TY  - Data
T1  - Heihe integrated remote sensing joint test: surface roughness data set of biandukou intensive observation area during the pre-test period (2007)
A1  - Jin rui
DO  - 10.12072/ncdc.NIEER.db1798.2022
PY  - 2022
DA  - 2022-03-14
PB  - National Cryosphere Desert Data Center
AB  - This dataset contains: (1) Sample plot 1;（2) Sample plot 2;（3) GPS point coordinates and plot description of biandukou quadrat;（4) Rough - pre test flat mouth 1;（5) Rough - pre test flat mouth 2; This data can provide basic data for the development and verification of microwave remote sensing algorithms. The data set mainly includes the original photos of roughness measurement at each sampling point of biandukou quadrat 1 and biandukou quadrat 2 during the pre-test in the upstream cold area, and the calculation results of surface height standard deviation (CM) and correlation length (CM). The roughness data is collected by digital photography, and then the top of each spoke in the photo and the four corners of the board are manually digitally sampled under ArcView software to obtain the image coordinate value. After geometric correction, the height of each spoke is calculated, and then the surface height standard deviation and surface correlation length are calculated according to the formula.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/6f4da4f4-c996-431d-b897-f032b2ed4c7e
ER  -