自然土壌における温度年変化の推定

島根大学農学部研究報告 Volume 4 Page 159-163 published_at 1970-12-15
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Title
自然土壌における温度年変化の推定
Title
The Annual Temperature Variation of Natural Soil
Title Transcription
シゼン ドジョウ ニオケル オンド ネン ヘンカ ノ スイテイ
Creator
Fujii Koichi
Source Title
島根大学農学部研究報告
Bulletin of the Faculty of Agriculture, Shimane University
Volume 4
Start Page 159
End Page 163
Journal Identifire
ISSN 0370940X
Descriptions
The equation to forecast the annual temperature variation of natural soil is derived from the author's investigation. It is determined on referring the average temperature over the diurnal variation. It is expressed as a harmoinc(2.1).
A procedure is proposed to analyse the harmonic. It is a method to solve the simultaneous equation(2.8).
The solutions are transformed into the amplitude and the phase lag in the harmonic. In the case of the annual variation, the terms higher than third order in the harmonic can be neglected since their effect is small. The special discussion is focused on the first harmonic. Judging from the results of these analysis, the method produces a good approximation.
Language
jpn
Resource Type departmental bulletin paper
Publisher
島根大学農学部
Shimane University, Faculty of Agriculture
Date of Issued 1970-12-15
Access Rights open access
Relation
[NCID] AN00108015