Permafrost, active layer and meteorological data from a relict permafrost site at Mahan Mountain, Northeast of Qinghai-Tibet Plateau (2010–2020) Version 2.0

We present 11 years of such data for a relict permafrost site at Mahan Mountain on the northeast of Qinghai-Tibet Plateau. The meteorological data are comprised of air temperature, air relative humidity, wind speed and direction, shortwave and longwave downwards and upwards radiation, atmospheric pressure, precipitation, and ground surface temperature on half-an-hour timescale. The active layer data include daily time series of soil temperature and soil moisture at five levels. The permafrost data consist of ground temperature at twenty depths. The released high-quality and long-term datasets are expected to serve as accurate forcing data and validate and assess remote-sensing products and land surface models for a broader geoscientific community.