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https://en.wikipedia.org/wiki/Laptev_Sea https://en.wikipedia.org/wiki/Laptev_Sea Does anyone know when 'records began'? I was trying to find out how long the

• Afforess 6y ago
  NSIDC records began in 1979 for the arctic sea ice. Earlier records have to be intuited from proxy sources, such as anecdotal accounts or early photos.
• arethuza 6y ago
  This article refers to a 1981-2010 Median: http://nsidc.org/arcticseaicenews/2020/07/laptev-sea-lapping-up-the-heat-in-june/ http://nsidc.org/arcticseaicenews/2020/07/laptev-sea-lapping... Edit: Another graph goes back to 1979.
• dathinab 6y ago
  The first record in the graph used by the hn-linked article is from 1978. If I'm not wrong this should be the point from which frequent reliable measurements had been taken. (It also roughly matches with my memory about that topic).
• post_below 6y ago
  I was curious too, came across this graphic showing records since they began in 1979 (original source NOAA) https://mobile.twitter.com/ZLabe/status/1318913839568662529/photo/1 https://mobile.twitter.com/ZLabe/status/1318913839568662529/...
• blululu 6y ago
  Satellite records go back to 1979 [https://www.theguardian.com/world/2020/oct/22/alarm-as-arctic-sea-ice-not-yet-freezing-at-latest-date-on-record https://www.theguardian.com/world/2020/oct/22/alarm-as-arcti...], but there appear to be ground based observations from earlier years that corroborate the abnormality of the current year.
• xenocratus 6y ago
  Interesting, the wiki page notes: > The sea has a severe climate with temperatures below 0 °C (32 °F) over more than nine months per year, low water salinity Given the low salinity and below 0 °C for so long, you would expect it to be frozen most of the time.