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- b64520ad-868a-4382-babf-4a2dcee18b2c definition "Traditional techniques for measuring greenhouse gas inventories in the well-mixed atmosphere have required extremely dry sample gas streams (dew point < -60°C) to achieve the inter-laboratory comparability standard set forth by the WMO for carbon dioxide (100 ppb) and methane (2ppb). Drying the sample gas to low water vapor levels can be both expensive and prone to problems, especially at remote sites where access is difficult. The Picarro G1301 three-species greenhouse gas analyzers for the first time permit accurate and precise greenhouse gas measurements that can meet the WMO inter-laboratory comparability standard without drying the sample gas. Below, we present direct measurements of t he water vapor correction factors that, when applied to the G1301 data, enable drygas mixing ratio measurements without the need for low-level drying or frequent calibration. In addition, we confirm these results with careful spectroscopic analysis, and we estimate the uncertainties remaining in the measurement of t he drygas mixing ratios." @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c id "1656095" @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c path_id 3d25724b-832f-4a61-b0b2-4f2ccecdba94 @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c path_id b2140059-b3ca-415c-b0a7-3e142783ffe8 @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c path_id ff564c87-78f2-47eb-a857-a4bdc0a71ae5 @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c path_label "Chemical Meters/Analyzers" @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c path_label "In Situ/Laboratory Instruments" @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c path_label "Instruments" @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c prefLabel "Picarro G1301-m" @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c reference "https://www.picarro.com/support/library/documents/accurate_greenhouse_gas_measurements_in_humid_gas_streams_using_the_g1301" @default.
- b64520ad-868a-4382-babf-4a2dcee18b2c tag "Instruments" @default.