On the Subsurface Cold Air Circulation Observed at Onneyu-Tsutsujiyama, Rubeshibe-cho, Hokkaido
On the Subsurface Cold Air Circulation Observed at Onneyu-Tsutsujiyama, Rubeshibe-cho, Hokkaido
复制标题
北海道留部部町温根汤杜鹃山观测到的地下冷空气环流
DOI：
10.5026/jgeography.83.2_89
复制
发表时间：
1974
影响因子：
3.1
通讯作者：
Toshio Shiboi
中科院分区：
文献类型：
--
作者：
Toshio Shiboi
1972年6月至1973年9月在恩根汤-筒山观测到的气温和地温资料表明，正常地温和冷距平有明显的区别。1972年和1973年研究的北见地区19个冷异常，包括筒山，其特征是严重的冻裂和开裂，产生块体斜坡和门楣壁垒，高山生态环境的异常与周边地区的正常生态环境形成鲜明对比，冷空气在街区内空间循环的低温来源，斜坡被认为是保存零星的多年冻土或其或多或少的腐烂残遗在末次冰期产生的。目前年平均气温和日度值偏高，不可能产生冷源，因此，从断块斜坡和冻裂基岩空间吹出的冷空气量和渗入的暖雨水量越多，冷源衰减率就越大。
The field data on the air and ground temperature at Onneyu-Tsutsujiyama obtained during the period from June, 1972 to September, 1973 show clear distinction between the normal ground and the cold anomaly. The nineteen cold anomalies in Kitami region, including at Tsutsujiyama, studied in 1972 and 1973 are characterized by their severe frost-shattering and-cracking producing block-slopes and protalus ramparts, and the abnormal ecological environment of high mountain level contrasted to the normal surrounding areas.The source of low temperature for the cold air circulating through the spaces within block-slope is believed to be the preserved sporadic permafrost or its more or less decayed relict produced during the last glacial period. The present average annual air temperature and day-degree value are too high to produce it now.Thus, the more the amount of cold air blowing out from the spaces of block-slopes and frost-cracked bedrock and warm rain-water permeating into them is, the decaying rate of cold source is believed higher.