The weather in Jinjiang is February 18.
The strongest typhoon "Moranti"No. 14 "Moranti" is the strongest typhoon registered in Chinese mainland in recent years and the strongest typhoon registered in southern Fujian since 1949. At the peak, its compressive strength reached 17, and the standard air pressure near the management center was as low as 883 hectopascals, setting a new global climate record.
"Moranti" landed in the coastal area of Xiamen on the morning of June 5438+05, causing damage mainly in Chaoshan area where the population of Fujian Province is relatively concentrated, causing flooding in big cities, collapse of houses, destruction of infrastructure construction and interruption of road communication of hydropower projects. In particular, Xiamen's energy supply in the same city is basically hemiplegic, with water cut off on all sides, and Quanzhou and Zhangzhou have large-scale power cuts, resulting in extremely serious property losses.
"Moranti" is the strongest typhoon that landed in Chinese mainland in recent years, and it is also the strongest typhoon that landed in southern Fujian since 1949. At its peak, its compressive strength reached 17 (70 m/s), and the standard air pressure near the management center was as low as 883 hectopascals, setting a new global climate record.
In Quanzhou, the landing site, the wind speed reached 17 (63.7 m/s). Looking around, 650,000 green trees were cut off or uprooted, and the curtain wall glass was scraped off.
The stormy waves of the typhoon caused some large and medium-sized ships to break their anchor chains, and the sea containers were blown away, resulting in serious losses of fishing rafts; The strong typhoon caused a large water increase of 2 meters, the storm surge in the southeast coast exceeded the orange warning, and the bluestone slab suffered serious erosion. Extremely heavy rainfall swept across our province, and there were heavy rains in 74 counties (cities, districts). Among them, 50 counties (cities, districts) have rainfall exceeding 100mm, and 28 counties (cities, districts) have rainfall exceeding 200 mm. The top five are Xiapu 508mm, Anxi 507mm, Yongchun 462mm, Fu 'an 427mm and Zhejiang. The compressive strength of precipitation is huge, and the rainfall is 1 hour, Anxi 123mm, Lianjiang165,438+0mm, Haicang 102mm, Fuan-230mm and Anxi-2 19mm.
The precipitation caused 20 super-warning floods and 4 super-guaranteed floods in the main streams of Jinjiang, Saijiang and Mulanxi, and the key tributaries of Minjiang and Jiulong rivers. Shanmei Reservoir in Jinjiang was flooded once in 75 years, and the inflow flood was 4087 cubic meters per second. Urban waterlogging in Quanzhou is more serious, and urban waterlogging also occurs in Xiamen, Putian, Fujian and Fuzhou to varying degrees.
No. 14 super typhoon "Moranti" has subsided, andNo. 16 super typhoon "Marka" is gradually approaching Fujian Province, and the harm will be presented. Fujian Province stipulates that the province should pay close attention to the typhoon dynamics and strictly supervise the navigation of wooden boats and fishing rafts to ensure water safety.
The affected people have been properly resolved, and post-disaster reconstruction and recovery and reconstruction have progressed steadily. The daily life discipline of production and manufacturing in the disaster-stricken areas has basically recovered, and the social order is stable.
The destructive power of a strong typhoon is very great, and the damage it can cause includes the following three points: 1. Gale: Hurricane-level wind is enough to damage or even destroy buildings, bridges and vehicles on land, especially in areas where buildings are not reinforced, which will cause more damage. Strong winds will also blow debris into the air, making the outdoor environment very dangerous.
2. Heavy rain: Typhoons will cause continuous downpours, especially in mountainous areas, and may cause river floods, mudslides and landslides.
3. Storm surge: Due to the strong wind and pressure of typhoon, the water surface rises, and coastal areas may be submerged. If it is suitable for astronomical climax, the damage is even greater. Storm surge is often the most deadly of all kinds of typhoon damage (note: storm surge is a continuous wave caused by the low pressure and strong wind of the storm, and tsunami is a short-term gradual wave generated by the submarine earthquake, which rushes to the land coast.
How bad is the typhoon? Typhoon landing caused some indirect losses, including:
1. Disease: The accumulated water after the typhoon and the destruction of sewers may cause an epidemic.
2. Damage to infrastructure system: Typhoon may damage roads and power transmission facilities. And hinder the rescue work.
Agriculture: Wind and rain may destroy fish and agricultural products, leading to food shortage.
4. Salt wind: The salt in seawater is brought to the land with the huge waves caused by typhoon, which may cause crops to wither when attached to the leaves of crops, and may lead to electric leakage when attached to cables, which may strengthen the intensity of monsoon cold current or continental anticyclone: when a typhoon encounters a fairly strong continental cold current, the pressure gradient between them increases, and the latter will absorb the energy of typhoon and make the cold current stronger. It can be said to be a devastating natural disaster: storms and diseases are everywhere.
What are the benefits of typhoons? In addition to causing disasters and losses, typhoons have some benefits, as follows:
1, cooling and relieving summer heat, but also bring a lot of fresh water resources.
2. Alleviate drought, such as summer drought in the middle and lower reaches of the Yangtze River.
3. The study of typhoon is beneficial to the study of atmospheric movement and can provide us with important climate and meteorological information.
4. Typhoon advancing from low latitude to high latitude can adjust the global heat balance and play an important role in changing climate.
The strong wind brought by typhoon will provide a research direction for us to actively use wind energy in the future, which is of great significance to the study of new energy.
6. Typhoon can disperse smog, purify dust particles in the air and bring lightning.
7. Killing harmful substances in the air and producing ozone are of great significance to improving air quality.
Typhoon is a masterpiece of nature, and no one can control it (including its generation, trend and power). It can only be predicted at present.