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确定水面蒸发量的方法有器测法、经验公式法、水量平衡法、热量平衡法.水文测站观测水面蒸发通常用器测法。60年代以来,水面蒸发观测使用的标准仪器是E-601型蒸发器,其蒸发桶以3毫米厚钢板焊接而成(简称E-601钢)。该仪器除本身笨重外,器壁内外需经常除锈涂抹油漆,影响观测工作正常进行。尽管如此,铁质器皿在水下、土中使用,仍易锈蚀,使用年限不长,而在沿海地区更是如此。为此,南京水利水文自动化研究所试用新型材料玻璃钢制作E-601型蒸发器(简称E-601玻),其形状、尺寸不变.玻璃钢具有容重小、导热系数小、机械强度大、不生锈、耐温抗冻、造价低、易于保养等优点.1986年在全国各类
Methods to determine the amount of water surface evaporation are instrumental methods, empirical formula method, water balance method and thermal balance method. Since the 1960s, the standard instrument used for water surface evaporation observation was the E-601 evaporator, whose evaporation barrel was welded with a 3 mm thick steel plate (referred to as E-601 steel). In addition to the instrument itself bulky, inside and outside the wall often rust paint, affecting the normal observation work. Nonetheless, iron vessels are used underwater and in soil and are still prone to rusting and have a short useful life, especially in the coastal areas. To this end, Nanjing Institute of Water Resources and Hydraulics trial production of new material FRP E-601 evaporator (E-601 glass), its shape, size unchanged. FRP has a small bulk density, thermal conductivity, mechanical strength, Rust, temperature and frost resistance, low cost, easy maintenance, etc .. In 1986 all kinds in the country