若尔盖湿地近地表气象要素分析(4)

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利用2015年夏季若尔盖地区观测数据对若尔盖湿地区域近地表气温、土壤温度、近地表相对湿度、土壤湿度、风向、近地表辐射进行了分析。研究发现，近地表及地表温度日较差不稳定，土壤温度的日较差比近地表气温的日较差要小，土壤较深层的温度极值出现时段相较于浅层有明显滞后。相对湿度有明显的日变化，于日出前达到最大值，太阳高度角最高时达到最小值，深层的变化时段比浅层滞后。若尔盖地区7～9月风向以南风为主。此外，向下短波辐射与向上短波辐射日变化呈单峰型，且在数值上明显大于向上短波辐射，向下长波辐射和向上长波辐射的月变化趋势基本相同。此外，若尔盖地区以潜热输送为主要能量输送路径。

The near-surface air temperature,soil temperature,near-surface relative humidity,soil moisture,wind direction and near-surface radiation of the Zoige wetland area were analyzed using the observation data of the Zoige area in the summer of 2015.The study found that the near-surface and surface temperature are relatively unstable,the daily temperature difference of the soil temperature is smaller than that of the near-surface temperature,and the temperature extreme value of the deeper layer of the soil has a significant lag compared with the shallow is a significant daily variation in relative humidity,reaching a maximum before sunrise,reaching a minimum at the highest sun angle,and a deep change in the deep wind direction of the Zoige region is mainly southerly from July to addition,the diurnal variation of the downward short-wave radiation and the upward short-wave radiation is unimodal,and is numerically significantly larger than the upward short-wave monthly trend of the downward long-wave radiation and the upward long-wave radiation is basically the same.In addition,the Zoige area uses latent heat transport as the main energy transport path.

文章来源：《中国辐射卫生》 网址: http://www.zgfswszz.cn/qikandaodu/2021/0303/442.html