A multi-layer heat balance model of snow cover adaptable to intensely cold regions.

• YAMAZAKI Takeshi

  Geophysical Institute, Tohoku University

Bibliographic Information

Other Title

• 厳寒地に適用可能な積雪多層熱収支モデル
• ゲンカンチ ニ テキヨウ カノウ ナ セキセツ タソウ ネツ シュウシ モデル

Abstract

A one-dimensional model has been developed to simulate temporal change of snow cover in intensely cold regions. This model can calculate the profiles of snow temperature, density and liquid water content using meteorological data inputs. The model structure is simple having snow layers with the same thickness; the treatment of liquid water flow and albedo is also very simple. Effective temperature gradient is introduced to treat the depth hoar which is frequently observed in cold regions, thus we can consider the change of thermal conductivity and compactive viscosity coefficient by depth hoar formation. The ratio of snow to rain in the precipitation is given as a function of wet-bulb temperature. The model was validated for the snow cover at Sapporo and AMeDAS (Automated Meteorological Data Acquisition System)stations in east Hokkaido. We simulated the snow depth, water equivalent of snow, and profiles of snow temperature and density at Sapporo, and depth hoar formation in east Hokkaido.

Journal

• Journal of the Japanese Society of Snow and Ice

  Journal of the Japanese Society of Snow and Ice 60 (2), 131-141, 1998

  The Japanese Society of Snow and Ice

Keywords

• snow cover
• heat balance
• snow-cover model
• depth hoar
• prediction of precipitation type

Details

• CRID: 1390282681436871936
• NII Article ID: 10002383980
• NII Book ID: AN00131221
• DOI: 10.5331/seppyo.60.131
• ISSN: 18836267
• ISSN: 03731006
• ISSN: http://id.crossref.org/issn/03731006
• NDL BIB ID: 4423070
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4423070
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed