Venice, a water city, is seriously short of water. What is the specific reason?

Venice, a water city, is seriously short of water. The main reason may be the influence of high pressure and precipitation this year.

Venice, a famous water city, is located in the northeast of Italy. Venice is made up of many islands, with more than 65,438+000 waterways. This is a very romantic city and worth visiting. Many tourists come here every year to enjoy the scenery on the waterway by boat. However, this city named after water has been seriously short of water recently. There is a very rare low tide in Venice, which causes the water level of local rivers to drop. The water level in Venice is also 50 cm below sea level. Many rivers have dried up, many riverbeds have been exposed in large areas, and many ships have run aground because of silt, which has had a great impact on the life of Venetian residents.

Experts first think that the drop of water level is caused by strong high pressure. Air pressure refers to the atmospheric pressure acting on a unit area, which varies with height and temperature. Because whenever there is a storm, seawater will invade the Adriatic Sea, which means seawater will flow into the lake again. If there is a strong high pressure at this time, the pressure at sea level will increase, because the pressure is not only related to air, but also affects the water flow, because the water level at sea level will gradually decrease under high pressure, and then the water level in the lagoon will also decrease. Another reason is that there is less precipitation in Venice this year. The overall precipitation in Italy is less this year, especially in Venice, which is much less than in previous years. Moreover, February is the month with the least annual precipitation in Venice, and the precipitation in Venice is only 3.4 mm, which is very small, which leads to insufficient river recharge and the decline of river water level. Tides also affect the water level in Venice, because it is a low tide period, so the water level is relatively low.

Venice is not only seriously short of water, but sometimes it is suddenly hit by floods due to the influence of heavy rains and tides. These extreme climate changes are inseparable from human activities. We should call on the whole world to protect the marine environment, start with small things around us, reduce carbon emissions, advocate low-carbon travel and take transportation. We should also reduce the use of plastic products. We should not throw them away after use, but recycle them, especially disposable plastic products, such as plastic bottles, plastic bags and plastic straws, in order to reduce the plastic waste discharged into the ocean and make contributions to the marine environment. When we go to the seaside to play, we should take our own garbage with us when we leave, and try our best to help clean up the garbage on the ground when we see it.