The hydrological year 2017 closes with a deficit of 15%

drought reservoirs

Spain suffers from such a severe drought that not even in the last decade have there been such low values ​​for rainfall and reservoir levels. This year's water deficit closes with 15% less than the previous year. It has been considered a very dry period in all of Spain, being the eighth year with the least rainfall since 1981.

As we know, the hydrological cycle closes in September and according to weather predictions this autumn will be quite hot and dry, with little rainfall. What can be done in such a drought situation?

Dry hydrological year

hydrological deficit

This period began in October 2016 with a month in which rainfall was below normal values, and continued with a wet November. At the end of November, with the rains that occurred, the rainfall data returned to its normal state. However, these data were due to episodes of heavy rainfall and not spread throughout the month.

But then the figures fell, and despite the intense rainfall that was recorded in the southeast of the peninsula and in the Balearic Islands during the months of December and January, January was also a dry month and the accumulated rainfall in the hydrological year continued to decrease. up to 18% lower than normal value in the second half of January.

The months of February and March remained more or less stable, close to normal data, but after these months, the spring was very dry. The hydrological deficit below normal value after spring was 13%.

This summer, there have been precipitation values 7% above normal. But these values ​​have not compensated for the accumulated hydrological deficit, reaching September to be 12%.

Water deficit and drought

The hydrological year -which runs from October 1 to September 30- has closed with an average of 551 liters per square meter for the whole of Spain, which represents a 15% deficit with respect to the normal value (648 liters per square meter).

This makes this year very dry. In addition, the demand for water continues to be the same or more, so there is less and less water available.

Water is a very valuable resource and we have to learn to take care of it together, since we do not know when it will rain again.

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