TY  - Data
T1  - Heihe integrated remote sensing joint test: ENVISAT ASAR ground synchronous observation data set in the encrypted observation area of Linze station during the pre-test period (September 12-15, 2007)
A1  - DaiLiyun
A1  - Bai Yunjie
A1  - Chetao
A1  - Han Xujun
A1  - Xiaohua Hao 
A1  - Jin rui
A1  - Li Hongyi
A1  - Li xin
A1  - Liang Ji
A1  - PanXiaoduo
A1  - Ran youhua
A1  - Wang Xufeng
A1  - Liu qiang
DO  - 10.12072/ncdc.NIEER.db1841.2022
PY  - 2022
DA  - 2022-03-15
PB  - National Cryosphere Desert Data Center
AB  - During the pre-test period from September 12 to 15, 2007, ENVISAT ASAR satellite ground encryption observation test was carried out near Linze station and Linze grassland station, and an ENVISAT ASAR image was successfully obtained on September 19, 2007. ENVISAT ASAR data is AP mode, VV / VH polarization combination mode, and the transit time is about 11:29bjt. The measurement contents include: 1. GPS position information: the measuring instrument is Garmin GPS 76 2. Lai measuring instrument: LAI-2000 3. Photosynthesis: the measuring instrument is Linze station Li-6400. Operation specification: please refer to the joint test operation specification for the operation process. Data storage: its data includes original data and processing data. The original data is saved in the custom format of the instrument and can be opened with notepad and other common software. Process the data and save it in Excel. 4. Ground object spectrum: the observation instrument is ASD spectrometer (350 ~ 2500 nm) of drought Institute of Gansu Meteorological Bureau. Reference board information: original white board. Observation target: typical features. Data storage: data includes original data and partially preprocessed data. The original data is the binary file directly generated by the spectrometer, which can be opened with viewspecpro software. See the daily observation records in the data file for detailed observation records; The reflectance data obtained by preprocessing is in text format. 5. Infrared temperature: the observation instrument is a hand-held infrared thermometer (cold and drought Institute); All instruments have been calibrated. Observation quadrat and sampling times: measure the infrared temperature of crown top, vertical canopy, forward 45 ° angle and reverse 45 ° angle. Data storage: Excel. 6. Soil profile: the soil profile is 60cm, which is divided into 4 layers: 0-10cm, 10-20cm, 20-40cm and 40-60cm. Soil moisture measurement method: ring knife method. Photos: obtain
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/f3e38db6-df08-48b9-97dc-e9f80cf9b128
ER  -