A New Principle for designing Pluviometer and Evaporimeter of Balance Type

[摘要] In practical meteorology we find inconvenience in adjusting the zero point and scale division of existing evaporimeter and pluviometer of balance type. In the present note we propose to make the angle between the indicator and the arm of water basin exactly 90°. The scale then becomes proportional to the tangent of the angle between the indicator and the vertical. Thus a remarkable facility is attained both in calibration of scale and in maintenance of zero point.

[学科分类] 大气科学