Northern Hemisphere Extra-Tropics 2,000-year Decadal Temperature Reconstruction

SND-ID: ecds0085-1.

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Access to data via


Bo Christiansen

Fredrik Charpentier Ljungquist

Creator/Principal investigator(s)

Bo Christiansen - Danish Meteorological Institute

Fredrik Charpentier Ljungquist - Stockholm University


Multi-proxy temperature reconstruction for the extra-tropical Northern Hemisphere (90-30°N) during the last two millennia based on 30 palaeotemperature proxy records with annual to multi-decadal resolution. Proxy types include historical documentary records, seafloor sediment records, lake sediment records, speleothem records, ice-core records, varved thickness sediment records, tree-ring width and maximum latewood density records. The reconstruction is presented as decadal anomalies in degrees C relative to the 1961-1990 reference period and provided with quantitative error bars.

The dataset can be downloaded from:

A graphical description of the dataset is given at:

Data contains personal data


Method and outcome

Time period(s) investigated

0001 – 1999

Data collection
Geographic coverage
Administrative information
Topic and keywords

Research area

Natural sciences (Standard för svensk indelning av forskningsämnen 2011)

Climatology / meteorology / atmosphere (INSPIRE topic categories)


Ljungqvist, F.C. 2010. A new reconstruction of temperature variability in the extra-tropical Northern Hemisphere during the last two millennia. Geografiska Annaler: Physical Geography, 92A: 339-351, doi:10.1111/j.1468-0459.2010.00399.x

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Contacts for questions about the data

Bo Christiansen

Fredrik Charpentier Ljungquist