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


This data description and associated data have been migrated from the ECDS portal to SND’s research data catalogue. The level of documentation may therefore differ from other data descriptions in the catalogue. For more information about the migration of data from ECDS to SND click here.

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:
Research principal, contributors, and funding

Research principal

Danish Meteorological Institute

Protection and ethical review

Data contains personal data


Method and time period

Time period(s) investigated

1 – 1999

Geographic coverage

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

If you have published anything based on these data, please notify us with a reference to your publication(s). If you are responsible for the catalogue entry, you can update the metadata/data description in DORIS.

Contacts for questions about the data

Bo Christiansen

Fredrik Charpentier Ljungquist

Published: 2019-10-08