The material balance observation points are arranged on the basis of the previous year's observation and research work, that is, nine cross-sections (A-I, etc.) are arranged from the ice tongue to the top of the melting area of the East branch and the West Branch of Glacier No.1 respectively. Three measuring rods are arranged at equal distance on the ice surface for each cross-section to observe the volume consumption during the ablation period. The data of the accumulation area are obtained from the observation results of digging snow pits Yes. The material balance observation method of Glacier No.1 in this year is the same as that of the previous year, that is, the observation starts from the end of April / the beginning of May, and the observation is conducted at the end of each month or at the beginning of the month, and the last observation is completed at the end of August / early September. The observation equipment includes tape measure, material balance scale, flower pole, steam drill, etc.

The material balance observation method of Glacier No.1 in this year is the same as that of the previous year, that is, the observation starts from the end of April / the beginning of May, and the observation is conducted at the end of each month or at the beginning of the month, and the last observation is completed at the end of August / early September. The observation equipment includes tape measure, material balance scale, flower pole, steam drill, etc. <

Data processing and data analysis are carried out in strict accordance with the instrument operation specifications, and have been published in relevant academic journals. Data acquisition mainly includes field observation and indoor analysis and compilation. In the field observation, the traditional flower pole and snow pit method are used for observation; the height of zero balance line is obtained by area weighting method in indoor analysis. According to the material balance standard observation method and specification.