What is the high temperature?
The high temperature is above 35 degrees.
High temperature means higher temperature. The specific values referred to are different in different situations. For example, in some technologies, it refers to several thousand degrees Celsius or above; in Chinese meteorology, when the daily maximum temperature reaches above 35 degrees Celsius, it is called high temperature weather. High temperature weather will have serious impacts on human health, transportation, water use, electricity consumption and other aspects. High temperature warning signals are generally divided into three levels: yellow, orange, and red.
The formation of high temperatures is often inseparable from specific weather systems, the most typical of which is the legendary subtropical high pressure. Downdrafts prevail in areas controlled by subtropical high pressure. On the one hand, the sinking air will compress and increase the temperature; on the other hand, it will not form clouds and cause rain. Therefore, sunny and high-temperature weather with few clouds prevails in the high pressure.
In addition to natural factors, the formation of high temperature weather is also affected by human activities. In the climate context of global warming caused by increased human emissions of greenhouse gases, the frequency of extreme high temperature heat waves has also increased.
High temperature conditions abroad
On August 11, 2021, the Province of Siracusa in Sicily, Italy recorded a high temperature of 48.8 degrees Celsius. The temperature was determined by the Sicily Region Agricultural Meteorological Information Service measured. Italian meteorological experts said that if further verified to be true, this number may break the record for the highest temperature ever recorded in Europe.
The previous highest temperature record in Europe was 48 degrees Celsius measured in Athens, Greece, on July 10, 1977. Affected by the subtropical high pressure, most parts of Italy are experiencing the hottest week of the year. The meteorological department predicts that this round of high temperature weather may reach its peak on the 13th. By then, 15 major cities in the country from south to north, including Rome, Florence, Bologna, Bolzano, and Palermo, will be in a high temperature red warning state.
On July 17, 2023, local time, the southwestern United States still had a "high fever." Residents of Phoenix, the capital of Arizona, complained that going out during the day felt like stepping into an oven. The local fever reached 43 for 18 consecutive days. Celsius or above, tying the local record set in June 1974. The temperature in Death Valley National Park in California reached 53.3℃ on the 16th.
Reference for the above content: Baidu Encyclopedia-High Temperature