%0 Dataset
%T Heihe River Integrated Remote Sensing joint experiment: total station positioning measurement data set of super sample plot of Dayekou guantan forest station (2008)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/fa6e632a-08e9-4e8a-b305-3fc47c884609
%W NCDC
%R 10.12072/ncdc.NIEER.db1918.2022
%A Guo Zhifeng
%A Chen Erxue
%A Liu Qingwang
%K Differential GPS;total station;geodesy / gravity
%X The data set is based on the geodetic coordinate data and other auxiliary data of the corner points of 16 sub plots of super sample plots, the setting points of foundation lidar base stations and the base points of each tree trunk measured by the total station. The data acquisition time of total station is from June 3, 2008 to June 12, 2008. It is divided into two groups. One total station is used for each group, and the models are topcon602 and topcon7002 respectively. The coordinates of 1468 Qinghai spruce trees in the super sample plot were measured, and the vertices of all sub sample plot corners and stake set on the foundation lidar base station were located. These positioning results are the main data content of the data set. In addition, on June 3, 2008, June 4, 2008, June 11, 2008, all stake vertices were located with differential GPS z-max. by manually measuring the height of each stake, the height of the surface under the stake was calculated, and finally the three-dimensional coordinate position of the surface of each tree and the topographic map of the super sample plot were generated. These data form the auxiliary data of the data set.This data set can provide detailed ground observation data for the establishment of real three-dimensional forest scene, the development and correction of various three-dimensional forest remote sensing models, and provide ground verification data for airborne lidar forest parameter extraction