Tuesday, July 26, 2016

Abnormal water situation in large areas – Aftonbladet

Nature. the weather gods do holidaymakers happy right now, but there is a downside.

In an increasingly large part of Sweden’s groundwater levels below normal. The worst is on Öland and Gotland.

The map of groundwater situation for July is alarming. The water is as before “much below normal” on Öland, Gotland and along with large parts of the east coast of Sweden. The new compared to June is that the area of ​​a level “below normal” has grown considerably.

– We have had remarkably low rainfall during the winter in recent years and even less in winter . Therefore, we get this picture to a large part of Sweden, except in the north and in the south where it rained more, we get levels below normal, said state geologist Nils Ohlanders at the Geological Survey of Sweden (SGU).

Water source evaporates

Gotland goes VA manager of needles – in high summer heat evaporates the water in the island’s main water and the water level drops now several centimeters of the week.

– Right now, it looks like that the water will run out before the October, say VA director Jonas Aaw said.

Completely out it does not, but according to a water court, it will be forbidden to draw water in Tingstäde swamp in northern Gotland below a certain level. He hopes for a new water that provides temporary permit to reduce the level further. Otherwise, the alternative water rationing.

– Then it is the crisis for real, says Jonas Aaw.

But islanders have already suffered irrigation ban on large parts of the island and the reduced pressure in the water mains in Visby and Ljugarn. At the same time they are asked constantly to be afraid of the drops.

– This has produced results. They are really good, islanders, and it seems that even the tourists are there. But it is not enough.

need water preparation

On Oland’s situation even more critical, and there is continuing water transport by truck from the mainland, while a new water from the mainland to save the situation somewhat.

the provincial government is prepared for emergency water, if the water would completely their of Öland farmers.

– In this case, we put out flexi tanks, which can be compared with the large bag-in-box filled with water where farmers can come and fetch water. But so far we have not received any alarming reports from agriculture, says Karin Bergman, Director of Development at the County Administrative Board in Kalmar.

FACTS

groundwater

Precipitation during the cold seasons are crucial to the water table, because the rain that falls when it is warmer either evaporates or is absorbed by plants.

when the rainfall seeping down through the ground filled the earth void and bedrock fractures of groundwater. Since the water has been filtered through the soil layers, it is clean.

Several drylands autumns and winters in a row is the cause of the low water levels in large parts of Sweden right now.

geological survey of Sweden (SGU) publishes each month a map of groundwater situation in Sweden. The latest, for the month of July, shows that groundwater levels remain much below normal on Öland, Gotland and along much of the Swedish east coast. Considerably larger parts of the country now has a water table that is below normal compared to June.

Source: SMHI and SGU

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