system function

The SSG2 snow water equivalent meter is a precision snow water equivalent measurement device that is easy to install and fast, suitable for field observation. Designed with aluminum sheets, it is sturdy and durable, requiring minimal maintenance to ensure the effectiveness of accuracy. The wide flat frame plate minimizes the impact of winter icing, and the lightweight aluminum material greatly reduces the thermal resistance, making the heat conduction between the plate and the ground as close as possible to the natural state. The entire device can be easily compatible with most of the automatic weather stations currently on the market，Or other signal processing systems, widely used. Measurable snow thickness、Snow depth equivalentandSnow density.

working principle

Deep snow

The principle of measuring sensors is to calculate the snow depth between the sensor and the snow surface through the transmission time of ultrasonic waves. The impact of temperature on measurement is addressed through automatic temperature compensation.

Snow water equivalent: The weight of snow on the snow pillow can be measured by the built-in weighing sensor, which can obtain the snow water equivalent. At the same time, combined with the snow depth sensor to measure the snow thickness on the snow pillow, the snow density can be calculated.

System features

lAutomatic measurement of snow water content（SWE）

lActual manifestation of snow characteristic values

lThe high precision of measurement greatly reduces the impact of ice bridges.

l*Greatly reduce the resistance between the board and the ground.

lReliable, lightweight, and durable aluminum structure.

lEasy installation

lNo need for antifreeze

SSG-2 is the main equipment for snow characteristic analysis and an upgraded version of SSG, which can quickly and easily measure snow water equivalent (SWE). SSG-2 uses specially designed aluminum sheet to ensure accurate measurement. Using lightweight aluminum material with low thermal resistance to enhance the impact of heat on ice bridging. The entire design better simulates changes in natural conditions, reducing errors to a minimum. Output signal extensions include SDI-12, 20 mA, digital output, RS-485 ASCII, or network communication protocols. Therefore, integrating and connecting meteorological stations or other signal processing systems is easy and simple.

Installation Example

The SSG-2 snow characteristic analysis system aims to maintain the same level as possible with the ground. Its purpose is to simulate the on-site measurement environment and measurement values as much as possible, with higher reliability. Please note that the horizontal angle of installation should not exceed 5 °.

On site case photos

Application Cases

（1) Ecological Monitoring of Qinghai Lake Surrounding Qinghai Normal University

（2) Institute of Cold and Dry Regions, Chinese Academy of Sciences

（3) Northeast Forestry University

（4) Harbin Normal University

reference

1. Zhang Wei, Shen Yongping, He Jianqiao, He Bin, Nurlan Hazezi, Xue Jiao, Wang Guoya "Observation and analysis of snow characteristics in different underlying areas during the snowmelt period in the Altay Mount Taishan Mountains." Glacier Frozen Soil, Issue 03, 2014

2. Zhang Bo; Liu Zhihui; Wang Hui; Fang Shifeng;; Analysis of snowmelt water infiltration and simulation of infiltration rate during snowmelt period [J]; Anhui Agricultural Science; Issue 24, 2013

3. Tian Hua; Yang Xiaodan; Zhang Guoping; Zhao Lina;;Analysis of Meteorological Causes of Snowmelt Floods in Xinjiang in Mid March 2009[A]; Proceedings of the 2010 Academic Annual Meeting of the Chinese Water Conservancy Society (Volume 1) [C]; 2010

4. Choi G, Robinson D, Kang S.Changing northern hemisphere snow seasons[J]. Journal of Climate, 2010, 23(19): 5 305-5 310.

5. [Wang Jian, Li Shuo. The impact of climate change on snowmelt runoff in mountainous areas of inland arid regions in China]. Chinese Science: Volume D, 2005, 35 (7): 664-670