Qiantang River's annual tide will be postponed!The climax may appear on this day

At 10 am on September 11, the Zhejiang Oceanic Forecast Monitoring Center released news of storms and waves. Affected by Typhoon Plum (strong typhoon level) No. 12 this year, it is expected that from September 13th to 15th, a typhoon storm process will occur along the coast of our province. The biggest appearance is from September 14th to 15th, and there will be 8 meters to 10 meters of mad waves to mad waves in the waters of our province.

On September 13th, August 18th of the lunar calendar is the tide of the Qiantang River's tide. However, because of the influence of the typhoon "plum blossom" on Zhejiang in the next few days, this year's tide will not appear on this day, but it will be postponed until September 15, which is staged again on August 20th of the lunar calendar.

Yesterday afternoon, Qiantang River Basin Center made the latest predictions on the trend of the annual tide of the Qiantang River under the influence of the typhoon. Ren Huoliang, a professor -level senior in the Basin Center, said that according to the current typhoon prediction of the meteorological department, the storm and storm trend it brought by it will affect the Hangzhou Bay waters from the afternoon of September 14, and then affect the Qiantang River estuary. The biggest is the morning tide of September 15 (August 20th of the lunar calendar).

Yesterday afternoon, the tide of the Xiaoshan Beauty Dam was a little bit up to the pond, but the degree of thrill was far less than that of previous years. Because of the continuous drought in the Qiantang River Basin this year, the reduction of the upstream water has caused the riverbed to rise compared with previous years, and then the water volume decreased when the downstream tide was reduced, and the height of the surging tide was reduced.

However, in fact, due to the influence of the typhoon in the past two days, the tide is greater than expected. Taking the Hangzhou Duancang Qianwen Station as an example, yesterday Hangzhou Hydrological Center monitored 1 meter high, and four stars were observed. In the same period of the same period, the monitoring high in the same period was generally only 0.8 meters. The tide increased by 20 cm.

For the hydrological observation point of Haining Salt officials, Ren Huoliang has further data analysis. "According to the latest forecast, September 15th (August 20th of the lunar calendar) will reach 6.3 meters or more in the early tide of salt officials, and this point is alert The tide position is 6.2 meters, and the climax will be the highest value of the water level to the largest value of the year. "The climax brought by the tide reaches the maximum value of the year, which means that the tide of the day may be the largest throughout the year.

Ren Huoliang said: "According to the prediction, the impact of typhoons will bring about the tide on the afternoon of September 14, and the morning and evening tide on September 15th, bringing about 30 cm high height increase. Help, the flow velocity will be faster. Especially the tide in the morning on September 15 will exceed the 18th lunar calendar. Take the salt official as an example. The early morning tide in the lunar calendar is over 1.8 meters. " There is inevitable wind and rain. The experience of watching the tide on the river is not as good as the overall sunny day.

Reminder

During the Da Chao flood, the Quanjiang section of the Qiantang River area can be considerable. From September 13th to 15th, the tide water is relatively large, especially in the lunar calendar August 20 (September 15). Seven grids, Xiasha pig head dams, and West Lake Scenic Area Jiuxi may be up to the ponds. In order to avoid risks such as wet body and personnel collision after the tide water ponds, please try to choose a relatively safe area along the banks along the river and experience the charm of Qiantang's tide.

Source 丨 Qianjiang Evening News

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