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While ongoing research focuses on effective correction methods, the evaluation of these methods requires reliable and well-documented datasets. However, only a few drift datasets are available, some of which lack sufficient experimental detail or are outdated. This motivated us to introduce a new long-term drift dataset. It has been collected over 12 months using a commercial electronic nose, which is based on 62-metal oxide sensors. The measurements were conducted under controlled experimental conditions with three analytes (diacetyl, 2-phenylethanol, and ethanol) in different concentrations. The dataset consists of 700 time-series recordings, for which we provide both the raw data and a set of pre-extracted features. The data can support the development, evaluation, and comparison of methods for feature extraction and selection, as well as drift detection and compensation. By providing a comprehensive, well-documented dataset, we aim to advance research on sensor drift in electronic nose systems.<\/jats:p>","DOI":"10.1038\/s41597-025-05993-8","type":"journal-article","created":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T12:43:59Z","timestamp":1759927439000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["Long-term drift behavior in metal oxide gas sensor arrays: a one-year dataset from an electronic nose"],"prefix":"10.1038","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-1724-0736","authenticated-orcid":false,"given":"Julius","family":"W\u00f6rner","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonas","family":"Eimler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7920-0595","authenticated-orcid":false,"given":"Miriam","family":"Pein-Hackelbusch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,10,8]]},"reference":[{"key":"5993_CR1","doi-asserted-by":"publisher","unstructured":"Liu, T. et al. 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All analyses and interpretations presented in this work were conducted independently and without any financial interests or personal relationships which could be regarded as factors influencing the work.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"1628"}}