Reflector heights in the Arctic permafrost areas measured by GNSS interferometric reflectometry

This dataset is about the measurements of reflector height, i.e., the vertical distance between receiver antenna and groud surface, at the GNSS sites in the Arctic permafrost areas. Each data file has four columns. The 1st and 2nd show the time as year and doy, respectively. The 3rd and 4th are the reflector height and its uncertainty, respectively.本数据集针对北极永久冻土区域的全球导航卫星系统（Global Navigation Satellite System，简称GNSS）站点，采集了反射面高度的相关测量数据，其中反射面高度指接收机天线与地表之间的垂直距离。每份数据文件均包含四列数据：第一列与第二列分别代表年份与积日（Day of Year，简称DOY），第三列为反射面高度，第四列为其对应的测量不确定度。