The LI-7500RS/DS vorticity covariance system is a greenhouse gas flux observation system developed and produced by LI-COR Corporation in the United States, which is particularly suitable for remote areas with power supply limitations. The system is composed of CO₂、 H₂O、 Composed of basic flux monitoring equipment such as energy.

There are also a range of high-performance solutions available for data processing and management. Equipped with SmartFlux^®The LI-7500RS/DS vorticity covariance system of the module can obtain raw monitoring data in the field and directly process it into final flux results, which can be directly used for subsequent scientific research and analysis. Additionally, you can choose FluxSuite^®To manage flux data and monitor instrument status in real-time. These functions are currently only available in the LI-COR vorticity covariance analysis system worldwide.

Main advantage

·In situ rapid and accurate CO₂And H₂O measurement
·Accurate temperature control ensures long-term stability of optical filters
·The improved optical structure enhances the stability of the instrument in dusty environments
·Online data processing and storage of complete vorticity covariance dataset
·Low power consumption, can be powered by solar energy

system composition

Technical principles

system principle
The system adopts the vorticity covariance method, using high-frequency wind speed and gas concentration data above 10Hz, and through a series of data calculation and processing processes, obtains CO within the monitoring range₂、 H₂O、 Equivalent flux of energy. Used for research in boundary layer meteorology, ecology, global change, and other fields.

data acquisition
Output GHG data format, including complete instrument information, plot information CO₂And H₂The concentration of oxygen, three-dimensional wind speed, and data from biological meteorological sensors are stored in industrial grade USB flash drives. Convenient for future use of EddyPro^®Perform data processing.

data processing

It is easy to process raw GHG format data into flux results using LI-COR's open source. EddyPro^®The local version is installed on a personal computer and allows for various processing methods to perform in-depth analysis on the raw data. EddyPro^®Field version with SmartFlux^®The system is installed on a field vorticity monitoring station and can process complete flux results in real-time according to personal settings. The software provides Express and Advanced modes, which can adapt to simple and fast common data processing, and also provide flexible choices for expert researchers

application area

Research on boundary layer meteorology, carbon water cycle, remote sensing data validation, ecosystem carbon water balance, land resource management, urban flux research, etc.

Procurement Information

(including SmartFlux)^®Real time online flux calculation module

optional components






free access

extensive reading

Origin and Manufacturer: LI-COR Corporation, USA