Expert gives reason for hot summer

Writer: Wang Jingli  |  Editor: Zhang Chanwen  |  From: Shenzhen Daily  |  Updated: 2022-09-16

Shenzhen had recorded 11 high temperature days this year as of Tuesday, breaking the record for the number of hot days in a year since 1953, according to information released by Shenzhen Meteorological Observatory.

Experts said scorching days might continue until early October.

The number of high temperature days refers to the number of days with the daily highest temperatures reaching or exceeding 35 degrees Celsius.

Shenzhen Meteorological Observatory recorded that between 2010 and 2020, only the number of high temperature days in 2013, 2014, 2015, 2017 and 2020 reached or surpassed five days.

The direct cause of this year’s high temperatures is the large and intense subtropical high pressure in the western Pacific Ocean, Chen Shenpeng, senior engineer from the observatory, told Shenzhen Evening News.

Under the control of subtropical high pressure, the whole southern China region is controlled by the sinking air flow. The sky is clear and cloudless, while the heating near the ground is strong.

The hot air, which is stuck on the ground, can neither be blown away nor dispersed, causing a wide range of sustained high temperature weather.

The city’s recent high temperature weather is mainly caused by the sinking air flow outside Typhoon Muifa. The deeper reason behind it, however, is global warming, Chen suggested.

Chen said that Shenzhen’s hot and dry weather will continue until early October. There are still days before the city enters autumn as data showed that the season starts Nov. 8 on average.

After the white dew solar term, there is less moisture in the air. Residents are thus advised to eat more pears to moisturize and nourish their lungs, suppress cough and get rid of phlegm.