Analysis of Characteristics of the Lower Atmosphere at Jiulong Station Using Encryption Sounding Observation Data

In this paper,based on encryption sounding data of years of continuous observation at the Jiulong station,through the comparison and analysis,to realize the site boundary layer atmosphere has the following characteristics: in the summer,the boundary air's temperature / humidity decreases with height,and not at the same time of temperature / humidity differences mainly concentrated in the lower atmosphere,the more close to the ground atmospheric temperature / humidity difference is more prominent. Never time performance at the same time,the temperature is lowest at 08: 00,the temperature is highest at 14: 00. The atmospheric humidity are smaller at 08: 00 and 14: 00,the air's humidity is bigger at 02: 00 and 20: 00.Potential temperature is increase with height,the biggest difference in the atmosphere below 3320 m. a temperature profile obvious adiabatic and super adiabatic phenomenon at 14: 00 and 20: 00,mixed boundary layer characteristics is obvious in atmospheric boundary layer at the two times,and atmospheric profile has stable boundary layer characteristics at 08: 00 and 02:00. The boundary layer has a maximum for wind speed,and the wind speed of the boundary layer is the largest at 20: 00.Surface physical quantity day by day evolution: temperature is minimum at 08: 00,the second at 02: 00,the highest temperature appears at 14: 00. 14 when,08,when the minimum average specific humidity is smaller at 14: 00 and 08: 00,and average specific humidity is bigger at 20: 00 and 02: 00. Minimum pressure appears at 20: 00,followed by 14,the highest pressure appears at 02: 00. the ground wind speed is Minimum at 02: 00,the biggest wind speed appears at 14: 00.