大地地区地温气象资料分析

基于辽宁CIMISS获取大连气象站2004-2017年浅层(5cm 、10cm、15cm、20cm)土层温度,根据月值获取季值和年值,对年、季、月进行数值统计分析,获取相应的特征规律。结果表明：大连气象站近14年不同深度土层温度变化规律如下：年分布规律先降低后升高确实,2010年是拐点年,且不同深度土层浅层地温变化趋势一致。月分布变化规律如下：月变化跟个月太阳辐射强度有很大关系,具体1-7逐月升高,8-12月逐月降低过程趋势,土层深度跟太阳辐射呈负相关性,各月温度变化率在5度左右。季分布变化规律如下：季变化跟月变化符合一致,土层深度和土层温度在冬季、春季和夏季是呈负相关,秋季呈正相关。各个季节均值和季节太阳辐射强度一致,夏季辐射强度最大,所以平均地温值最高,冬季辐射强度最低,所以平均地温值最低。

Analysis of ground temperature meteorological data in Dalian

Based on Liaoning cimiss, the temperature of shallow (5cm, 10cm, 15cm and 20cm) soil layer at Dalian meteorological station from 2004 to 2017 is obtained. The seasonal and annual values are obtained according to the monthly values. The annual, seasonal and monthly values are statistically analyzed to obtain the corresponding characteristic laws. The results show that the variation law of soil temperature at different depths in Dalian meteorological station in recent 14 years is as follows: the annual distribution law decreases first and then increases. Indeed, 2010 is an inflection point year, and the variation trend of shallow soil temperature at different depths is the same. The variation law of monthly distribution is as follows: the monthly variation is closely related to the solar radiation intensity of each month. Specifically, it increases month by month from January to July and decreases month by month from August to December. The soil depth is negatively correlated with solar radiation, and the temperature change rate of each month is about 5 degrees. The seasonal distribution change law is as follows: the seasonal change is consistent with the monthly change. The soil depth and soil temperature are negatively correlated in winter, spring and summer, and positively correlated in autumn. The mean value of each season is consistent with the seasonal solar radiation intensity. The radiation intensity is the largest in summer, so the average ground temperature value is the highest, and the radiation intensity is the lowest in winter, so the average ground temperature value is the lowest.