WEl Wen-shouc, DONG Guang-rong. Radiant Heat Transportation at the Interface of Desert——Taking Gurbantunggut desert for example[J]. Acta Sedimentologica Sinica, 1999, 17(S1): 839-845.
| Citation:
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WEl Wen-shouc, DONG Guang-rong. Radiant Heat Transportation at the Interface of Desert——Taking Gurbantunggut desert for example[J]. Acta Sedimentologica Sinica, 1999, 17(S1): 839-845.
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Radiant Heat Transportation at the Interface of Desert——Taking Gurbantunggut desert for example
- 1.
Xinjing Insitute or Ecolopy & Geography,Chinese Academy of Scieuces, Urumqi 830011;
- 2.
Lanzhou Institutt of Glaciology & Geocryology, Chinese Acadeny of Sciences Lanzhou 730000;
- 3.
Lanzhou Institutt of Research,China Acadeny of Sciences Lanzhou 730000
- Received Date: 1999-04-06
- Publish Date:
1999-12-10
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Abstract
The radiant heat transportation at desert interface includes solar radiant heat flux,long wave radiant heat flux and desert surface heat flux. Based on the natural and climatic conditions of Gurbantunggut Desert,the author has measured and analyzed the heat budget on different underlying areas .The following results are mainly obtained: (1) The heat transportation on sand-shifting desert and on sand-fixed desert is different limited by individual surface feature,sand layer nature and air temperature etc. (2)The reflectivity and the long wave radiation on sand-shifting area are all larger than that on sand-fixed area. (3)The heat flux through sand layer increases with the layer going down;while heat transportation value changes with an inverse trend. (4)The heat transportation from earth to atmosphere on different desert types are in forms of sensible heat at daytime and latent heat at night which constitutes special response and feedback transfer process to solar radiant heat on desert area. In the meantime,the author has analyzed the changing properties of physical climate parameters in desert region according to measured data and heat balance equation of earth surface;and modeled the heat transfer process at earth-atmosphere interface.
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