Recently, a meteorological BSRN benchmark radiation observation project of the Chinese Academy of Sciences, in which Xi'an Guanke participated in the construction, successfully completed the installation and commissioning of equipment, and achieved real-time high-precision measurement of multiple elements such as total solar radiation, direct radiation, scattered radiation, ultraviolet A/B, long-wave radiation and photosynthetically active radiation, further strengthening the frontier scientific research of forest remote sensing, information, digital forestry, forest ecological mechanism, etc., and facilitating large-scale satellite-machine-ground synchronous comprehensive observation experiments.
The observation system is equipped with a high-precision, scientific research-grade CMP22 pyranometer, which meets the performance standards of Class A instruments in the ISO 9060:2018 standard. The use of high-quality quartz covers widens the spectral range, improves directional response performance, and reduces zero point offset. It is suitable for the high-precision measurement needs of scientific research institutes. At the same time, the CMP22 is equipped with a CVF4 forced ventilation hood, which can quickly clean the cover in severe cold or morning dew, rain and snow.
The BSRN series of reference radiation stations are designed in accordance with the standards of the World Meteorological Organization's World Climate Research Program (WCRP) Surface Radiation Reference Station Network (BSRN), and can be used to calibrate other solar radiation data. They can meet the business needs of the national climate monitoring network and the high precision and high stability requirements of observation data.
Benchmark radiation observations mainly include solar horizontal radiation, scattered radiation, direct radiation, reflected radiation, atmospheric long-wave radiation, ground long-wave radiation, ultraviolet radiation, photosynthetically active radiation and other radiation measurements, as well as corresponding conventional meteorological element measurements.
The system is equipped with a fully automatic solar tracker, which does not require additional computer support and will automatically perform time and position corrections through GPS and automatically track changes in the sun's position.
High standards: in line with the standards of the World Meteorological Organization (WMO) and the underlying surface radiation reference station network (BSRN) and my country's standards.
Widely used: has been widely used in agriculture, meteorology, solar energy resource surveys and other fields throughout the country and even the world.
Fully automatic: automatically tracks the sun's displacement changes every day, without manual operation, saving time, effort, accuracy and reliability.
