{"ob_id":3609,"uuid":"4346091e47744ef6b285960369467da0","title":"Atmospheric and Radio Research (CFARR) LI-COR LI-7500 Gas Analyser","abstract":"A LI-COR LI-7500 open path gas analyser has been deployed at the Chilbolton Facility for Atmospheric and Radio Research site in Chilbolton, Hampshire. The instrument operates at infra-red wavelengths measuring the absorption due to carbon dioxide and water vapour at specific wavelengths along its 0.125m measurement path. Internally-stored calibration data are used to convert these absorption values to a mole concentration for each gas. Carbon dioxde and water vapour mole concentrations from this instrument are also provided with sonic anemomenter data at a 20Hz data acquisition rate for eddy covariance calculations in another CFARR dataset. Measurements are taken at 10s intervals.","keywords":"","identifier_set":["https://catalogue.ceda.ac.uk/api/v2/identifiers/2449/?format=json","https://catalogue.ceda.ac.uk/api/v2/identifiers/2450/?format=json"],"instrumentType":"other_instrument_type","subInstrument":[],"responsiblepartyinfo_set":["https://catalogue.ceda.ac.uk/api/v2/rpis/15205/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/15204/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/102053/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/102054/?format=json","https://catalogue.ceda.ac.uk/api/v2/rpis/102055/?format=json"]}