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); 20 cm standard SM1 rain gauges

Day

ET

Weighing and Depth measurement method

Lysimeter, Evaporating dish

Day

Air temperature

1.2 m over the ground

Temperature Table

Hour

Geothermal

Underground 5, 10, 15, 20 cm

Ground temperature Table

Hour

Humidity

1.2 m over the ground

psychrometer

Hour

Solar radiation

Downlink radiation and upward radiation

Solar Radiometer

Hour