-2.9%) 5.9 (3.4%) 0.998

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CAMS Radiation -- GHI Quality assessment results vs. the BSRN stations
DAILY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias
(Wh/m2)
(relative in %
)
RMSE
(Wh/m2)
(relative in %
)
Correl. coeff.
Lerwick 1067 2266.6 -22.1 (-1.0%) 439.4 (19.4%) 0.976
Toravere 3538 2427.5 -51.5 (-2.1%) 433.9 (17.9%) 0.980
Lindenberg 1121 3005.0 -30.1 (-1.0%) 455.7 (15.2%) 0.979
Cabauw 3320 2961.4 159.9 (5.4%) 457.3 (15.4%) 0.981
Camborne 1213 3183.8 128.2 (4.0%) 435.3 (13.7%) 0.983
Palaiseau 2816 3244.0 83.9 (2.6%) 408.4 (12.6%) 0.984
Payerne 2554 3343.6 137.4 (4.1%) 432.1 (12.9%) 0.985
Carpentras 3547 4378.5 9.4 (0.2%) 357.9 (8.2%) 0.990
Cener 1251 3987.1 -22.1 (-0.6%) 446.0 (11.2%) 0.982
Sede Boqer 2897 5765.1 -246.1 (-4.3%) 469.6 (8.1%) 0.980
Tamanrasset 3494 6000.3 -85.6 (-1.4%) 428.7 (7.1%) 0.962
Brasilia 1883 5247.5 121.5 (2.3%) 591.8 (11.3%) 0.903
Sao Martinho da Serra 2171 4778.2 -57.2 (-1.2%) 490.8 (10.3%) 0.979
De Aar 332 5717.8 -164.9 (-2.9%) 465.2 (8.1%) 0.978

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CAMS Radiation -- GHI Quality assessment results vs. the BSRN stations
HOURLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias
(Wh/m2)
(relative in %
)
RMSE
(Wh/m2)
(relative in %
)
Correl. coeff.
Lerwick 12380 195.2 -1.9 (-1.0%) 65.8 (33.7%) 0.937
Toravere 39089 210.2 -3.7 (-1.8%) 64.4 (30.7%) 0.951
Lindenberg 13141 255.8 -2.7 (-1.1%) 66.1 (25.8%) 0.956
Cabauw 39252 250.5 13.4 (5.3%) 65.1 (26.0%) 0.959
Camborne 14506 266.0 10.5 (4.0%) 65.8 (24.7%) 0.962
Palaiseau 33187 275.2 6.8 (2.5%) 61.5 (22.3%) 0.965
Payerne 29137 290.2 12.3 (4.2%) 65.0 (22.4%) 0.968
Carpentras 42857 362.1 0.6 (0.2%) 54.9 (15.2%) 0.980
Cener 15131 333.4 -2.0 (-0.6%) 67.7 (20.3%) 0.968
Sede Boqer 32465 519.0 -22.4 (-4.3%) 66.5 (12.8%) 0.980
Tamanrasset 42312 503.4 -7.6 (-1.5%) 68.4 (13.6%) 0.978
Brasilia 22799 435.5 10.2 (2.3%) 110.8 (25.4%) 0.933
Sao Martinho da Serra 25992 399.4 -5.0 (-1.3%) 80.7 (20.2%) 0.966
De Aar 3819 495.3 -14.3 (-2.9%) 68.5 (13.8%) 0.977

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CAMS Radiation -- GHI Quality assessment results vs. the BSRN stations
15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias
(Wh/m2)
(relative in %
)
RMSE
(Wh/m2)
(relative in %
)
Correl. coeff.
Lerwick 49008 49.6 -0.4 (-0.9%) 20.5 (41.3%) 0.907
Toravere 154257 57.8 -1.3 (-2.2%) 21.8 (37.7%) 0.923
Lindenberg 51069 66.0 -0.7 (-1.0%) 21.5 (32.6%) 0.928
Cabauw 152120 64.9 3.5 (5.4%) 21.4 (33.0%) 0.930
Camborne 56327 68.7 2.8 (4.0%) 21.0 (30.6%) 0.939
Palaiseau 129165 70.9 1.8 (2.6%) 20.7 (29.2%) 0.940
Payerne 114961 76.1 3.1 (4.1%) 21.3 (28.0%) 0.948
Carpentras 164673 94.3 0.2 (0.2%) 17.5 (18.6%) 0.968
Cener 57987 87.8 -0.5 (-0.5%) 21.9 (25.0%) 0.947
Sede Boqer 128883 133.1 -5.7 (-4.3%) 20.2 (15.2%) 0.967
Tamanrasset 163127 133.0 -2.0 (-1.5%) 22.6 (17.0%) 0.962
Brasilia 87298 115.1 2.8 (2.4%) 37.0 (32.1%) 0.883
Sao Martinho da Serra 99206 105.3 -1.2 (-1.2%) 26.7 (25.3%) 0.941
De Aar 14737 129.1 -3.8 (-2.9%) 22.9 (17.8%) 0.957

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Quality assessment results of DNI values

CAMS Radiation -- DNI Quality assessment results vs. the BSRN stations
MONTHLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(kWh/m²)
Bias
(kWh/m2)
(relative in %
)
RMSE
(kWh/m2)
(relative in %
)
Correl. coeff.
Lerwick 2 82.5 -7.6 (-9.2%) 7.6 (9.2%) 1.000
Toravere 53 134.9 -25.8 (-19.1%) 27.6 (20.5%) 0.956
Lindenberg 23 115.8 -6.8 (-5.8%) 11.8 (10.2%) 0.969
Cabauw 69 100.3 7.4 (7.4%) 9.9 (9.9%) 0.980
Camborne 26 92.9 8.3 (8.9%) 11.2 (12.0%) 0.974
Palaiseau 71 110.5 2.0 (1.8%) 8.1 (7.4%) 0.974
Payerne 46 134.3 1.6 (1.2%) 8.9 (6.6%) 0.973
Carpentras 120 154.2 -5.4 (-3.5%) 8.2 (5.3%) 0.995
Cener 36 136.8 -6.5 (-4.7%) 9.7 (7.1%) 0.989
Sede Boqer 97 185.5 -26.4 (-14.2%) 29.8 (16.1%) 0.968
Tamanrasset 118 181.7 11.5 (6.3%) 24.9 (13.7%) 0.884
Brasilia 55 139.6 5.1 (3.6%) 10.1 (7.3%) 0.988
Sao Martinho da Serra 39 143.3 -8.5 (-5.9%) 11.8 (8.2%) 0.977
De Aar 12 236.5 -19.9 (-8.4%) 21.3 (9.0%) 0.982

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CAMS Radiation -- DNI Quality assessment results vs. the BSRN stations
DAILY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias
(Wh/m2)
(relative in %
)
RMSE
(Wh/m2)
(relative in %
)
Correl. coeff.
Lerwick 287 3834.2 -523.9 (-13.7%) 1105.7 (28.8%) 0.916
Toravere 1247 6058.5 -1398.0 (-23.1%) 1709.6 (28.2%) 0.943
Lindenberg 522 5222.9 -433.1 (-8.3%) 922.0 (17.7%) 0.949
Cabauw 1526 4636.0 96.1 (2.1%) 878.2 (18.9%) 0.937
Camborne 497 4929.1 209.9 (4.3%) 957.1 (19.4%) 0.937
Palaiseau 1646 5007.5 -69.4 (-1.4%) 887.8 (17.7%) 0.938
Payerne 1099 6123.7 -74.5 (-1.2%) 901.2 (14.7%) 0.938
Carpentras 2697 6602.8 -274.2 (-4.2%) 831.4 (12.6%) 0.954
Cener 808 5991.6 -330.0 (-5.5%) 918.0 (15.3%) 0.949
Sede Boqer 2651 6665.7 -925.7 (-13.9%) 1373.5 (20.6%) 0.893
Tamanrasset 2968 6761.0 345.0 (5.1%) 1310.7 (19.4%) 0.858
Brasilia 1313 5675.8 172.0 (3.0%) 1076.4 (19.0%) 0.886
Sao Martinho da Serra 978 6564.4 -310.3 (-4.7%) 1189.1 (18.1%) 0.901
De Aar 328 8423.7 -726.8 (-8.6%) 1057.1 (12.5%) 0.953

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CAMS Radiation -- DNI Quality assessment results vs. the BSRN stations
HOURLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias
(Wh/m2)
(relative in %
)
RMSE
(Wh/m2)
(relative in %
)
Correl. coeff.
Lerwick 4895 306.8 -38.8 (-12.6%) 160.4 (52.3%) 0.789
Toravere 20290 451.8 -106.2 (-23.5%) 190.6 (42.2%) 0.841
Lindenberg 7639 399.6 -30.0 (-7.5%) 134.6 (33.7%) 0.876
Cabauw 22350 361.8 15.6 (4.3%) 134.5 (37.2%) 0.858
Camborne 7404 376.0 24.7 (6.6%) 141.2 (37.6%) 0.865
Palaiseau 23269 394.1 -0.5 (-0.1%) 130.4 (33.1%) 0.879
Payerne 15975 484.7 -1.2 (-0.2%) 136.6 (28.2%) 0.887
Carpentras 33326 551.7 -21.9 (-4.0%) 115.7 (21.0%) 0.919
Cener 10769 484.1 -25.2 (-5.2%) 134.2 (27.7%) 0.902
Sede Boqer 29349 606.5 -84.1 (-13.9%) 169.5 (27.9%) 0.870
Tamanrasset 36450 584.2 34.7 (5.9%) 157.6 (27.0%) 0.881
Brasilia 16508 483.1 14.9 (3.1%) 175.8 (36.4%) 0.830
Sao Martinho da Serra 12441 543.6 -26.5 (-4.9%) 176.3 (32.4%) 0.849
De Aar 3907 716.4 -59.6 (-8.3%) 135.9 (19.0%) 0.922

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CAMS Radiation -- DNI Quality assessment results vs. the BSRN stations
15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias
(Wh/m2)
(relative in %
)
RMSE
(Wh/m2)
(relative in %
)
Correl. coeff.
Lerwick 21073 74.0 -8.2 (-11.1%) 50.3 (68.0%) 0.709
Toravere 86914 114.4 -26.2 (-22.9%) 57.1 (49.9%) 0.770
Lindenberg 31104 99.8 -6.6 (-6.6%) 43.0 (43.1%) 0.812
Cabauw 91127 90.6 5.5 (6.1%) 43.9 (48.4%) 0.785
Camborne 30065 94.2 7.7 (8.2%) 45.6 (48.4%) 0.797
Palaiseau 94996 98.4 1.0 (1.0%) 42.2 (42.9%) 0.817
Payerne 67551 120.8 1.1 (0.9%) 44.4 (36.8%) 0.827
Carpentras 132851 139.7 -4.9 (-3.5%) 36.5 (26.1%) 0.873
Cener 43047 123.2 -5.6 (-4.6%) 43.0 (34.9%) 0.845
Sede Boqer 118491 155.3 -22.0 (-14.2%) 48.2 (31.0%) 0.820
Tamanrasset 144303 151.1 9.8 (6.5%) 46.4 (30.7%) 0.833
Brasilia 65444 125.0 4.8 (3.9%) 57.0 (45.6%) 0.736
Sao Martinho da Serra 48516 141.4 -6.2 (-4.4%) 54.4 (38.5%) 0.773
De Aar 15179 187.0 -15.8 (-8.4%) 50.4 (27.0%) 0.801

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