TY  - Data
T1  - Heihe River eco hydrological remote sensing experiment: hydrometeorological observation network data set (mixed forest station vortex correlator-2013)
A1  - Xu ziwei
A1  - Liu shaomin
A1  - Li xin
A1  - Chetao
A1  - Ren zhiguo
A1  - Tan Junlei
DO  - 10.12072/ncdc.NIEER.db0061.2020
PY  - 2021
DA  - 2021-08-27
PB  - National Cryosphere Desert Data Center
AB  - The data set contains the eddy correlator observation data of the mixed forest station downstream of Heihe hydrometeorological observation network from July 12, 2013 to December 31, 2013. The station is located in sidaoqiao, Ejina Banner, Inner Mongolia, with Populus euphratica and Tamarix on the underlying surface. The longitude and latitude of the observation point are 101.1335e, 41.9903n and 874 m above sea level. The frame height of eddy correlator is 22m, the sampling frequency is 10Hz, the ultrasonic direction is due north, and the distance between ultrasonic anemometer and CO2 / H2O analyzer is 17cmThe original observation data of eddy correlator is 10Hz, and the released data is the 30 minute data processed by edire software. The main processing steps include: field value elimination, delay time correction, coordinate rotation (quadratic coordinate rotation), frequency response correction, ultrasonic virtual temperature correction and density (WPL) correction. At the same time, the quality of each flux value is evaluated, mainly the atmospheric stability（ Δ St) and turbulence similarity characteristics (ITC). The 30 min flux value output by edire software is also screened: （ 1) Eliminate the data in case of instrument error（ 2) Eliminate the data 1H before and after precipitation（ 3) Eliminate the data with deletion rate greater than 3% every 30min in the 10Hz original data（ 4) Eliminate the observation data of weak turbulence at night (U * less than 0.2m / s). The average period of observation data is 30 minutes, 48 data a day, and the missing data is marked as - 6999. The suspicious data caused by instrument drift and other reasons are marked in red font. During August 16 to September 17, the data cannot be used due to the error of the measured value of ultrasonic anemometer The published observation data include: date / time, wind direction WDIR (°), horizontal wind speed wnd (M / s), standard deviation of lateral wind speed STD_ Uy (M / s), ultrasonic vi
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/1131b16a-1692-4d4e-8b85-1f387f35a9ed
ER  -