Cryosphere Early Warning
- Reference glaciers (for which we have long-term observations) experienced an average thickness change of over −1.3 metres between October 2021 and October 2022. This loss is much larger than the average of the last decade. The cumulative thickness loss since 1970 amounts to almost 30 m.
- The European Alps smashed records for glacier melt due to a combination of little winter snow. In Switzerland, 6% of the glacier ice volume was lost between 2021 and 2022 – and one third between 2001 and 2022.
- The Greenland Ice Sheet ended with a negative total mass balance for the 26th year in a row.
- Sea ice in Antarctica dropped to 1.92 million km2 on February 25, 2022, the lowest level on record and almost 1 million km2 below the long-term (1991-2020) mean.
- Arctic sea ice in September at the end of the summer melt tied for the 11th lowest monthly minimum ice extent in the satellite record.
- Global mean sea level reaching a new record high for the satellite altimeter record (1993-2022). The rate of global mean sea level rise has doubled between the first decade of the satellite record.
Source: https://public.wmo.int/en/media/press-release/rapid-changes-cryosphere-demand-urgent-coordinated-action
peterdutoit@peterdutoit.com / Peter du Toit
npub144…hurkq
2023-05-29 15:33:42 UTC
Author Public Key
npub144edfrzwx6zw2f8g6e9dmxhgq03tpppqajyewylfld8m4qkg2tjslhurkqPublished at
2023-05-29 15:33:42 UTCEvent JSON
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"content": "Cryosphere Early Warning\n\n- Reference glaciers (for which we have long-term observations) experienced an average thickness change of over −1.3 metres between October 2021 and October 2022. This loss is much larger than the average of the last decade. The cumulative thickness loss since 1970 amounts to almost 30 m. \n\n- The European Alps smashed records for glacier melt due to a combination of little winter snow. In Switzerland, 6% of the glacier ice volume was lost between 2021 and 2022 – and one third between 2001 and 2022.\n\n- The Greenland Ice Sheet ended with a negative total mass balance for the 26th year in a row.\n\n- Sea ice in Antarctica dropped to 1.92 million km2 on February 25, 2022, the lowest level on record and almost 1 million km2 below the long-term (1991-2020) mean.\n\n- Arctic sea ice in September at the end of the summer melt tied for the 11th lowest monthly minimum ice extent in the satellite record.\n\n- Global mean sea level reaching a new record high for the satellite altimeter record (1993-2022). The rate of global mean sea level rise has doubled between the first decade of the satellite record.\n\nSource: https://public.wmo.int/en/media/press-release/rapid-changes-cryosphere-demand-urgent-coordinated-action",
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