NKM: Nishikoma Site
General site details
| Site name | Nishikoma Site |
|---|---|
| AsiaFlux site code | NKM |
| Location | Ina, Nagano, Japan |
| Position | 35° 48' 28.95" N, 137° 50' 1.99" E |
| Elevation | 2644 m above sea level |
| Slope | 30 degree |
| Terrain type | Complex |
| Area | - |
| Fetch | 100 m for the dominant wind direction |
| Climate | Dfb: Humid continental |
| Mean annual air temperature | 0.6 degreeC |
| Mean annual precipitation | - |
| Vegetation type | Alpine dwarf pine |
| Dominant Species (Overstory) | Alpine dwarf pine |
| Dominant Species (Understory) | N/A |
| Canopy height | About 0.3 m |
| Age | N/A |
| LAI | N/A |
| Soil type | N/A |
Observation
Eddy Covariance method (CO2)
| System | Open-path system (sensible heat, latent heat, CO2 flux) |
|---|---|
| Wind speed | Three-dimensional sonic anemothermometer (CSAT3, Campbell) |
| Air temperature | Three-dimensional sonic anemothermometer (CSAT3, Campbell) |
| Water vapor | Open-path CO2/H2O analyzer (EC150, Campbell) |
| CO2 | Open-path CO2/H2O analyzer (EC150, Campbell) |
| Measurement height | Approx. 2.3 m |
| Sampling frequency | 10 Hz |
| Averaging time | 30 min. |
| Data logger | CR1000 (Campbell) |
| Data storage | CF card |
| Original data | Statistics |
Meteorology
| Observation items | Levels/Depth | Instrument |
|---|---|---|
| Global solar radiation (incoming) | 2 m | CNR4 (Kipp & Zonen) |
| Global solar radiation (outgoing) | 2 m | CNR4 (Kipp & Zonen) |
| Long-wave radiation (incoming) | 2 m | CNR4 (Kipp & Zonen) |
| Long-wave radiation (outgoing) | 2 m | CNR4 (Kipp & Zonen) |
| Net radiation | - | |
| PPFD (incoming) | - | |
| PPFD (outgoing) | - | |
| Direct/diffuse radiation | - | |
| Direct/diffuse PPFD | - | |
| Air temperature | 2.5 m | HMP60 (Vaisala) |
| Humidity | 2.5 m | HMP60 (Vaisala) |
| Soil temperature | 0.05, 0.1 m | 107 (Campbell) |
| Soil heat flux | 0.01 m | HFT-1.1 (REBS) |
| Soil water content | 0.05 m | CS616 (Campbell) |
| Wind speed | 2.5 m | PGWS-100 (Gill) |
| Wind direction | 2.5 m | PGWS-100 (Gill) |
| Barometric pressure | 1 m | CS106 (Campbell) |
Observation Period and Data Availability
| Measurement Period | September 2018 to present |
|---|---|
| Measurement Frequency | Continuous (flux observation: summer time) |
| Data Availability | N/A |
Contact
Hiroki Iwata (hiwata[at]shinshu-u.ac.jp)
Department of Environmental Science, Faculty of Science,
Shinshu University
3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
Tel: +81-263-37-2502
Infrastructure
Mast, Solar panels