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People urged to conserve water as reservoirs running low

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People urged to conserve water as reservoirs running low




Somkiat Prajamwong


The Office of Natural Water Resources (ONWR) is calling on people to conserve water and refrain from growing off-season rice because the country’s 13 large dams are less than 30 per cent full.


“Four dams in the North, four in the Northeast, two in East, one in the Central region and two in the West are at less than 30 per cent of their capacity,” ONWR secretary-general Somkiat Prajamwong said.


“The country’s 141,489 dams and reservoirs have 42.9 billion cubic metres of water, or are approximately 52 per cent full,” he added.


The office estimates that when the dry season starts in November, the four dams that supply water to the Chao Phraya Basin, namely Bhumibol, Sirikit, Kwai Noi Bumrung Dan and Pasak Jolasid, will only have 6.27 billion cubic metres of water, which is not enough to irrigate off-season rice in the area.


“ONWR will have to carefully manage the use of water in the next growing seasons in case next year’s dry spell lasts longer than expected,” he said.


“We have calculated water for domestic consumption at 18 million cubic metres daily and urge people to conserve water so it does not exceed this amount.”


Source: https://www.nationthailand.com/news/30395383



-- © Copyright The Nation Thailand 2020-09-30
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16 hours ago, Misterwhisper said:

And once again all I can do is shake my head in utter disbelief.


It's been raining cats and dogs like clockwork for at least the past three weeks. And just a few weeks ago, large swathes of Thailand were suffering heavy flooding.


And now all of a sudden the largest reservoirs are down to 30% capacity?


Something is going seriously wrong with water management in this country.

Can't rely on rainfall alone to fill ponds, lakes and reservoirs. In Isaan, the rainfall is just 60% of the seasonal average (last 30 years). However the rainfall in 2020 is 80% compared to the last 5 years. So the trend, certainly in NE Thailand, is for less rain.


A pond could lose up to one cm of water, per 24 hours, due to evaporation in hot, dry weather, and in a year around 90 cm. Now if there is only 80cm of rain falling and 90cm is being evaporated, there can be a problem.


To researchers of world weather systems, these statements world seem to be acceptable.

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Really?  Here in Lamphun province where I live the rivers, lakes, ponds, and catchment basins are full.  It's much much better than last year this time.  Didn't realize that the big reservoirs are still that low.  Hopefully we get a couple more tropical depressions rolling through before the end of the rain season.  But at a local level we are definitely better off than last year. 

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The Eastern seaboard area has not really had much rain over the past few years, certainly a lot less than it should be normally.

Mabprachan reservoir is very low for this time of the year and with the end of the rainy season nigh, it is not going to get much better.

One has to wonder what it would be like if there had been the normal flow of tourists.

There has been water rationing all year in the area and next year looks like it will be a lot worse.

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Just west of Udon the run off from the rain has caused the local canal to rise once this wet season and that was Monday this week

Normally all the low lying paddies would have flooded a couple of times during the wet season because said canal over flows

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