Observation Project | Observational method | Instrument | Observation time |
Rainfall | Self-recording rain and ordinary rain gauges | SL1 Telemetry rain gauge; DSJ2 Siphon self-recording rain gauge(made in Tianjin, China); | Day |
ET | Weighing and Depth measurement method | Lysimeter, Evaporating dish | Day |
Air temperature | | Temperature Table | Hour |
Geothermal | Underground 5, 10, 15, | Ground temperature Table | Hour |
Humidity | | psychrometer | Hour |
Solar radiation | Downlink radiation and upward radiation | Solar Radiometer | Hour |