TY  - Data
T1  - "The Belt and Road" Snow First Day Data Set (2000-2024)
A1  - HAO Xiaohua 
A1  - ZHAO Qin
A1  - JI Wenzheng
A1  - GAO Weiqinag
DO  - 10.12072/ncdc.nieer.db6900.2025
PY  - 2025
DA  - 2025-11-19
PB  - National Cryosphere Desert Data Center
AB  - Based on multi-source remote sensing data, a set of snow area data of the "the Belt and Road" region was generated by using the MARS model combined with the method of land type features for automatic snow recognition. By leveraging the advantages of machine learning in solving nonlinear fitting problems and avoiding the misjudgment of traditional snow remote sensing recognition in complex terrain and terrain, the accuracy of this product in mountainous and forested areas has significantly improved compared to existing MODIS snow products. On the basis of this product, a dataset of the first day of snow accumulation was calculated. The definition of the first day of snow accumulation is the corresponding date of the first consecutive 5-day occurrence of snow in a hydrological year.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/3ee02200-083c-475a-a82b-b26f07fac78d
ER  -