WATER: Dataset of spectral reflectance measurements in the Linze station foci experimental area from May to Jul, 2008

The dataset of object spectral was obtained in the Linze station foci experimental area from May 25 to Jul. 11, 2008. The measurement instrument is ASD Spectroradiometer (350～2 500 nm) from BNU and the reference board (40% before Jun. 15 and 20% hereafter). The selected typical objects included maize field, soil, soil with known moisture and desert scrub. The measured quadrates included Wulidun farmland quadrates (May 28 and 30, Jun. 16 and 29 and Jul. 11), the desert transit zone strips (May 28 and 30 and Jun. 16) and Linze station quadrates (May 23 and Jul. 9) Besides, soil samples were collected inside Linze station quadrates on Jun. 24 and 30, 2008. Raw spectral data were archived as binary files, which were recorded daily in detail, and pre-processed data on reflectance and transmittivity were archived as text files (.txt). See the metadata record “WATER: Dataset of setting of the sampling plots and stripes in the Linze station foci experimental area” for more information of the quadrate locations.

本数据集之光谱对象数据，系于二零零八年五月二十五日至七月十一日期间，于临泽站焦点实验区采集所得。测量仪器为北京师范大学研发之 ASD 分光光度计（波长范围350～2,500 nm），参照板于六月十五日前采用40%的反射率，此后则采用20%。所选典型对象包括玉米田、土壤、已知含水量土壤以及沙漠灌木。测量区域包括乌里东农田测量方格（五月二十八日、三十日，六月十六日、二十九日及七月十一日）、沙漠过渡带条带（五月二十八日、三十日及六月十六日）以及临泽站测量方格（五月二十三日及七月九日）。此外，于二零零八年六月二十四日及三十日，在临泽站测量方格内采集土壤样本。原始光谱数据以二进制文件形式存档，每日详细记录，并对反射率和透射率进行预处理，以文本文件（.txt格式）存档。欲了解更多关于测量方格位置的详细信息，请参阅元数据记录“WATER：临泽站焦点实验区采样方格和条带设置数据集”。