An extension of the force-restore method to estimating soil temperature at depth and evaluation for frozen soils under snow

Tomoyoshi Hirota, John W. Pomeroy, Raoul J. Granger, Charles P. Maule

研究成果: Contribution to journalArticle査読

48 被引用数 (Scopus)

抄録

The force-restore method (FRM) was originally developed for estimating diurnal fluctuations in the ground surface temperature. Because of its relatively simple parameterization, it is commonly applied in meteorological and other models for this purpose. Its application to the calculation of deeper soil temperatures, to frozen soils, and to soils under snow covers has heretofore not been possible. This study demonstrates an extension of the FRM that permits accurate estimates of seasonal variation in mean daily deep soil temperature. The extended FRM is shown to provide a lower boundary condition for the heat conduction method, permitting a combination of the two approaches that avoids some limitations of each. The combined approach provides representations of the mean daily soil temperature, soil temperature at depth in frozen soils, and ground surface temperature under a snow cover. Diurnal variations can also be calculated. The extended method and combined approaches are tested using field site measurements collected in cold weather periods in Saskatchewan, Canada, and are found to provide a reasonable representation of measurements.

本文言語英語
ページ(範囲)ACL 11-1-ACL 11-10
ジャーナルJournal of Geophysical Research Atmospheres
107
24
DOI
出版ステータス出版済み - 1 1 2002
外部発表はい

All Science Journal Classification (ASJC) codes

  • 地球物理学
  • 林業
  • 海洋学
  • 水圏科学
  • 生態学
  • 水の科学と技術
  • 土壌科学
  • 地球化学および岩石学
  • 地表過程
  • 大気科学
  • 地球惑星科学(その他)
  • 宇宙惑星科学
  • 古生物学

フィンガープリント

「An extension of the force-restore method to estimating soil temperature at depth and evaluation for frozen soils under snow」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル