连云港地区草温、地温和气温变化特征分析-气象研究与应用

文章信息/Info

Title:: Characteristic Analysis on Grass Surface Temperature, Ground Temperature and Temperature Variation in Lianyungang

Author(s):: Hao Ling¹; Gu Chun-lei²; Zhao liang¹; 1. Lianyungang Meteorological Service, Lian Yungang 222006;
2. Ganyu Meteorological Service, Lian yungang

Keywords:: grass temperature; 0cm ground temperature; temperature; variation temperature

摘要:: 利用连云港赣榆区气象观测站2014年逐时的草面温度、0 cm地面温度和气温观测数据,分析讨论了该地区三要素的月平均值、月极端最高、最低值特征以及草面温度与0 cm地面温度、气温在不同气象条件下三者之间的相互关系。结果表明:从全年变化来看,逐月平均值0 cm地温 > 草温 > 气温;逐月极端最高值0 cm地温 > 草温 > 气温;逐月极端最低值草温 < 0 cm地温 < 气温。在晴天和阴天多云状况下草温与0 cm地温、气温呈明显的正相关,阴天较晴天变化幅度小;阴雨天气时白天草温与气温明显下降,而0 cm地面温度降幅平缓且温度较高;有降雪时0 cm地面温度高于草温和气温,且变化较为平缓。用草温比用0 cm地温和气温能更好地判定霜的出现。

Abstract:: Based on the grass surface temperature, 0 cm ground temperature and the temperature of meteorological stations in Ganyu region of Lianyungang of 2014, the characteristics of monthly average, extreme highest, lowest of surface temperature 0 cm ground temperature, and air temperature and the mutual relations among these three elements of under different meteorological conditions were discussed. The results show that throughout the year, monthly average temperature:0 cm ground temperature > grass surface temperature > air temperature; monthly extreme high temperature:0 cm ground temperature > grass surface temperature > air temperature; monthly extreme low temperature:grass surface temperature < 0 cm ground temperature < air temperatures. In the sunny and cloudy conditions, there is significantly positive correlation among grass temperature, 0 cm ground temperature and the temperature with smaller variations in cloudy days; During the day of rainy days, grass surface temperature and air temperature show a dramatic decline while the 0 cm ground temperature gently fall still keeping in higher temperature; When snowy days, 0 cm grass ground temperature changing mildly is higher than the other two. Consequently, it is better to choose grass surface temperature for the frost.