{"id":772029,"date":"2023-11-11T04:12:50","date_gmt":"2023-11-11T08:12:50","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=772029"},"modified":"2023-11-11T04:12:50","modified_gmt":"2023-11-11T08:12:50","slug":"scisat-20-years-of-discovery-2","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=772029","title":{"rendered":"SCISAT: 20 years of discovery"},"content":{"rendered":"


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The SCISAT satellite has been orbiting Earth for 20\u00a0years. (Credit: CSA<\/abbr>)<\/p>\n


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The Canadian Space Agency (CSA<\/abbr>) is celebrating the 20th\u00a0anniversary of the launch of SCISAT, an entirely Canadian satellite mission designed to help study the ozone layer and the substances that deplete it. Originally intended to last two\u00a0years, the satellite has far exceeded expectations. It is still operational and performing as it should, and all signs point to continued success.<\/p>\n

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SCISAT measures 70\u00a0different substances in the atmosphere and establishes profiles of temperature and wind speeds. The science teams in charge of data processing are continually improving their methods in order to validate the data and extract even more information from it.<\/p>\n


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More relevant than ever, 20\u00a0years later<\/h2>\n

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Thanks to recent advances, SCISAT has been able to detect a number of hydrofluorocarbons (HFCs<\/abbr>). These powerful greenhouse gases are controlled substances. In addition, SCISAT shed light on a new way in which stratospheric ozone is being destroyed, involving aerosols and chlorine. This discovery was made after the

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Learning more about climate change<\/h2>\n

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SCISAT data on many molecules can be studied to better understand atmospheric chemistry, which is directly related to climate change. By measuring greenhouse gases and aerosols (fine particles), the satellite provides a deeper understanding of the atmosphere’s energy balance, a key source of uncertainty in climate models.<\/p>\n

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To mark the anniversary of SCISAT, scientists, government officials, industry representatives and policy makers will attend an event from


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Explore further<\/h2>\n


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