Posts Tagged ‘CO2’
Summer and Winter Settings for LI-7500A and LI-7200 Gas Analyzers
Tuesday, January 24th, 2012
The LI-7200 and LI-7500A gas analyzers regulate the temperature of the chopper motor housing to ensure stable performance over the entire operating temperature range of -25 to +50 °C. The Settings tab of the LI-7200/LI-7500A Windows application software has an Advanced tab that provides options for selecting summer (30 °C) and winter (5 °C) settings…
Read More...Tags: CO2, eddy covariance, gas analyzer, LI-7200, LI-7500A
Posted in Gas Analyzers, LI-7200, LI-7500A, Tech Tips | No Comments »
EddyPro Units – Distinguishing Between Molar Density, Mole Fraction, and Mixing Ratio
Wednesday, November 16th, 2011
Confused by the units provided by your gas analyzer? Which units should you use when processing eddy covariance data sets in EddyPro? This chart summarizes the definition of units, different ways to express measurements, and which instruments record data in which units. Measurement Type Intended Meaning Common Units Typical Instruments Molar Density • A measurement…
Read More...Tags: CO2, eddy covariance, gas analyzer, LI-7000, LI-7200, LI-7500A, LI-7700, methane, open path analyzer
Posted in EddyPro, LI-6262, LI-7000, LI-7200, LI-7500A, LI-7700, Tech Tips | No Comments »
Configuring the CSAT3 for Data Logging in .ghg Format
Wednesday, November 2nd, 2011
A CSAT3 sonic anemometer (Campbell Scientific, Inc., Logan, UT) can be configured to log raw flux data in conjunction with an LI-7500A or LI-7200 infrared gas analyzer from LI-COR in a compressed .ghg file format. The .ghg file format makes it possible to continuously collect raw flux data for more than two months on a…
Read More...Tags: CO2, CSAT3, eddy covariance, flux, gas analyzer, LI-7200, LI-7500A
Posted in EddyPro, LI-7200, LI-7500A, Tech Tips | No Comments »
Hypothetically Speaking, Nothing is Impossible
Wednesday, September 7th, 2011
Hypothetically speaking, nothing is impossible. Until recently, it was widely believed that it was not possible to accurately determine eddy fluxes directly from the gas mixing ratio computed by a gas analyzer without the WPL density corrections. However, a team of LI-COR scientists, aided by the AmeriFlux QA/QC team, member of the USDA, and University…
Read More...Tags: CO2, eddy covariance, H2O, LI-7200, mixing ratio
Posted in LI-7200, What's New | No Comments »
LI-COR® Participates in the RECS Program
Wednesday, August 17th, 2011
LI-COR® Biosciences recently participated in the Research Experience in Carbon Sequestration (RECS) Program held in Mobile, Ala., June 6-15. This is the third year in a row LI-COR has participated in the program. RECS is a 10-day education and training program designed for graduate students and young professionals in the carbon capture and storage (CCS)…
Read More...Tags: carbon sequestration, CO2, LI-8100A, Soil Flux
Posted in Soil Flux | No Comments »
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