The flood scene in the mouth reservoir. Zhang yan
On september 12, china's new network, ningbo (journalist limbo), reported that on september 12, zhejiang province, the office of the anti-drought headquarters in ningbo city, was affected by typhoon chandu, which is expected to have heavy rains in the city from 13 to 14 september, with heavy local rains. Process rainfall ranges from 200 mm to 350 mm and individual 600 mm or more (in the san ming region)。
At 1700 hours this year, the centre of typhoon shindu, 14th, is on the surface of the south-east sea, about 430 km south of the zhejiang ishiyama. It is expected that chandu will move northwards at a rate of about 25 kilometres per hour, landing on the coast along iwayama from 13 a. M. To noon, or entering hangzhou bay off the coast of zhejiangzhou。
Between 0800 and 1400 hours on 11 september, the average rainfall in ningbo city was 14 mm, with one township (street) for a total of 90 km2 in excess of 100 mm, and 12 townships (streets) for a total of 495 km2 in excess of 50 mm。
Currently, a single stop has a maximum of 131 mm for the zen forest and a maximum of 113 mm for the hourly slide. The “train effect” of typhoons is known to result in strong single-point precipitation with maximum hourly rainfall ranging from 80 mm to 120 mm。
At present, the main tide station in ningbo city is not over-guarded or under-guaranteed. It is expected that there will be a visible typhoon surge along the ningbo coast from 13 to 15 may, with the largest storm surge increasing from 80 to 160 centimetres, with the worst impact occurring in the afternoon of 13 afternoons, with the coastal area of the town and the port of the river reaching the red alert level, the northern shore of the north lundun, the eastern shore of ishiyama county reaching the orange alert level, and the southern shore of the north lundun, the canton, phuang, ishiyama and ning coast reaching the yellow alert level。
The flood scene in the mouth reservoir. Zhang yan
At present, a class 8 easterly wind of 17. 4 m/s has surfaced in pyramid. From 12 to 14 december, there will be major winds ranging from class 13 to class 15 from the south to the north of the east sea, with the centre passing through a nearby sea surface ranging from class 15 to class 16。
At 1400 hours on 12 december, no large or medium-sized reservoirs in ningbo city had exceeded the limit. Two of the first and second (important) reservoirs overstretched. The city's 32 large- and medium-sized reservoirs hold 776 million cubic metres, or 75. 0 per cent of the volume of controlled water。
At present, the main river control station in ningbo city has no high-security or guaranteed level of water; the zhejiang province has no high-security and 18 ningbo city-level river routes are under surveillance. (concluded)
