Chapter 6

About the Data

6.1 SIAR

The Agroclimatic Information System for Irrigation (SIAR) (MARM 2011) is a free-download database operating since 1999, covering the majority of the irrigated area of Spain. This network belongs to the Ministry of Agriculture, Food and Environment of Spain, as a tool to predict and study meteorological variables for agriculture. SIAR is composed of twelve regional centers and a national center, aiming to centralize and depurate measurements from the stations of the network. Figure 6.1 displays the stations over an altitude map. Some stations from the complete network have been omitted, due to difficulties accessing their coordinates or to incomplete or spurious data series1.

Figure 6.1

Meteorological stations ...

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