Statistics and Early Warning Analysis of High Temperature Weather in Inner Mongolia in 2022
Based on routine observation data and hourly automatic observation data of 119 national stations in Inner Mongolia Autonomous Region in 2022,the high temperature situation with daily maximum temperature ≥ 35℃ and the corresponding temperature and pressure field were analyzed,and the occurrences of high-temperature warning signals of different levels at each station were also summarized.The results indicated that:(1)A total of 399 occurrences of high temperature weather with daily maximum temperature ≥ 35℃ were recorded at 68 national stations,mainly distributed in Hohhot and its western regions,and concentrated in the western region for two consecutive years.High temperature weather occurred from May to September,with the highest occurrence in June.The daily maximum temperature mostly occurred between 15:00 and 17:00,showing a unimodal pattern,with the peak at 17:00.There were three regional high temperature processes throughout the year,mainly occurring in June and in the western region.High temperature weather with daily maximum temperature above 40.0 ℃ occurred in Guaizihu and Ejina Banner of Alxa League for 7 and 5 times,respectively,and the maximum temperature exceeded 40.0 ℃ for three consecutive days from June 15th to 17th.Extreme high temperature weather events occurred at eight stations in the western region.(2)The ridge of high pressure at 500 hPa,the warm center or warm temperature ridge area at 850 hPa,and the hot low pressure on the ground were conducive to the occurrence of high temperature weather.(3)There were very fewdays that meet the criteria for the regional high temperature yellow warning signal.If counted by station,there were 57 times at 23 stations that met the yellow warning signal standard,119 times at 27 stations that met the orange warning signal standard,and 13 times at 3 stations met the red warning signal standard.
Temporal and spatial distributionTemperature and pressure field configurationHigh temperature warning signal standard
万方数据
维普
