Field Measurements and Satellite Remote Sensing of Daily Soil Surface Temperature Variations in the Lower Colorado Desert of California
Field Measurements and Satellite Remote Sensing of Daily Soil Surface Temperature Variations in the Lower Colorado Desert of California
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DOI：
10.3390/cli6040094
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发表时间：
2018-12-01
期刊：
影响因子：
3.7
通讯作者：
Potter, Christopher
中科院分区：
文献类型：
--
作者：
Coppernoll-Houston, Dana;Potter, Christopher
本研究的目的是更好地了解在土壤表面每小时测量的空气温度的日变化之间的关系，与位于加州，东部滨江县的下科罗拉多沙漠的土壤表面的热红外（TIR）发射特性相比。2017年1月，在福特干湖和南部麦考伊山脉的桑迪或岩石沙漠土壤中，部署了50台气温记录仪。从Landsat卫星图像获得的地表温度（LST）与14个不同日期的1米和土壤表面的测量气温进行了比较，直到2017年9月中旬。结果表明，它是可行的，以获得估计温度在土壤表面的每小时的空气温度，记录在1米以上的表面（环境）。该研究进一步将陆地卫星LST与加州南部这些太阳能开发区的空气和表面温度现场测量值密切相关，允许与地面测量值进行相互转换，用于生态系统变化和动物种群生物学研究。
The purpose of this study was to better understand the relationships between diurnal variations of air temperature measured hourly at the soil surface, compared with the thermal infra-red (TIR) emission properties of soil surfaces located in the Lower Colorado Desert of California, eastern Riverside County. Fifty air temperature loggers were deployed in January of 2017 on wooden stakes that were driven into the sandy or rocky desert soils at both Ford Dry Lake and the southern McCoy Mountains wash. The land surface temperature (LST) derived from Landsat satellite images was compared to measured air temperatures at 1 m and at the soil surface on 14 separate dates, until mid-September, 2017. Results showed that it is feasible to derive estimated temperatures at the soil surface from hourly air temperatures, recorded at 1 m above the surface (ambient). The study further correlated Landsat LST closely with site measurements of air and surface temperatures in these solar energy development zones of southern California, allowing inter-conversion with ground-based measurements for use in ecosystem change and animal population biology studies.