{"id":1171,"date":"2022-04-11T14:42:53","date_gmt":"2022-04-11T12:42:53","guid":{"rendered":"https:\/\/mosj.no\/indikator\/climate\/ocean%ef%bf%bc%ef%bf%bc\/havniva\/"},"modified":"2024-05-02T17:36:06","modified_gmt":"2024-05-02T15:36:06","slug":"sea-level","status":"publish","type":"bc_indicator","link":"https:\/\/mosj.no\/en\/indikator\/climate\/ocean\/sea-level\/","title":{"rendered":"Sea level"},"content":{"rendered":"\n

Last updated 23 September 2022<\/p>\n\n\n\n

The sea level reflects both short and long-term changes in the climate of the atmosphere, the cryosphere, the land areas, and the oceans. The global average sea level rises with about 3.5 mm per year due to supply of ice and melt water from land ice (mainly from glaciers and Greenland) and thermal expansion of seawater that has become warmer. In Svalbard, however, the sea level is dominated by uplift of the land since the last ice age (>10\u00a0000 years ago), the Little Ice Age (>100 years ago), and increased glacier melting since the 2000s. The sea level in Svalbard is monitored at Barentsburg (since 1948) and in Ny-\u00c5lesund (since 1973). The long-term sea level at Barentsburg is shown here and compared to that of Troms\u00f8 and Vard\u00f8 in mainland Norway.<\/p>\n\n\n\n

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Photo: Stein \u00d8. Nilsen \/ Norwegian Polar Institute<\/figcaption><\/figure>\n<\/div>\n\n\n
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What is being monitored?<\/h2>\n\n\n\n
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Sea level<\/h3>\n\n\n\n
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