Surface temperature inversion in the palsa and pounu fields of northern Finland

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概要

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• A very large surface inversion, which would not have been detected at the official recording height of 2 m above the mire surface, was recorded at the snow surface of an earth hummock in Lapland. The maximum inversion was 35 °C, and the monthly temperature departure was 7.8 °C in December 1992. The characteristics of the surface inversion are compared with conditions during another winter when no long inversion periods occurred. The presence of this surface inversion may explain the formation of new permafrost in pounus, even when official records showed no unusually low temperatures.

著者

• Tabuchi Hiroshi

  Hosei University Department Of Physical Geography 4342 Aihara Machida-shi Tokyo 194-0298 Japan

• Seppala Matti

  Department Of Geosciences And Geography Po Box 64 Helsinki University Fi-00014 Helsinki Finland

関連論文

• Surface temperature inversion in the palsa and pounu fields of northern Finland

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