{"id": 1205641, "name": "Mean daily concentration", "unit": "Dobson Units (DU)", "createdAt": "2026-03-02T12:41:06.000Z", "updatedAt": "2026-03-02T12:41:06.000Z", "coverage": "", "timespan": "1979-2025", "datasetId": 7397, "shortUnit": "DU", "columnOrder": 0, "shortName": "min_mean_hole_concentration", "catalogPath": "grapher/climate/2026-03-02/nasa_ozone_hole/nasa_ozone_hole#min_mean_hole_concentration", "descriptionShort": "Minimum of the daily mean ozone (21 September - 16 October) for each year.\n", "type": "float", "datasetName": "Ozone hole area and concentration", "updatePeriodDays": 365, "datasetVersion": "2026-03-02", "nonRedistributable": false, "display": {"unit": "Dobson Units (DU)", "shortUnit": "DU"}, "schemaVersion": 2, "processingLevel": "minor", "presentation": {"topicTagsLinks": ["Ozone Layer"]}, "dimensions": {"years": {"values": [{"id": 1979}, {"id": 1980}, {"id": 1981}, {"id": 1982}, {"id": 1983}, {"id": 1984}, {"id": 1985}, {"id": 1986}, {"id": 1987}, {"id": 1988}, {"id": 1989}, {"id": 1990}, {"id": 1991}, {"id": 1992}, {"id": 1993}, {"id": 1994}, {"id": 1996}, {"id": 1997}, {"id": 1998}, {"id": 1999}, {"id": 2000}, {"id": 2001}, {"id": 2002}, {"id": 2003}, {"id": 2004}, {"id": 2005}, {"id": 2006}, {"id": 2007}, {"id": 2008}, {"id": 2009}, {"id": 2010}, {"id": 2011}, {"id": 2012}, {"id": 2013}, {"id": 2014}, {"id": 2015}, {"id": 2016}, {"id": 2017}, {"id": 2018}, {"id": 2019}, {"id": 2020}, {"id": 2021}, {"id": 2022}, {"id": 2023}, {"id": 2024}, {"id": 2025}]}, "entities": {"values": [{"id": 355, "name": "World", "code": "OWID_WRL"}]}}, "origins": [{"id": 14115, "title": "Ozone hole area and concentration", "description": "Annual maximum and Antarctic stratospheric ozone hole area, resultant from the emission of ozone-depleting substances.\n\nMinimum and mean Southern Hemisphere daily ozone concentrations, measured in Dobson Units (DU).", "producer": "NASA Ozone Watch", "citationFull": "NASA, Goddard Space Flight Center. 2025. NASA Ozone Watch.", "attributionShort": "NASA", "urlMain": "http://ozonewatch.gsfc.nasa.gov/meteorology/annual_data.html", "urlDownload": "https://ozonewatch.gsfc.nasa.gov/statistics/ytd_data.txt", "dateAccessed": "2026-03-02", "datePublished": "2025-10-20", "license": {"url": "https://science.data.nasa.gov/license/", "name": "CC BY"}}]}