Sökning: L773:1814 9324 OR L773:1814 9332
> (2010-2014) >
Northern Hemisphere...
Northern Hemisphere temperature patterns in the last 12 centuries
-
- Charpentier Ljungqvist, Fredrik, 1982- (författare)
- Stockholms universitet,Historiska institutionen
-
- Krusic, Paul J. (författare)
- Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)
-
- Brattström, Gudrun (författare)
- Stockholms universitet,Matematiska institutionen
-
visa fler...
-
- Sundqvist, Hanna S. (författare)
- Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)
-
visa färre...
-
(creator_code:org_t)
- 2012-02-03
- 2012
- Engelska.
-
Ingår i: Climate of the Past. - : Copernicus GmbH. - 1814-9324 .- 1814-9332. ; 8, s. 227-249
- Relaterad länk:
-
https://doi.org/10.5...
-
visa fler...
-
http://www.clim-past...
-
https://su.diva-port... (primary) (Raw object)
-
https://www.clim-pas...
-
https://urn.kb.se/re...
-
https://doi.org/10.5...
-
visa färre...
Abstract
Ämnesord
Stäng
- We analyse the spatio-temporal patterns of temperature variability over Northern Hemisphere land areas, on centennial time-scales, for the last 12 centuries using an unprecedentedly large network of temperature-sensitive proxy records. Geographically widespread positive temperature anomalies are observed from the 9th to 11th centuries, similar in extent and magnitude to the 20th century mean. A dominance of widespread negative anomalies is observed from the 16th to 18th centuries. Though we find the amplitude and spatial extent of the 20th century warming is within the range of natural variability over the last 12 centuries, we also find that the rate of warming from the 19th to the 20th century is unprecedented in the context of the last 1200 yr. The positive Northern Hemisphere temperature change from the 19th to the 20th century is clearly the largest between any two consecutive centuries in the past 12 centuries. These results remain robust even after removing a significant number of proxies in various tests of robustness showing that the choice of proxies has no particular influence on the overall conclusions of this study.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Nyckelord
- Temperature reconstruction
- spatio-temporal patterns of temperature variability
- Little Ice Age
- Medieval Warm Period
- climate change
- global warming
- Physical Geography
- naturgeografi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas