Validation

We used data from more than 50 AEMET radiometric stations.

Data provided on this website (representing the long term average data) and AEMET measured data (data from a number of specific years) are compared.

 

Monthly graphs show the following information:

  • The monthly value of the map provided (red line).
  • The daily values measured on land ( Box and Whisker graphics)
  • The values between the 25 and 75 percentile are shown as a blue box, divided by the median. This box gives an idea of the variability of the most likely value of long-term solar radiation at the site.
  • Values outside these percentiles and until 1 and 99 percentile are represented by a dotted blue line from the ends of the box.
  • Furthest values from the median measured data values are considered outliers, and they are represented as crosses.

  

MAINLAND SPAIN AND BALEARIC ISLANDS STATIONS LONGITUDE LATITUDE ALT
A CORUÑA                        -8.42 43.37 58
A CORUÑA (ALVEDRO)                -8.37 43.31 98
ALBACETE (OBS.)      -1.86 39.00 674
ALMERíA (AEROPUERTO) -2.36 36.85 21
BADAJOZ (UNIVERSIDAD)          -7.01 38.89 175
BARCELONA (AEROPUERTO)                     2.07 41.29 4
BILBAO (AEROPUERTO)               -2.91 43.30 42
CÁCERES                        -6.34 39.47 394
CÁDIZ (OBS.)                     -6.26 36.50 2
CIUDAD REAL                    -3.92 38.99 628
CORDOBA (AEROPUERTO)             -4.85 37.84 90
CORON (VILANOVA)                           -8.80 42.58 20
GRANADA (BASE AREA)             -3.63 37.14 690
HUELVA (RONDA ESTE)             -6.91 37.28 19
LEÓN (VIRGEN DEL CAMINO)          -5.65 42.59 916
LOGROÑO (AGONCILLO) -2.33 42.45 353
LLEIDA 0.59 41.63 192
MADRID (C. UNIVERSITARIA)       -3.72 40.45 664
MÁLAGA (CENTRO METEOROLOGICO) -4.48 36.72 60
MURCIA -1.17 38.00 61
OVIEDO -5.87 43.35 336
PALMA DE MALLORCA (CMT)                  2.62 39.55 3
PALMA DE MALLORCA (SON SAN JUAN)          2.74 39.56 8
SALAMANCA (MATACAN)              -5.50 40.96 790
SAN SEBASTIAN (IGUELDO)           -2.04 43.31 251
SANTANDER (CMT)                 -3.80 43.49 52
SORIA -2.48 41.77 1082
TOLEDO -4.05 39.88 515
TORTOSA 0.49 40.82 44
VALLADOLID -4.75 41.64 735
VITORIA (FORONDA)    -2.73 42.87 513
ZARAGOZA (BASE AEREA) -1.07 41.68 251
CANARY ISLANDS STATIONS LONGITUDE LATITUDE ALT
LANZAROTE (AEROPUERTO) -13.6 28.95 14
TENERIFE NORTE -16.33 28.48 632
STA.CRUZ DE TENERIFE -16.25 28.46 35
FUERTEVENTURA (AEROPUERTO) -13.86 28.44 25
TENERIFE SUR -16.56 28.05 64
GRAN CANARIA (AEROPUERTO) -15.39 27.92 24
SAN BARTOLOME TIRAJANA (CIT) -15.58 27.76 45

 

Spatial extrapolation of the results in the 25 and 75 percentile is carried out from validation in these specific points. Thus, it can be visualized the expected value of long-term solar radiation in a particular location and the most probable values range that a month can take for a specific year (between the 25 and 75 percentile):

  • If  location has a mean value for a particular month bigger than P75, it could be considered a HIGH month respect the average;
  • If location has a mean value for a particular month less than P25, it could be considered a LOW month from the average.