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主要介绍了黑河流域遥感—地面观测同步试验(Watershed Allied Telemetry Experimental Research,WATER)的第二阶段,即以森林水文过程及中游干旱区生态水文过程为主要目标的中游试验。简要阐述了试验目标与研究内容,重点介绍了航空飞行试验、地面同步试验和加密观测试验的样方布置、数据获取与处理以及研究进展与展望。中游试验的核心研究内容是紧密围绕森林水文及中游干旱区水文的水循环问题开展航空遥感、地面同步观测试验和水文与生态参数加密观测试验,改善蒸散发反演模型和算法,探讨尺度转换方法。其中航空试验使用了微波辐射计、激光雷达(LiDAR)、高光谱成像仪、热红外成像仪和多光谱CCD相机5类传感器,飞行了17个架次和72个小时。
The second phase of the Watershed Allied Telemetry Experimental Research (WATER) is mainly introduced, which is the midstream experiment with the main objective of the forest hydrological process and the eco-hydrological process of the arid region in the Heihe River Basin. The objectives and contents of the experiment are briefly described. The sampling arrangement, data acquisition and processing of the flight test, the ground synchronization test and the encryption observation experiment are mainly introduced. The research progress and prospect are also presented. The core research of the midstream experiment is to carry out aerial remote sensing, ground synchronous observation test and hydrologic and ecological parameter encryption observation test closely around the hydrology of the forest hydrology and the hydrological cycle in the arid region of the middle reaches so as to improve the evapotranspiration inversion model and algorithm and discuss the scale conversion method. Among them, the aeronautical test used 5 types of sensors, such as microwave radiometer, LiDAR, hyperspectral imager, thermal infrared imager and multispectral CCD camera, flying 17 sorties and 72 hours.