The surface heat flux (G) is an important part of the land surface energy balance. It reflects the heat transfer between the surface and the soil and the soil energy storage and release process. It is important for understanding the thermal conditions of frozen soil, land-atmosphere interactions and climate change response in alpine regions. It is of great significance. This dataset is based on the published soil temperature data set of 9 layers in the Three‑River Source Region from 1982 to 2015 with a spatial resolution of 0.01°×0.01°, combined with soil moisture and other data, and uses a dynamic soil thermal conductivity parameterization scheme to calculate the surface heat flux caused by soil temperature changes, and further considers the latent heat of phase transition during soil freeze-thawing to obtain monthly surface heat flux (G) data in the Three‑River Source Region area from 1982 to 2015. The spatial resolution of the data is 0.01°×0.01°, and the temporal resolution is monthly in units of W m ². G has positive energy absorption by soil and negative energy release to the atmosphere, which can reflect the seasonal and interannual changes in surface heat input and output in the study area. The results show that the average annual value of G in the Three‑River Source Region from 1982 to 2015 is generally positive, and the regional average is 0.113 W m ², indicating that the soil in the Three‑River Source Region generally absorbs net energy during the study period. G has significant seasonal variation characteristics. The general heat absorption in spring and summer, and the general heat release in autumn and winter. The heat absorption is strong in May and the most obvious in December.
| # | number | name | type |
| 1 | U20A2081 | Interaction between frozen soil and vegetation and regional climate effect in the Three Rivers Source Region | National Natural Science Foundation of China |
| 2 | 42675200 | Improvement of Hydro-Thermal Coupling Parameterization Scheme for Ice-Rich Permafrost on the Qinghai-Tibet Plateau and Simulation of Land Subsidence | National Natural Science Foundation of China |
| 3 | xbzg-zdsys-202102 | Land surface processes and climate change in arid and cold regions | other |
| 4 | CSFSE-ZZ-2410 | Comparisons of thermokarst lake dynamics and associated climatic effects on the Qinghai‑Tibet Plateau and in the Arctic | other |
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
CSTR:11738.11.ncdc.db7777.2026
10.12072/ncdc.db7777.2026
