Trajectory-mapped Ozonesonde dataset for the Stratosphere and Troposphere, version 2 (TOST-v2)

Trajectory-mapped Ozonesonde dataset for the Stratosphere and Troposphere, version 2 (TOST-v2) is improved and updated from 1970-2021 with seasonal, annual and decadal-monthly ozone climatology. TOST-v2 is provided on a grid of 5º × 5º × 1 km (latitude, longitude, and altitude) at 26 altitude levels in two altitude coordinates (by geometric levels and pressure levels), from two altitude starting levels (altitude above sea level and altitude above ground level), for three temporal resolutions (in the seasonal mean for each year, the annual means for each year from 1970 to 2021, and monthly means for each decade from the 1970s to the 2010s) and with three types of data fields (trop-stra, troposphere-only, and stratosphere-only) for users’ convenience. In addition, TOST-v2 also generated the corresponding datasets that show ozone variation at 3 percentile levels (25, 50 and 75th). Details of this dataset can be found in the data description file. If you use TOST dataset for related scientific research, please cite the below-listed corresponding reference (Liu et al., 2013a, b; Zang et al., 2024): Liu, G., Liu, J., Tarasick, D., Fioletov, V., Jin, J., Moeini, O., Liu, X., Sioris, C., and Osman, M.: A global tropospheric ozone climatology from trajectory-mapped ozone soundings, Atmospheric Chemistry and Physics, 13, 10659-10675, 2013a. Liu, J., Tarasick, D., Fioletov, V., McLinden, C., Zhao, T., Gong, S., Sioris, C., Jin, J., Liu, G., and Moeini, O.: A global ozone climatology from ozone soundings via trajectory mapping: a stratospheric perspective, Atmospheric Chemistry and Physics, 13, 11441-11464, 2013b. Zang, Z., Liu, J., Tarasick, D., Moeini, O., Bian, J., Zhang, J., Thompson, A. M., Van Malderen, R., Smit, H. G. J., Stauffer, R. M., Johnson, B. J., and Kollonige, D. E.: An improved Trajectory-mapped Ozonesonde dataset for the Stratosphere and Troposphere (TOST): update, validation and applications, Atmospheric Chemistry and Physics, accepted, 2024.