A new reconstruction of temperature variability in the extra-tropical Northern Hemisphere during the last two millennia

Auteur(s) et Affiliation(s)



Description :
A new temperature reconstruction with decadal resolution, covering the last two millennia, is presented for the extratropical Northern Hemisphere (90–30°N), utilizing many palaeo-temperature proxy records never previously included in any large-scale temperature reconstruction. The amplitude of the reconstructed temperature variability on centennial time-scales exceeds 0.6°C. This reconstruction is the first to show a distinct Roman Warm Period c. ad 1–300, reaching up to the 1961–1990 mean temperature level, followed by the Dark Age Cold Period c. ad 300–800. The Medieval Warm Period is seen c. ad 800–1300 and the Little Ice Age is clearly visible c. ad 1300–1900, followed by a rapid temperature increase in the twentieth century.


Type de document :
Article de périodique

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2010, vol. 92, n°. 3, p. 339-351, nombre de pages : 13, Références bibliographiques : 3 p.

Date :
2010

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi