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From: TT
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In the future, SMHI will update climate data every ten years instead of, as now, every thirty years. It is an adaptation to climate change and an international decision of the World Meteorological Organization, reports Swedish Radio Ekot.
– To change only every thirty years, it doesn’t really adapt to the fact that temperature and climate change faster than you thought then, 80-90 years ago when it started, SMHI climatologist Sverker Hellström tells radio.
When SMHI assesses whether, for example, it has been warmer or colder than normal, it compares the data over a thirty-year period called the normal period. The current normal period ends at the end of the year and is expected to show that more months during the last ten years were warmer than during the previous normal period.
– The most obvious (change) is that there will be fewer than normal months warmer and some colder than normal months. At least to start after we change the normal period. There will be some hope there that way, says Sverker Hellström.
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