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首页> 外文期刊>International journal of soil science >Response of Topsoil Features to the Seasonal Changes of Land Surface Temperature in the Arid Environment
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Response of Topsoil Features to the Seasonal Changes of Land Surface Temperature in the Arid Environment

机译：干旱环境下表土特征对地表温度季节性变化的响应

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Thermal IR data possess valuable information; especially in the expression of the Land Surface Temperature (LST). The present research aims to study the response of the topsoil features to the seasonal changes of land surface temperature in arid environment by using thermal IR data. Wadi El Natrun depression occupy a small area to the west of the Nile Delta, it includes different types of landforms and soils, so it was chosen for this study. Digital Elevation Model (DEM) and satellite image were used in a Geographic Information System (GIS) to delineate the main landforms. Field work has been done in order to check the accuracy of the landform units, describe the land surface features, measuring the LST and collect soil samples. It is found that the main features of the topsoil in the study area are cultivation, carbonate deposits, aeolian deposits, alluvial deposits, water bodies, wetland, gypsic deposits and sabkhas. The thermal bands of Landsat ETM+ were used to elaborate the land surface temperature at 3 dates during the year 2009. The correlation between top-soil features and LST was implemented. Accordingly the response of these features to the seasonal changes of LST was discussed in detail. The analyses of seasonal changes of LST provide valuable information about topsoil features before land surveying work.
机译：热红外数据拥有宝贵的信息;特别是在陆地表面温度（LST）的表达中。本研究旨在利用热红外数据研究干旱环境中表土特征对地表温度季节性变化的响应。 Wadi El Natrun洼地位于尼罗河三角洲以西的一小块土地上，它包括不同类型的地貌和土壤，因此本研究选择了它。在地理信息系统（GIS）中使用了数字高程模型（DEM）和卫星图像来描绘主要地貌。为了检查地貌单位的准确性，描述地表特征，测量LST并收集土壤样本，已经进行了野外工作。发现该研究区表土的主要特征是耕作，碳酸盐矿床，风沙矿床，冲积床，水体，湿地，石膏矿床和sabkhas。 2009年，使用Landsat ETM +的热带详细说明了3个日期的地表温度。实现了表层土壤特征与LST之间的相关性。因此，详细讨论了这些特征对LST季节变化的响应。 LST季节变化的分析为土地测量工作之前的表土特征提供了有价值的信息。

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