Record details

Title
    Large ground warming in the Canadian Arctic inferred from inversions of temperature logs
Statement of responsibility
    J.A. Majorowicz, W.R. Skinner, Jan Šafanda
Author
    Majorowicz, J. A.
    Skinner, W. R.
    Šafanda, Jan
Language
    anglicky
Source title - serial
    Earth and planetary science letters
Vol./nr.
    Vol. 221, no. 1-4
Pages
    p. 15-25
Year
    2004
Notes
    6 obr.
    Bibliografie na s. 24-25
    il.
    Zkr. název ser.: Earth planet. Sci. Lett.
Classfication no.
    504
    551.3
Conspectus category
    504
    55
Subject group
    globální oteplování
    karotáž teplotní
    permafrost
    prostředí polární
    subrecent
    vodivost tepelná
    vrt
    změna klimatu
Geographical name
    Kanada
Keyword
    Arctic
    Canadian
    Ground
    Inferred
    Inversions
    Large
    Logs
    Temperature
    Warming
Abstract (in english)
   simultaneous functional space inversion applied for the first time to the set of precise temperature logs from 61 wells located between 60° and 82°N in northern Canada shows evidence of large ground surface temperature (GST) warming. These results include highest latitude locations of the well temperature profiles known in the Northern Hemisphere. There is strong evidence that GST warming started in the late-18th century and lasted until the 20th century. Simultaneous inversion of all well temperature data suggests that the cumulative ground surface temperature change over the past five centuries amounts to about 2°C significantly exceeding recent estimates from conventional climate proxies. This large GST warming is also present in other circumpolar locations in the Northern Hemisphere
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    29. 8. 2006
Import date
    8. 8. 2012