GROUND TEMPERATURE HISTORIES FOR CENTRAL AND EASTERN CANADA FROM GEOTHERMAL MEASUREMENTS - LITTLE ICE-AGE SIGNATURE

被引：56

作者：

BELTRAMI, H ^{[1
]}

MARESCHAL, JC ^{[1
]}

机构：

[1] INST PHYS GLOBE,DYNAM SYST GEOL LAB,F-75252 PARIS 5,FRANCE

来源：

GEOPHYSICAL RESEARCH LETTERS | 1992年 / 19卷 / 07期

关键词：

D O I：

10.1029/92GL00671

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Deep borehole temperature profiles have been analyzed to determine ground temperature histories in central and eastern Canada. Clear signs of a cold period between 1500 and 1800 A.D., corresponding to the little ice age, have been found. A warming trend after 1800 A.D. was detected throughout eastern and central Canada. Temperature profiles from western Ontario are consistent and were inverted simultaneously to yield a regional ground temperature history. The recent warming appears to be correlated with the increase of atmospheric CO2 reported for a Greenland ice core.

引用

页码：689 / 692

页数：4

共 23 条

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