Laboratory spectral reflectance measurements of pine/spruce twigs and snow

The dataset contains laboratory spectral reflectance (350-2500 nm) measurements of natural snow samples and pine and spruce twigs measured with an ASD Field Spec Pro JR spectroradiometer. For snow types sampled, in situ snow measurements are accompanied with the reflectance data. The measurements have been conducted at the premises of the Arctic Space Centre of the Finnish Meteorological Institute, Sodankylä, Finland (N67.361833, E26.634154, WGS84). The data are structured as CSV-files. Snow specific surface area (SSA) information and photographs of the snow samples are available for part of the measured snow types and are organized into separate folders. For this version a data example plot (Data_example_laboratory.png) was added to have a quick visualisation of the sort of the data available. For further information contact Henna-Reetta Hannula ([e-mail]) or Kirsikka Heinilä ([e-mail])本数据集包含采用ASD Field Spec Pro JR野外光谱辐射计（ASD Field Spec Pro JR spectroradiometer）测得的天然雪样、松枝及云杉枝的实验室光谱反射率（350~2500 nm）数据。针对所采样的雪样类型，野外原位雪层测量数据与其反射率数据配套提供。本次测量工作于芬兰索丹屈莱（Sodankylä）市芬兰气象研究所北极空间中心场地开展，地理坐标为N67.361833、E26.634154，采用WGS84坐标系。数据以CSV文件格式组织存储。部分被测雪样类型附带雪比表面积（Specific Surface Area, SSA）信息及雪样照片，相关数据被整理至独立文件夹中。本版本数据集新增了数据示例绘图文件Data_example_laboratory.png，以便快速直观了解可用数据的类型与特征。如需进一步信息，请联系Henna-Reetta Hannula（邮箱：[e-mail]）或Kirsikka Heinilä（邮箱：[e-mail]）