地表蒸散遥感监测的进展及问题

Advances and Questions on Land Surface Evapotranspiration by Remote Sensing

利用遥感技术监测土壤水分和作物蒸散具有快速、宏观、方便等特点,国内外学者围绕该领域在理论和技术方法上开展了大量研究。本文查阅大量文献,较详细地分析了地表蒸散遥感监测技术方法研究的有关进展和问题,供从事地表蒸散遥感监测的相关工作者参考。分析结果表明,在部分植被覆盖条件下,双层模型的估算精确度明显高于单层模型,但双层模型中引入较多的参数增加了其运算难度,有待进一步研究。

Because the remote sensing in monitoring the soil moisture and the crop evapotranspiration are of fleetness , macroscopic and convenient , the domestic and abroad scholars have studied great quantity researches in theory and technology field. This article analyse some research progresses and questions on land surface evapotranspiration by remote sensing, which can help the related workers. The result indicate covering in part vegetation, the estimate precision of two - layer model overtops the one - layer model obviously, but the two - layer model inject some parameters which increase the difficulty of arithmetic , so the two -layer model needs further study.