LI-7500RS/DS Vorticity Covariance Analysis System

NegotiableUpdate on 01/22

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

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 consists of basic flux monitoring equipment for CO2, H2O, and energy.

Product Details

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 the final flux result, 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.

main advantages

·In situ rapid and accurate CO₂And H₂O measurement
·Accurate temperature control ensures the 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

LI-7500DS Open Circuit CO2/H2O Intelligent Analysis System LI-7500DS is a new generation digital open circuit CO2/H2O intelligent analysis system designed for rapid measurement of CO2 and H2O in atmospheric environments. Its low power consumption of 8W and almost maintenance free features make it more suitable for stable measurements at field observation stations.
LI-7500RS Open Circuit CO₂/H₂O analyzer Open circuit CO₂/H₂The O gas analyzer LI-7500 and LI-7500A (previous versions of LI-7500RS) have been widely used in the field of vorticity covariance carbon flux monitoring, with over 90% of carbon flux observation networks (FLUXNET) using this analyzer. LI-7500RS is the most reliable generation of open circuit CO₂/H₂The O intelligent analyzer is designed for rapid measurement of CO in the atmospheric environment₂And H₂Designed with low power consumption and almost maintenance free features, it is more suitable for stable measurements at field observation stations.
GillSeries of 3D ultrasonic anemometers Three dimensional ultrasonic anemometers such as WindMaster, WindMaster Pro, R3-50, or HS-50 can be optionally selected. These products are robust, stable, and require almost no daily maintenance, making them suitable for flux research in various environments.
BiometBiometeorological parameter measurement system (optional) Biomet's data can be fully integrated into. ghg vorticity data and directly entered into EddyPro^®Perform computational processing. The integration of Biomet data and vorticity data is of great significance for flux interpolation and result analysis, as well as for data preservation.	$\\\\$
SmartFlux^® Real time online flux calculation module SmartFlux^®Module with built-in EddyPro^®Software that can calculate and obtain flux results in real-time online. Remote data transmission can be achieved through cellular data networks or satellites.
FluxSuite^TMData online monitoring and management system(optional) FluxSuite^TMIt is a data online monitoring and management system based on cloud servers. Equipped with SmartFlux^®The station only needs to have internet access to choose to use. Convenient for station data management and status monitoring. The real-time warning function is particularly suitable for maintenance of remote area stations. Suitable for multi site management at the same time. FluxSuite^TMThe page adopts adaptive design and supports access on both PC and mobile devices.

Technical Principle

System Principles
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, and change.

Principle of analyzer
LI-7500RS CO₂/H₂The O analyzer uses non dispersive infrared spectroscopy to measure CO in the air₂And H₂The concentration of O. Infrared passes through a temperature controlled filter and then through an open sampling space to reach the detector. CO in the sampling space of infrared radiation with specific wavelengths₂And H₂O absorption, obtaining CO by calculating the degree of infrared attenuation in this band₂And H₂The concentration of O.

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

Using LI-COR's open-source softwareData processing software EddyPro^®It is easy to process raw GHG format data into flux results. 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 real-time flux results based on 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

EddyPro

Application field

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

LI-7500RS Open Circuit CO₂/H₂O analyzer (including SmartFlux)^®Real time online flux calculation module
WindMaster Pro 3D Ultrasonic Anemometer

Optional components

LI-7200RS Closed Circuit CO₂/H₂O analyzer (replaceable LI-7500RS open circuit CO)₂/H₂O analyzer)
WindMaster/R3-50/HS-50 3D ultrasonic anemometer (can replace WindMaster Pro 3D ultrasonic anemometer)
Biomet Biometeorological Parameter Measurement System
FluxSuite^TMData online monitoring and management system

Get it for free
EddyPro^®Vorticity covariance data processing software