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Eddy Covariance Port Forwarding and Blocking

Eddy Covariance Port Forwarding and Blocking

Why does remote connectivity through a cell modem to a LI-COR eddy covariance system work from certain Internet connections and not from others?

LI-COR eddy covariance systems can have several devices which use the TCP/IP protocol, and they can all be connected to a modem which has access to the Internet. A port forwarding rule is set up in the modem, so that communications arriving through certain ports are forwarded to specific instruments. For example, the LI-7200RS CO2/H2O analyzer communicates…

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R3 and HS Sonic Anemometer Configuration

R3 and HS Sonic Anemometer Configuration

The Gill R3 and HS series of anemometers can be connected to the LI-7550 to collect data on a USB drive.  This can facilitate remote data monitoring and collection through the available Ethernet connectivity.

The anemometer will have to be preconfigured to send data out in the required format. This can be achieved using any serial communication software like Windows HyperTerminal or Tera Term (which can be downloaded for free here). You can also use the WindCom or RCom2…

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Updating Positional Tags for Biomet Data

Updating Positional Tags for Biomet Data

Version 8.0.0 of the LI-7500RS/LI-7500A/LI-7200RS/LI-7200 gas analyzer embedded software implemented a new identifier for Biomet data.  The identifier is a set of three digits that indicates the horizontal position (h), vertical position (v), and replicate number (r) at that position.  This naming protocol is based on the protocol for the AmeriFlux and ICOS networks (http://ameriflux.lbl.gov/data/aboutdata/data-variables/).  This information is stored by the LI-7550 in the biomet.metadata file for use with EddyPro® Software.  In the Sutron datalogger, there is a communications tag…

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Wiring an RM Young Sonic Anemometer to a LI-COR EC System

Wiring an RM Young Sonic Anemometer to a LI-COR EC System

The RM Young 81000 sonic anemometer is one of the many sonic anemometers that can be used with a LI-COR EC system. Since the RM Young provides a junction box, wiring it to the LI-7550 is straight forward. The Analog Input/output cable (Part Number 392-10109) provided with the LI-7550 spare parts kit can be used instead of the Auxiliary Sensor Interface Unit. You can wire the bare lead ends directly to the junction box of the RM Young 81000 and…

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Control Over Drought

Control Over Drought

Water is one of the most precious natural resources—and one that we often take for granted. But droughts are common and they’ve proven time and time again that we don’t know enough about the water cycle. That is why the Chinese Ecosystem Research Network (CERN) selected LI-COR eddy covariance systems to measure evapotranspiration across the country. Recently the Water and Waste Digest interviewed Dave Johnson, Senior Product Manager, to learn more about how the Chinese Ecosystem Research Network is using evapotranspiration to…

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