%0 Dataset
%T A high-resolution tropopause folding dataset over China from 2014–2023
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/5cb146d0-7a00-4320-bf7a-8fb7b9fdf3db
%W NCDC
%R 10.12072/ncdc.atmosphere.db7400.2026
%A Cao le
%K tropopause folding;STT;three-dimensional identification and calibration method
%X Tropopause folding is the core dominant mechanism of stratospheric transport (STT), which significantly affects tropospheric ozone, regional air quality and weather processes. However, there is still a lack of multi-year high-resolution tropopause folding data sets in the China region. In order to fill this gap, this data is based on ERA5 reanalysis data and uses three-dimensional identification and calibration methods to build a complete data set of tropopause folding in China and surrounding areas from 2014 to 2023.This dataset has 10 years of continuous time series coverage, and also has a rare high spatial resolution of 0.25°×0.25° and hourly temporal resolution, which can support fine analysis of the spatiotemporal evolution characteristics of tropopause folding in the region. Through comparison with similar data sets around the world and verification of multiple groups of stratospheric intrusion cases, it is confirmed that the accuracy of this data set is reliable and can completely capture the generation, death and evolution process of tropopause folding events.This high-resolution dataset is not only consistent with the results of previous large-scale climate state studies, but also can depict the fine spatial structure of traditional low-resolution data that has been smoothed out. At the same time, the data set reveals the unique temporal and spatial distribution laws of tropopause folding in China: tropopause folding events occur frequently in winter and spring in China, and the frequency is significantly low in summer and autumn; spatially, shallow folding is concentrated in the subtropical jet stream; Moderate intensity folding The high-incidence areas in winter are located on the Qinghai-Tibet Plateau and the Sichuan Basin; although the frequency of deep folding is relatively low, it has a significant impact on southwestern China, including the Qinghai-Tibet Plateau, and can significantly change the near-surface ozone concentration.This data set can pro