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水文行业的《水面蒸发量观测规范》规定,蒸发量以8时为日分界,冰情观测以8时为准。因各省对规范条文理解不同,造成结冰日期统计方法差异。文章结合工作实践论证,结冰日期确定与蒸发量的计算方法不同,应以当日8时日期为准。
Hydrology industry, “Water Evaporation Observation Code” provides that the evaporation of 8:00 for the demarcation, ice observation to 8:00 prevail. Due to different understanding of the norms of the provinces, resulting in differences in statistical methods of ice dates. Combined with the work of practical demonstration article, the freezing date to determine the evaporation and the calculation method is different, should date 8 o’clock date prevail.