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Data · dataset · 2026

High-precision CO₂ isotopologue spectrometer with a difference-frequency-generation laser source

Listed in National Center for Atmospheric Research

A precision laser spectrometer for the detection of CO₂ isotopes is reported.

Description

The spectrometer measures the fundamental absorption signatures of ¹³C and ¹²C isotopes in CO₂ at 4.32 μm using a tunable mid-IR laser source based on difference-frequency generation. The spectrometer attains a precision of up to 0.02‰ for 150 s of averaging.

An overall accuracy of 0.05‰ was obtained when sampling various calibrated reference gases.

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Provenance · 1 source records, 7 field assertions
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National Center for Atmospheric Research4646b640-c5e5-481d-bcbb-26ced186fa5b13 d agoJSON v1
FieldAssertionExtractorEvidence
concepts[field].local:field:earth-environmentalmapping · data ucar educonnector:data_ucar_edu@1.0.0
concepts[field].local:field:ocean-atmosphericmapping · data ucar educonnector:data_ucar_edu@1.0.0
created_datesource · data ucar educonnector:data_ucar_edu@1.0.0
descriptionsource · data ucar educonnector:data_ucar_edu@1.0.0/notes
publication_datesource · data ucar educonnector:data_ucar_edu@1.0.0
titlesource · data ucar educonnector:data_ucar_edu@1.0.0/title
updated_datesource · data ucar educonnector:data_ucar_edu@1.0.0