Posts Tagged ‘H2O’
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 »
It’s Lonely at the Top
Making Measurements at the Loneliest Place in the World
Tuesday, January 5th, 2010
After more than a century of guarding mariners from a deadly reef below the surface of Lake Superior, the Stannard Rock Lighthouse now has an additional mission; housing equipment to determine how much of the great lake’s water is being lost to evaporation. Scientists believe that increased evaporation, possibly caused by global climate change, might…
Read More...Tags: CO2, gas analyzer, H2O, LI-7500A, NOAA
Posted in Feature Stories, Gas Analyzers | No Comments »
Modifying the LI-6262 CO2/H2O Gas Analyzer for automatic restart
Monday, October 5th, 2009
Some research applications may require that the LI-6262 CO2/H2O analyzer (or the LI-6252 CO2 analyzer) automatically restart after a power outage. By design, the LI-6262 will not automatically restart after a power interruption, but with a simple modification it can be configured to do so. This is accomplished with some minor soldering (in a tight…
Read More...Tags: CO2, gas analyzer, H2O, LI-6262
Posted in Gas Analyzers, LI-6262, Tech Tips | 5 Comments »
NEW! LI-7200 CO2/H2O Analyzer
Combining the best of open and closed path analyzers
Monday, October 5th, 2009
Measuring atmospheric trace gases at high frequency and precision can be difficult – even in the best of conditions. And, it gets even more complicated when confronted with challenges like rain, snow, and extreme temperatures. As part of our effort to help scientists overcome these difficulties, LI-COR Biosciences introduces the LI-7200 CO2/H2O Analyzer, which is…
Read More...Tags: CO2, gas analyzer, H2O, LI-7200
Posted in Feature Stories, Gas Analyzers | 4 Comments »
Calibrating the LI-7000 for Eddy Covariance Measurements
Monday, January 5th, 2009
Many customers use a closed-path Analyzer (such as the LI-7000 CO2/H2O Analyzer) for making Eddy Covariance measurements. When employing this method of measurement, the user will typically use a pump downstream of the analyzer. The pump will pull air (typically between 8 and 15 liters per minute) from the sampling site where the sonic anemometer…
Read More...Tags: calibration, closed-path, CO2, eddy covariance, gas analyzer, H2O, LI-7000
Posted in Gas Analyzers, LI-7000, Tech Tips | 1 Comment »
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