{"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"}}]}