Diurnal and seasonal ground temperature variations at Wairakei
Diurnal and seasonal ground temperature variations at Wairakei
复制标题
怀拉基的昼夜和季节性地面温度变化
DOI：
10.1080/00288306.1964.10420166
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发表时间：
1964
影响因子：
2.2
通讯作者：
R. G. Fisher
中科院分区：
文献类型：
--
作者：
G. Dawson;R. G. Fisher
1958年至1962年，在新西兰的怀拉凯，每周对6.6米深处的地面温度进行一次读数。这些读数得到了多点布朗电位计记录的补充，深度为3米，持续了一年多。还提供了五年期间的气温。结果表明，该地区年平均气温为12 ° C，日变化幅度（最大值至最小值）为1.5 ° C，日变化幅度（最小值至最大值）为1.5 ° C。至最小值）结果表明，在30 cm以上的深度，年平均温度小于1 ℃，在6 m以上的深度，年平均温度比年平均温度高3 ℃，年平均热扩散率和年平均热传导率分别为3.5 × 10 - 3cm~2/sec和16 × 10 - 4cal/sec cm~2/sec，年平均温度变化幅度小于1 ℃，年平均温度变化幅度小于1 ℃。浮石土壤的导热系数随含水量而变化，当含水量为73 ½ %（空隙完全充满水）时，导热系数为40 × 10 - 4卡/秒厘米摄氏度，当含水量为73 ½ %（空隙完全充满水）时，导热系数为4 × 10 - 4卡/秒厘米摄氏度。
Abstract Weekly readings of ground temperatures to a depth of 6.6 metres were made at Wairakei, New Zealand, between 1958 and 1962. These readings were supplemented by multi-point Brown potentiometer recordings to a depth of 3 m for more than a year. Air temperatures were also available for the five-year period. Results show that the mean annual air temperature was 12°C; the range of the diurnal variation (from max. to min.) was less than 1 deg C at depths greater than 30 cm; the range of the seasonal variation was less than 1 deg c at depths greater than 6 m; the mean annual temperature at a depth of 1 m was 3 deg c greater than the mean annual air temperature; the mean annual thermal dilfusivity and conductivity were 3.5 × 10-3 cm2/sec and 16 × 10-4 cal/sec cm deg c respectively; the thermal conductivity of the pumice soil varied with moisture content, being 40 × 10-4 cal/sec cm deg c when the water content was 73½% by volume (voids completely filled with water) and 4 × 10-4 cal/sec cm deg c when the wa...