{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:44:25Z","timestamp":1760060665664,"version":"build-2065373602"},"reference-count":31,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2025,9,22]],"date-time":"2025-09-22T00:00:00Z","timestamp":1758499200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"AIR0000032\u2013ITINERIS, the Italian Integrated Environmental Research Infrastructures System","award":["D.D. n. 130\/2022-CUP B53C22002150006"],"award-info":[{"award-number":["D.D. n. 130\/2022-CUP B53C22002150006"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Data"],"abstract":"<jats:p>Accessible datasets of greenhouse gas (GHG) concentrations help define long-term trends on a global scale and also provide significant information on the characteristic variability of emission sources and sinks. The integration of stable carbon isotope measurements of carbon dioxide (CO2) and methane (CH4) can significantly increase the accuracy and reliability of source apportionment efforts, due to the isotopic fractionation processes and fingerprint that characterize each mechanism. Via isotopic parameters such as \u03b413C, the ratio of 13C to 12C compared to an international standard (VPDB, Vienna Pee Dee Belemnite), it is in fact possible to discriminate, for example, between thermogenic and microbial sources of CH4, thus ensuring a more detailed understanding of global balances. A number of stations within the Italian consortium of atmospheric observation sites have been equipped with Picarro G2201-i CRDS (Cavity Ring-Down Spectrometry) analyzers capable of measuring the stable carbon isotopic ratios of CO2 and CH4, reported as \u03b413C-CO2 and \u03b413C-CO2, respectively. The first dataset (Lamezia Terme, Calabria region) of the consortium resulting from these measurements was released, and a second dataset (Potenza, Basilicata region) from another station was also released, relying on the same format to effectively standardize these new types of datasets. This work provides details on the data, format, and methods used to generate these products and describes a framework for the format and processing of similar data products based on CRD spectroscopy.<\/jats:p>","DOI":"10.3390\/data10090150","type":"journal-article","created":{"date-parts":[[2025,9,22]],"date-time":"2025-09-22T12:08:03Z","timestamp":1758542883000},"page":"150","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Framework for the Datasets of CRDS CO2 and CH4 Stable Carbon Isotope Measurements in the Atmosphere"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-6015-6440","authenticated-orcid":false,"given":"Francesco","family":"D\u2019Amico","sequence":"first","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"},{"name":"Department of Biology, Ecology and Earth Sciences, University of Calabria, Via Pietro Bucci Cubo 15B, I-87036 Rende, Cosenza, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3964-7824","authenticated-orcid":false,"given":"Ivano","family":"Ammoscato","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-8425-8387","authenticated-orcid":false,"given":"Giorgia","family":"De Benedetto","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-7321-2805","authenticated-orcid":false,"given":"Luana","family":"Malacaria","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2262-3607","authenticated-orcid":false,"given":"Salvatore","family":"Sinopoli","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1916-0552","authenticated-orcid":false,"given":"Teresa","family":"Lo Feudo","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5263-5134","authenticated-orcid":false,"given":"Daniel","family":"Gull\u00ec","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8233-0040","authenticated-orcid":false,"given":"Claudia Roberta","family":"Calidonna","sequence":"additional","affiliation":[{"name":"Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Area Industriale Comparto 15, I-88046 Lamezia Terme, Catanzaro, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,9,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Zazzeri, G., Lowry, D., Fisher, R.E., France, J.L., Lanoisell\u00e9, M., Grimmond, C.S.B., and Nisbet, E.G. 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