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从理论上讲,E601型蒸发器观测记录日蒸发量更具有代表性,但常会因一些其它原因引起观测记录和计算偏差,日蒸发量出现负值就是这种偏差之一。本文对用E601型蒸发器观测出现日蒸发量负值现象的原因进行了技术上的探讨分析,并提出了减少负值出现的注意事项。只有经常注意各种影响因素,正确操作,才能保证日蒸发量的正确观测。
Theoretically, E601 evaporators have a more representative day-to-day evapotranspiration record but often cause observational records and calculation deviations for a number of other reasons. One of these deviations is the negative daily evaporation. In this paper, the E601-type evaporator to observe the phenomenon of the phenomenon of negative daily evaporation were technically explored and analyzed, and put forward to reduce the occurrence of negative Notes. Only regular attention to a variety of influencing factors, the correct operation, in order to ensure the correct observation of daily evaporation.