年平均地温

道碴坑中部（0.7m深度处）年平均地温为-1.60℃，比卵石地表相同深度地温低1.4℃。

The annual mean ground temperature at the middle of the closed ballast pit ( at the depth of 0.70m ) is-1.60 ℃, which is 1.4 ℃ lower than that at the same depth beneath the gravel surface .

路堤临界高度存在的年平均地温临界值约为-0.6℃。

The critical value of MAGT for the existence of a critical height is-0.6 ℃ .

长江流域近40年平均地温时空变化分析

Characteristics of Spatial-Temporal Variability of Mean Ground Temperature in Yangtze River Basin in 40 Years

年平均地温作为一个冷源，在下方自下而上对人为上限也起着一定的影响作用。

The mean annual ground temperature as a cold source underneath is also playing a certain role in it from bottom to top .

在连续冻土区内，年平均地温升高0.1～0.2℃。

Annual mean ground temperature has been rised by 0.1 & 0.2 ℃, and thickness of permafrost has not been changed obviously in the continuous permafrost .

研究结果表明：设置护道对人为上限、年平均地温及融化盘等路基地温特征影响有限，但融化深度、年平均地温均表现为增大趋势；

It shows that construction berm has limit effect on the ground temperature characteristics of embankment such as artificial permafrost table , annual mean ground temperature and thaw bowl , however , the thaw depth well increase and annual mean ground temperature will rise .

年平均气温和地温的升温率分别为0.33℃/10a和0.37℃/10a，地温的升高比气温要快。

The ascending rates of annual mean air temperature and 0 cm ground temperature are 0.33 ℃ / 10a and 0.37 ℃ / 10a respectively , and 0 cm ground temperature ascending rate is faster than air temperature ascending rate .

苏丹1/2/4区块位于北纬5°~10°之间，天气炎热，年平均气温高，地温梯度高，给固井施工带来很大的困难。

The blocks 1 / 2 / 4 of Sudan are located between 5 ° and 10 ° of north latitude , where the weather is hot , the yearly average temperature is high , and the geothermal gradient is high , which brings big difficulty to the cementing operation .

年平均最高气温、年平均地温和7月份极端最高气温与年平均气温的多年分布有较大相似性；

The distributing characters of annual maximum temperature , annual average ground temperature and maximum temperature in July were similar to annual average temperature ;