Visual snow depth measurer and method of using same

Abstract

The invention is intended to solve the problem of accurately measuring snow depth. A visual snow depth measurer comprises a ruler, a visual end, and a visual circuit; the ruler is hollow; the cross section of the ruler is rectangular; the visual end is positioned at the bottom end of the ruler; the visual end is in wedged shape; the upper end of the visual end is as large as the ruler, and the lower end of the visual end is a sharp end; the visual end includes a vertical face and a 45-degree slant facing the vertical face; the vertical face is made of a transparent material and is provided with graduation marks which are continuous with those on the ruler; the vertical face is used for observing an external environment and measuring snow depth; the slant is provided with a plane reflectorwhich reflects the vertical face to the top end of the ruler; the visual circuit includes a power source, a switch and a bulb; the bulb is arranged in the visual end and is used for providing light required to observe the vertical face and the external environment. The visual snow depth measurer allows a dividing line between snow and ground to be distinguished through the visual end and the visual circuit, so that measurement errors caused by insertion of a traditional ruler under snow cover are avoided; the visual snow depth measurer is high in accuracy and simple to operate.

Description

technical field [0001] The invention relates to the field of snow cover science research, in particular to the snow cover depth measurement in snow cover scientific data collection. Background technique [0002] Snow depth is an important parameter in snow hydrological models and snow quantitative remote sensing. Therefore, snow depth measurement is very important in snow scientific research. [0003] At present, the snow layer density measurement device is mainly a ruler, which is inserted vertically into the bottom of the snow accumulation to read the snow accumulation depth. Since the ruler is usually inserted into the grass layer or even the soil layer below the snow cover layer, it is difficult to find the boundary line between the snow cover and the ground, and the zero scale of the ruler cannot be aligned with the boundary line, resulting in inaccurate measurement results. Contents of the invention [0004] The problem to be solved by the invention is to accurately...

AI Technical Summary

Problems solved by technology

Because the ruler is usually inserted into the grass layer or even the soil layer below the snow layer, it is difficult to find the dividing line between the snow and the ground, and the zero scale of the ruler cannot be aligned with the dividing line, resulting in inaccurate measurement results

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