TY  - Data
T1  - Meteorological observation data set of yanwachuan basin in Loess Plateau Gully Region from 1981 to 1990
A1  - Yellow River Water Conservancy Commission Xifeng Soil and Water Conservation Scientific Experimental Station
DO  - 10.12072/ncdc.HWXFZhan.db0034.2020
PY  - 2021
DA  - 2021-07-08
PB  - National Cryosphere Desert Data Center
AB  - This data set is the daily evaporation data of yanwachuan runoff station in yanwachuan basin of Loess Plateau Gully Region from 1981 to 1990. The evaporating dish is 20 cm, and the observation is carried out on 31 days per month in December each year. The observation elements include monthly evaporation, monthly maximum evaporation, monthly minimum evaporation, annual statistical maximum and minimum evaporation and winter ice initial ice time. The observation accuracy is 0.1 mm. It was observed at 8 o'clock every day and every five days during the freezing period. The evaporation capacity of evaporating dish is observed by rainfall cup of the same specification or special platform scale. The original water in the evaporating dish is 20 mm. At 8:00 a.m. of the previous day, the water in the cup is filled with 20 mm. After 24 hours, the remaining water in the dish is returned to the measuring cup, and the amount of reduction is the evaporation of the day. After observation, change water to keep the water volume of 20 mm in the dish. When there is rain falling into the dish, the actual evaporation is obtained by subtracting the precipitation during the observation and recording.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/478d4176-bd30-44f7-b2da-aab0d74accc5
ER  -