%0 Dataset
%T Heihe River comprehensive remote sensing joint test: large aperture scintillator (LAS) data set of aryo freeze-thaw observation station (2008-2012)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/66a61043-6e79-4364-8de7-f0e2c10f71ea
%W NCDC
%R 10.12072/ncdc.NIEER.db0066.2020
%A Liu shaomin
%A Li xin
%A Xu ziwei
%K Large aperture scintillator;meteorology;hydrology;evapotranspiration;surface energy balance
%X This data set contains the observation data of large aperture scintillator (LAS) from March 11, 2008 to April 11, 2012. The instrument model is bls450, produced in Germany. The distance between Las transmitting end and receiving end is 2390m; The longitude and latitude of Las transmitting end are 100 ° 28 ′ 16.4 ″ e, 38 ° 03 ′ 24.3 ″ n; The longitude and latitude of the receiving end are 100 ° 27 ′ 25.9e ″, 38 ° 02 ′ 18.1n ″; The height of the transmitting end from the ground is 11.2m; The height from the receiving end to the ground is 11.5m; The effective height of LAS is 9.5m.The observation content is the air refractive index structure parameter (cn2). The transmitting frequency of Las transmitter is 5Hz, the data at the receiver is output in 1 minute, and the final data processing is an average period of 30 minutes.The data is stored in CSV format, and the file naming rule is water_ LAS_ Ah Rou_ Yyyymmdd yyyymmdd (yyyymmdd yyyymmdd is the observation start and end time). The missing value data is uniformly represented by the string none.The data is updated to April 2012. The specific time range is 20080311-2008103120090101-20120411