| System | Open-path method |
| Wind speed | Sonic anemometer-thermometer, DA600 & TR62AX (KAIJO) |
| Air temperature | Sonic anemometer-thermometer, DA600 & TR62AX (KAIJO) |
| Water Vapor | Until 16:30 of Nov. 30, 2001: OP-NDIR, E009B (Advanet) After 17:00 of Nov. 30, 2001: OP-NDIR, LI7500 (LI-COR) |
| CO2 | Until 16:30 of Nov. 30, 2001: OP-NDIR, E009B (Advanet) After 17:00 of Nov. 30, 2001: OP-NDIR, LI7500 (LI-COR) |
| Sampling frequency | 10 Hz |
| Averaging time | 30 min |
| Data logger | DRM3, TEAC, Japan |
| Data storage | MO |
| Original data (Raw data or statistics) | Raw data |
| Observation items | Levels / Depth | Instrument |
| Global solar radiation (incoming) | 2.35 m | 4-component net radiometer, CNR1 (Kipp&Zonen) |
| Global solar radiation (outgoing) | 2.35 m | 4-component net radiometer, CNR1 (Kipp&Zonen) |
| Long-wave radiation (incoming) | 2.35 m | 4-component net radiometer, CNR1 (Kipp&Zonen) |
| Long-wave radiation (outgoing) | 2.35 m | 4-component net radiometer, CNR1 (Kipp&Zonen) |
| Net radiation | 2.35 m | 4-component net radiometer, CNR1 (Kipp&Zonen) |
| PPFD (incoming) | 2.35 m | Quantum sensor, LI190 (LI-COR) |
| PPFD (outgoing) | 2.35 m | Quantum sensor, LI190 (LI-COR) |
| Direct/diffuse radiation | - | - |
| Direct/diffuse PPFD | - | - |
| Air temperature | 3.85 m | Platinum resistance thermometer, HMP45A (Vaisala) |
| Humidity | 3.85 m | Capacitive moisture sensor, HMP45A (Vaisala) |
| Soil temperature | 1, 5, 10, 20 and 40cm below the soil surface | T-type thermocouple, hand-made |
| Soil heat flux | 1 cm below the soil surface | Thermopile-type heat flux plate, MF-81 (Eko) |
| Soil water content | - | - |
| Wind speed | 6.3 m | Cup anemometer, AF-750 (Makino) |
| Wind direction | 4.35 m | Wind vane, VF016 (Makino) |
| Barometric pressure | 1.5 m | Capacitive pressure transducer, PTA427 (Vaisala) |
| Precipitation | 1.7 m | Rain bucket, TE525MM (Campbell) |
| CO2 concentration | - | - |