Torrential rains and flooding in Japan during the summer of 2014

Juan G. Torrential rains and flooding in Japan during the summer of 2014.

Water and Irrigation. .: Vol 5, No. 1: 31-32, September, 2014, Spain.

During summer 2014, in the Pacific has occurred great cyclonic activity with a total of 14 shocks between tropical depressions, tropical storms and typhoons from them caused damage in Japan a tropical depression in Hiroshima, a tropical depression on the island of Hokkaido, Nachri severe tropical storm and typhoon Halong and Neoguri. Tropical depression of Hiroshima, which gave little meteorological value was the most damaging to Japan, as it rained fiercely with a value of 200mm in 3 hours and then subsequently continued raining for time intervals in a mountainous zone that was on soaked triggering landslides and flooding areas, causing a total of 70 dead and 18 missing persons and property loss.Just two weeks have elapsed in the autumn and again Japan has been hit by two new typhoon the Phanfone and the Vongfong.

A total of 70 people died and 18 remain missing as a result of torrential rains throughout the morning of August 20, 2014 over the city of Hiroshima in the west of Japan and local authorities caught off guard. In just three hours of rain that fell 200mm equivalent to that usually reflected in a whole month of August, in this region that is mountainous recorded 243 millimeters in 24 hours, sparking violent floods and landslides. According to authorities in Tokyo.

When the authorities began to react and there had been several cases of people who were buried alive or swept away by flood canals and rivers. Local authorities came to advise the evacuation of about 65,000 people some 26,000 households in mountainous areas most affected by rainfall. 500 soldiers were deployed in the area and was later joined by more than 200 police officers from the city of Osaka and other nearby provinces. About 3,000 firefighters, police and members of the army participated in the rescue efforts in the rubble and tons of mud, although their work was complicated by the risk of landslides and mudslides caused by new rainfall, many homes were damaged or destroyed, as reported by the state broadcaster NHK.

Japanese television reported on continuously while the rains showed spectacular images of collapsed houses by landslides and mud buried in rubble dumps or flood, flooded streets and cars, razed agricultural land, the water ran down the street like a river. This tropical depression that was given little value was the most damaging to Japan, as it rained fiercely. The accumulated precipitation for Japan in 2014 until August 1564 is mm and 328 mm for this month, which compared to the annual average of 1700 mm and the monthly average for August of 193mm, indicate that this is a very wet year and the average annual rainfall is going to be greater than 2200mm

The high number of casualties and economic losses in Hiroshima is due to the record rainfall in the area and the type of terrain which easily collapses when saturated with water. The city suffered in 1999 the effect of torrential rains, at that time its caused the death of 20 people.

From January to September 25, 2014, in the Pacific’ve got a great cyclonic activity with a total of 26 shocks between tropical depressions, tropical storms and typhoons from them caused damage to Japan, tropical depression in Hiroshima, tropical depression in the island of Hokkaido in northern Japan, severe tropical storm Nachri, Halong and Neoguri typhoons.

On September 11, local authorities in Hokkaido, northern Japan, triggered the evacuation recommendation for more than 900,000 residents of 11 towns, including the capital of the region, Sapporo and warned people to act with caution by torrential rains and potential flooding following a tropical depression. During the morning its came to drop to 110 millimeters of rain in one hour in the city of Tomakomai as Japanese Agency. Japan Meteorological Agency (JMA) .Also flights were suspended Thursday morning during bad weather and about 350 trains were canceled.

Arriving in Japan in Shikoku Region on August 10, Typhoon Halong caused economic losses and casualties, nine people died and 70 were injured, one million people were evacuated during the storm. Severe Tropical Storm Nachri to enter the in region of Shikoku, caused torrential rains and one person was killed. The typhoon Neoguri weakened, the July 10 affecting southern Japan

The effect of torrential rains in the affected area is Hiroshima, show that the drainage capacity of the region is unable to cope with the volumes of water downed and it is necessary to design new drainage systems and network sewage in the region according to the characteristics of the phenomena occurring in which to evacuate 67 mm half sheet of water in one hourthis region has been affected in the past by heavy rains so it is necessary to give a suitable solution to the problem, it is also advisable to take into consideration how to construct in mountainous areas, since the risk of landslides is very common.

Just two weeks have elapsed in the autumn and again Japan has been hit by two new typhoon the Phanfone and the Vongfong. Japanese authorities have recommended the evacuation of more than two million people in several Japanese provinces by the risk of flooding and landslides over the Phanfone powerful typhoon, which caused four deaths, has left five missing, 50 injured and nearly 57,000 households no light in 12 provinces of Japan, 10/07/2014, according to public broadcaster NHK. The Vongfong typhoon made landfall on the island of Kyushu, the second most populous in Japan, according to the JMA, which declared the alert for torrential rains, floods and landslides. Typhoon whips tackles more than 15 provinces in southern and central country. Accidents caused by winds up to 108 mph, heavy rains and waves of eight meters have left a balance of two dead, one missing and 94 injured, state television reported Monday NHK.13 / 10/2014.

http://www.aguayriego.com/2014/09/lluvias-torrenciales-e-inundaciones-en-el-japon-durante-el-verano-de-2014/

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