%0 Dataset
%T Multi-scale surface flux and meteorological element observation dataset in the Haihe River Basin: vortex correlator at Huailai Station (2013)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/5c03c290-9b64-481d-8e5a-9e04e9668faa
%W NCDC
%R 10.12072/Westdc.002.2020.db
%A Liu shaomin
%A Xu ziwei
%K Vortex correlator;sensible heat flux;latent heat flux
%X This data set contains the observation data of 10 m tower eddy covariance instrument from January 1, 2013 to December 31, 2013. The site is located in donghuayuan Town, Huailai County, Hebei Province. The longitude and latitude of the observation point are 115.7880e, 40.3491n and 480m above sea level. The acquisition frequency of vortex correlator is 10Hz, the frame height is 5 m, the ultrasonic direction is due north, and the distance between the ultrasonic anemometer (Gill) and the CO2 / H2O analyzer (li7500a) is 18 cm. The observational data released by eddy correlator include date / time, wind direction WDIR (°), horizontal wind speed wnd (M / s) and standard deviation of lateral wind speed STD_ Uy (M / s), ultrasonic virtual temperature TV (k), water vapor density H2O (g / m3), carbon dioxide concentration CO2 (mg / m3), friction velocity ustar (M / s), obuhof length, sensible heat flux HS (w / m2), latent heat flux Le (w / M2), carbon dioxide flux FC (mg / (M2S)), quality identification of sensible heat flux QA_ HS, quality identification of latent heat flux QA_ LE。 The quality identification of sensible heat, latent heat and carbon dioxide flux can be divided into three levels (quality identification 0: (Δ st & lt; 30, ITC & lt; 30); 1: (Δ st & lt; 100, ITC & lt; 100); the rest is 2). The meaning of data time, for example, 0:30 represents the average of 0:00-0:30; the data is stored in *. XLS format. Please refer to Yang Guangchao et al. (2015) for observation test or site introduction, and Liu et al. (2013) for data processing.