%0 Dataset %T "The Belt and Road" Snow Duration Data Set (2000-2024) %J National Cryosphere Desert Data Center %I National Cryosphere Desert Data Center(www.ncdc.ac.cn) %U http://www.ncdc.ac.cn/portal/metadata/d6828f1b-a668-4a9d-9f26-a03191c28bea %W NCDC %R 10.12072/ncdc.nieer.db6901.2025 %A HAO Xiaohua %A ZHAO Qin %A JI Wenzheng %A GAO Weiqinag %K The Belt and Road;snow coverage;snow coverage ratio %X 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. On this basis, calculate the duration of snow accumulation days. The number of days with snow accumulation is defined as the sum of the days with snow accumulation observed in a hydrological year.