Study On High Altitude Variation Of Climate Elements In Harbin

Since the 80s of the 20th century, climate change has increasingly become concerns of countries in the world, climate change affects not only the production and life of mankind, but also related to community health and sustainable development.In this study, the sounding station in Harbin from 1971 to 2000, the two time (07, 19 pm) the average monthly exchange of detecting the global record, select the surface, 850hPa, 700hPa, 500hPa, 400hPa, 300hPa, 200hPa, 100hPa, 50hPa and 30hPa other information than the whole of the 10 layers. Linear fit, correlation and regression analysis, analysis of each layer and the quarter Harbin temperature, wind speed, pressure, specific humidity and other meteorological factors and relationship trends. And analyzed the temperature and wind speed and water vapor, and investigate the temperature and the relationship between carbon dioxide and water vapor. The results showed that:(1) Harbin annual and seasonal average surface temperature showed a warming trend: the quarter, the ground temperature to increase in winter maximum, summer minimum; on the middle and lower troposphere temperature strength is concerned, although the season warming, but not significantly; on the ground ~ 300hPa average temperature compared to the winter maximum, summer minimum. 200hPa level over the four seasons are the main cooling. The upper troposphere to lower stratosphere, the largest in summer and autumn minimum.(2) Harbin wind speed increases with height, to the maximum tropopause, stratospheric wind speed decreased with height. All levels of the largest wind speed in winter and summer minimum in summer than in autumn. The wind speed trends for the winter and spring, the troposphere, the lower wind speed decreased significantly, the stratospheric wind velocity increased significantly. Summer and autumn surface wind speed dropped significantly. Coefficient of linear trend in winter wind speed maximum in spring and autumn minimum in summer than in winter.(3) Harbin, specific humidity levels in summer maximum, winter minimum and autumn than in spring. Water vapor content of the quarter decreased with increase in height. Winter and spring to the upper troposphere, almost no water vapor. The radio of wet season were higher than levels tended to increase with height in the ground and only in winter than in the wet upper troposphere increased significantly, other than the radio of wet season increase was not significant.(4) Harbin, surface pressure increased in each season reached a significant level, the largest rise factor in spring, followed by winter, summer and autumn. Tropospheric pressure rise compared to the upper stratosphere upward trend in atmospheric pressure rise is greater than the lower stratosphere. Comparison of stratospheric air pressure decreased, summer stratospheric air pressure drop was significant that only the stratospheric air pressure decreased significantly, no significant decline in other seasons.(5) Established the relationship between CO2 and Water-vapor equation, CO2, Water-vapor also increases, each additional unit of CO2, steam has increased 0.011g/kg.(6) Temperature and specific humidity at all levels there is a linear relationship between the various levels of steam on the increased role played by the temperature, the increase of temperature with height more obvious effect.