Comparison Of Ground And Space-based Ozone Data And Calculation Of Ozone Heating Rate At Different Levels

This article selects six different satellite retrieved ozone data, that is,TOU, OMI, GOME2A, SBUV, MLS and AIRS. Two ground-based observations of ozone data about Brewer and Dobson, ECC electrochemical detection of balloon-borne ozone data and ECMWF model inversion ozone data not only have carried on the comparison and analysis for the amount of ozone and ozone vertical profile which corresponding to the different data within the period from 2004 to 2014 on the different sites which is from the low, middle and high latitudes in the northern hemisphere, but also have calculated different levels of ozone heating rate on the low, middle and high latitudes sites and have analysed the heating rate of ozone with latitude and altitude, time distribution characteristics by discussing the advantages and disadvantages of different ozone data and focusing on the qualitied MLS ozone vertical profile data.Combining the average monthly total ozone data comparison with the corresponding linear regression analysis,we find that:the relative deviation between the total ozone of ECMWF and each satellite inversion and the foundation of total ozone for high precision is small, it is between-5%-5%, and mostly in the negative, which indicates the total ozone of ECMWF and each satellite inversion in most cases is smaller than the foundation of total ozone. In addition, the differences of each data between middle and high latitudes is smaller than the low latitudes, while the deviation in summer and autumn when there is a low total ozone is smaller than in the spring and winter in one year,which shows that the different about the total ozone of different data is large when the total ozone is relatively large. Among this,the divergence between SBUV and the foundation of ozone is biggest,while OMI and this is the closest, to a certain extent which can show OMI data among the total ozone of different data have higher credibility over other materials.The comparison results of different ozone vertical profile data are relatively complex, which shows the contrast conclusion of different heights section has obvious differences.ECMWF ozone profile is the measured data of ozone.Therefore, its data and reliability are obviously lower than other materials. The differences of AIRS total ozone is relatively small between in the middle and lower troposphere and ECC,while the deviation between in the middle stratosphere and ECC is the largest. The deviation of MLS profile of ozone in the upper troposphere is more obvious, while the deviation in other layers are small,which changes between -10%～10%. In addition, comparring the correlation between ozone profile data and ECC, we can find that the correlation between the data and ECC was improved with the increase of altitude and latitude. Among them, the correlation of the total ozone between each layer of MLS and the ECC is good, and this correlation is the best by contrast to the correlation of any other datas and ECC,which shows that the data quality of MLS satellite ozone profile is better than other materials.Calculating the heating rate of different levels of ozone and we can discovery:the high value area of heating rate of ozone focus on the upper to the lower stratosphere, it is maximum near a 1 hpa. While the high value area of ozone content is mainly concentrate in the stratosphere of 20～1 hpa, it is maximum near 10 hpa.That is, the change of ozone with high heating rate is not a one-to-one correspondenceand to the change of ozone content with height, which shows that ozone heating rate is not only related to ozone content, but also related to the mutual influence of factors which is the Angle of the sun, albedo, air density and so on.