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Instrument: LI-COR LI-7000 Gas Analyzer

Acronym: LI-COR LI-7000

External Identifier: skos:exactMatch: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0705/

Description

The LI-7000 gas analyzer is a differential, single source, non-dispersive, infrared gas analyzer. It has two solid state detectors, one each for CO2 and H2O, filters at 4.255 microns and 2.595 microns respectively. CO2 is measured in the range 0-3000ppm, with an accuracy of 1 percent nominally. H2O is measured in the range 0-60 mmol per mol, with an accuracy of one 1 percent.

Datasets (17)

Dataset Name	PI-Supplied Description	PI-Supplied Name
Seawater biogeochemistry inshore and offshore the Bermuda coral reef from the Bermuda coral reef platform and adjacent Sargasso Sea extending to Bermuda Atlantic Time Series-station from 2014-2018	AIRICA (Marianda, Inc) and a Li-Cor 7000 as the detector for DIC analyses. Accuracy and precision was typically	Li-Cor 7000
Surface seawater carbonate chemistry parameters from the Bermuda coral reef platform timeseries, 2007-2012 (BEACON project)	DIC was analyzed coulometrically using a UIC CM5011 CO2 coulometer combined with a VINDTA3C (Marianda Inc) or SOMMA system, alternatively based on infrared absorption using an AIRICA (Marianda, Inc) and a Li-Cor 7000 as the detector.	Li-Cor 7000
Carbon chemistry (TCO2, TALK, POC, PON, dC13_POM, dN15_POM) from CTD bottles from RVIB Nathaniel B. Palmer cruise NBP1302 in the Ross Sea, Antarctica from February to March 2013 (TRACERS project)	A volume of 1.25 mL of sample was acidified using an automated custom-built injection and bubble stripping system coupled to an infrared gas analyzer (LICOR LI7000)	modified LICOR LI7000
Dissolved inorganic carbon from R/V Thomas G. Thompson and R/V Kilo Moana cruises TN277, KM1301 in the Eastern North Pacific Ocean from 2012-2013 (POWOW project)	Released CO2 was quantified using a Li-Cor 7000 CO2 detector.	LI-COR LI-7000 Gas Analyzer
Dissolved and particulate carbon and nitrogen data from seawater collected during CCGS John P. Tully cruises in the northeast Pacific Ocean from Vancouver Island to Station P from 2018 to 2020	The evolved CO2 gas is delivered to a LiCOR 7000 Nondispersive Infrared gas analyzer for measurement. The LiCOR 7000 is calibrated annually using WMO traceable standard gases containing known CO2 mole fractions. The average accuracy of the instrument relative to CRMs is better than 1 μmol per kilogram.	LiCOR 7000 Nondispersive Infrared gas analyzer
Dissolved inorganic carbon (DIC) from Niskin bottle samples from the PICO time-series station (34.7181 deg N, 76.6707 deg W) from 2010-2012 (PICO project)	DIC was measured on mercuric chloride poisoned samples by acidification and subsequent quantification of released CO2 using a Li-Cor 7000 CO2 detector.	LI-COR LI-7000 Gas Analyzer
Grazing experiment 5: Carbonate chemistry data for low-high pCO2 acclimated Rhodomonas sp. cultures, 2011-2016 (E Hux Response to pCO2 project)		LI-7000 CO2/H2O Analyzer
Grazing experiment 5: Carbonate chemistry of Rhodomonas for low-high pCO2 long term experiment treatments, 2011-2016 (E Hux Response to pCO2 project)		LI-7000 CO2/H2O Analyzer
Grazing experiment 6: Carbonate chemistry data for low-high pCO2 acclimated Rhodomonas sp. cultures and long term grazing treatments (E Hux Response to pCO2 project)		LI-7000 CO2/H2O Analyzer
Grazing experiment 7: Carbonate chemistry data for low-high pCO2 acclimated Rhodomonas sp. cultures and long term grazing treatments (E Hux Response to pCO2 project)		LI-7000 CO2/H2O Analyzer
Dissolved Inorganic Carbon measured in situ over depth in the kelp forest (36° 37.3’ N, 121° 54.1’ W) recorded in July 2018.	Li-COR 7000 infrared gas analyzer	Li-COR 7000 infrared gas analyzer
Hydrographic measurements from Niskin bottle samples from RVIB Nathaniel B. Palmer cruises in the Ross Sea Southern Ocean (CORSACS project)	Samples for Carbon analysis were collected in accordance with JGOFS protocols (Dickson and Goyet 1994) and were measured by infrared absorption analysis of CO2 in a nitrogen gas stream using an automated injection system connected to an infrared gas analyzer (LI-COR LI7000).	LI-COR LI-7000 Gas Analyzer
Discrete bottle sample measurements for carbonate chemistry, organic alkalinity and organic carbon from samples collected in Waquoit Bay and Vineyard Sound, MA in 2016		LI-COR 7000 infrared analyzer
Discrete bottle sample measurements for carbonate chemistry from samples collected in the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA from 2012 to 2015		LI-COR 7000 infrared analyzer
Underway pCO2 from the R/V Pelican cruise GOM_UW_1704 conducted in the Northern Gulf of Mexico in April 2017.	Underway pCO2 was measured inline by an automated system (Apollo Scitech) with a Li-7000 (LICOR, Inc.) non-dispersive infrared detector .	a Li-7000 (LICOR, Inc.) non-dispersive infrared detector
Water column data collected during Dataflow cruises in the lower York River Estuary, VA during intense summer algal blooms in 2020-21	DIC samples were analyzed using an Apollo SciTech AS-C3 analyzer coupled to a LI-COR LI-7000 infrared gas analyzer.	LI-COR LI-7000 infrared gas analyzer
Watershed concentrations of dissolved inorganic carbon, dissolved organic carbon, and particulate organic carbon in the York River Estuary sampled in 2019-2021.	DIC concentrations were measured on an Apollo SciTech AS-C3 analyzer coupled to a LI-COR LI-7000 infrared gas analyzer.	LI-COR LI-7000