Designing Buildings: Created page with "[https://www.cambridge.org/core/books/climate-change-2021-the-physical-science-basis/annex-vii-glossary/058768DADC00B52E2ED3381D0259B4E0 Climate Change 2021 – The Physical Scie..."

2025-04-23T07:16:14Z

Created page with "[https://www.cambridge.org/core/books/climate-change-2021-the-physical-science-basis/annex-vii-glossary/058768DADC00B52E2ED3381D0259B4E0 Climate Change 2021 – The Physical Scie..."

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[https://www.cambridge.org/core/books/climate-change-2021-the-physical-science-basis/annex-vii-glossary/058768DADC00B52E2ED3381D0259B4E0 Climate Change 2021 – The Physical Science Basis, Annex VII: Glossary], written by the Intergovernmental Panel on Climate Change (IPCC) and published by Cambridge University Press in 2023, defines the Dobson unit (DU) as: ‘A unit to measure the total amount of ozone in a vertical column above the Earth’s surface (total column ozone). The number of Dobson units is the thickness in units of 10^–5 m that the ozone column would occupy if compressed into a layer of uniform density at a pressure of 1013 hPa and a temperature of 0°C. One DU corresponds to a column of ozone containing 2.69 × 10^20 molecules per square metre. A typical value for the amount of ozone in a column of the Earth’s atmosphere, although very variable, is 300 DU.’

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[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]

Dobson unit - Revision history

Designing Buildings: Created page with "[https://www.cambridge.org/core/books/climate-change-2021-the-physical-science-basis/annex-vii-glossary/058768DADC00B52E2ED3381D0259B4E0 Climate Change 2021 – The Physical Scie..."