TY  - Data
T1  - Heihe River Integrated Remote Sensing joint experiment: Landsat TM ground synchronous observation data set in ARW encrypted observation area (July 10-12, 2008)
A1  - Ran youhua
A1  - Shu Lele
DO  - 10.12072/ncdc.NIEER.db1738.2022
PY  - 2021
DA  - 2021-09-14
PB  - National Cryosphere Desert Data Center
AB  - From July 10 to 12, 2008, based on the Landsat TM data on July 7, 2008, the encrypted measurement of vegetation coverage of Stellera chamaejasme and Oxytropis was carried out in ARJO encrypted observation area. This data can provide a basic ground validation data set for remote sensing inversion of poisonous grass coverage. From July 10 to 11, the fish eye camera was used to take photos in a rou quadrat 2 and a self selected Stellera chamaejasme quadrat to measure the coverage. Fisheye Photography: the camera used is Nikon D80, the fisheye lens is Sima 8mm f3.5 ex DG circular fisheye, the photography height is 1.5m, and it is facing the ground downward. The vegetation height measurement of small quadrat was carried out on July 12. Quadrats are randomly selected along the road. Quadrat specification: 60m × 60m or 120m × 120m, a total of 8 large quadrats were investigated, and 5m was selected in each large quadrat × 5m grid. 5 m each × The 5m small quadrat is divided into 2.5m × 2.5m grid to investigate the number and height of poisonous weeds. The main investigation items include: GPS point number, species, number of plants and height. The GPS point number is recorded with Garmin GPS 76. The data set includes the following files or folders: quadrat survey coordinates, a rou quadrat 2 Stellera chamaejasme survey data, a rou Stellera chamaejasme survey data, a rou TM quadrat.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/10818308-1c4b-4acd-9605-19bc17434305
ER  -