Analysis of annual variations in ground temperature at an Ottawa site

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DOIResolve DOI: http://doi.org/10.1139/e64-008
AuthorSearch for:
TypeArticle
Journal titleCanadian Journal of Earth Sciences
ISSN0008-4077
Volume1
Issue2
Pages146157; # of pages: 12
Subjectsurface temperature; fourier transformation; heat transfer; years; Basements and foundations
AbstractObservations over a 5-year period at a site at Ottawa showed that the ground temperature had significant Fourier components with period 1/2 and 2 years. The average annual ground temperature and amplitudes of the Fourier components of period 1 year and 1/2 year underwent non-periodic fluctuations of almost 1 C degree at a depth of 10 cm. The amplitude of this fluctuation decreased with depth, and its maximum occurred later in time. There was evidence of a gradual increase in average annual ground temperature amounting to about 0.2 C degree over the 5-year period at the 610-cm depth. The significance of such small temperature changes in areas where the ground temperature is close to 0 degree C is pointed out.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-RP-230
NRC number8107
1578
NPARC number20378738
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Record identifiere10881d8-037b-4553-a1ad-10741c0cd2b8
Record created2012-07-24
Record modified2016-05-09
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