Articles | Volume 15, issue 2
Data description paper
14 Feb 2023
Data description paper |  | 14 Feb 2023

A 250 m annual alpine grassland AGB dataset over the Qinghai–Tibet Plateau (2000–2019) in China based on in situ measurements, UAV photos, and MODIS data

Huifang Zhang, Zhonggang Tang, Binyao Wang, Hongcheng Kan, Yi Sun, Yu Qin, Baoping Meng, Meng Li, Jianjun Chen, Yanyan Lv, Jianguo Zhang, Shuli Niu, and Shuhua Yi

Data sets

A 250 m annual alpine grassland AGB dataset over the Qinghai-Tibetan Plateau (2000-2019) based on in-situ measurements, UAV images, and MODIS Data H. Zhang, Y. Sun, Y. Qin, B. Meng, M. Li, J. Chen, Y. Lv, S. Niu, and S. Yi

Short summary
The accuracy of regional grassland aboveground biomass (AGB) is always limited by insufficient ground measurements and large spatial gaps with satellite pixels. This paper used more than 37 000 UAV images as bridges to successfully obtain AGB values matching MODIS pixels. The new AGB estimation model had good robustness, with an average R2 of 0.83 and RMSE of 34.13 g m2. Our new dataset provides important input parameters for understanding the Qinghai–Tibet Plateau during global climate change.