%0 Dataset
%T Heihe River eco hydrological remote sensing experiment: spectral observation data set of ground features in the lower reaches of Heihe River (2014)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/37c0f29b-6be9-4bfd-970c-e1fb25b58916
%W NCDC
%R 10.12072/ncdc.nieer.db3480.2023
%A Geng Liying
%K Reflectance;feature spectrum;vegetation
%X During the downstream aerial remote sensing test, the black-and-white synchronous spectrum observation during flight and the spectrum observation of surface features on the typical underlying surface were carried out to provide a basic data set for the preprocessing of aerial flight data. 1. Observation instrument Prs-3500 field portable ground object spectrometer (spectral range: 350-2500nm) and reference plate of Institute of cold and drought, Chinese Academy of Sciences. 2. Underlying surface and observation method The underlying surface includes black and white cloth, Hami melon, Tamarix, Populus euphratica, reeds, weeds, flowers and firewood, sandy soil, Gobi, bitter beans, etc; Before measuring ground objects, the reflectivity of the reference plate shall be measured vertically, and then the reflectivity of ground objects shall be measured vertically. Each ground object shall be measured with 5 spectral reflectances. 3. Observation time and content July 24, 2014: spectral observation of typical features July 27, 2014: spectral observation of typical features July 29, 2014: synchronous observation of black-and-white light spectrum July 31, 2014: spectral observation of typical features 4. Data storage This data set includes the spectral data in *. Sed format exported by the spectrometer (which can be opened with prs-3500 supporting software or directly with Notepad), observation record sheet in Excel format and underlying surface photos