Updates to C-LSAT 2.1 and the development of high-resolution land surface air temperature and diurnal temperature range datasets

Wei, Sihao; Li, Qingxiang; Xu, Qiya; Li, Zichen; Zhang, Hanyu; Lin, Jiaxue

doi:https://doi.org/10.5194/essd-17-4985-2025

Articles | Volume 17, issue 9

https://doi.org/10.5194/essd-17-4985-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-17-4985-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 9

Data description paper

|

29 Sep 2025

Data description paper |

| 29 Sep 2025

Updates to C-LSAT 2.1 and the development of high-resolution land surface air temperature and diurnal temperature range datasets

Sihao Wei, Qingxiang Li, Qiya Xu, Zichen Li, Hanyu Zhang, and Jiaxue Lin

Supplement

https://doi.org/10.5194/essd-17-4985-2025-supplement

Data sets

China global Land Surface Air Temperature 2.1 (C-LSAT 2.1) Sihao Wei et al. https://doi.org/10.6084/m9.figshare.28255394.v1

High-Resolution China global Land Diurnal Temperature Range version 1 (C-LDTR HRv1) Sihao Wei et al. https://doi.org/10.6084/m9.figshare.28255568.v2

High-Resolution China global Land Surface Air Temperature version 1 (C-LSAT HRv1) Sihao Wei et al. https://doi.org/10.6084/m9.figshare.28255505.v2

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Short summary

This study introduces the update to the C-LSAT 2.1 station data and its gridded dataset (5° × 5°) for 1850–2024, into which nearly 3000 additional stations were merged. Building on this, high‑resolution (0.5° × 0.5°) land surface air temperature (C‑LSAT HRv1) and diurnal temperature range (C‑LDTR HRv1) datasets for 1901–2023 were produced via thin-plate spline interpolation of the climatology fields and adjusted inverse distance weighted interpolation of the anomaly fields.