MSE: Mase paddy flux site General site detail (updated 12 September 2011)
Site name
Mase paddy flux site
AsiaFlux site code
MSE
Location
Tsukuba, Ibaraki, Japan
Position
36º 03' 14.3" N, 140º 01' 36.9" E (GARMIN)
Elevation
13 m above sea level
Slope
N/A
Terrain type
Almost flat
Area
About 200 ha (2 km by 1 km along Kokai river)
Fetch
700 m (Easterly wind) - 1000 m (southerly wind) (Easterly wind prevails in most of the growing period except in mid-summer when the southerly wind prevails.)
4 component net radiometer, CNR1 (Kipp&Zonen, The Netherlands) (August 1999 - April 2009). 4 component net radiometer, MR-40 (Eko, Tokyo,Japan) (May 2009 - present).
Global solar radiation (outgoing)
2.35 m
4 component net radiometer, CNR1 (Kipp&Zonen, The Netherlands) (August 1999 - April 2009). 4 component net radiometer, MR-40 (Eko, Tokyo,Japan) (May 2009 - present).
Long-wave radiation(incoming)
2.35 m
4 component net radiometer, CNR1 (Kipp&Zonen, The Netherlands) (August 1999 - April 2009). 4 component net radiometer, MR-40 (Eko, Tokyo,Japan) (May 2009 - present).
Long-wave radiation(outgoing)
2.35 m
4 component net radiometer, CNR1 (Kipp&Zonen, The Netherlands) (August 1999 - April 2009). 4 component net radiometer, MR-40 (Eko, Tokyo,Japan) (May 2009 - present).
Net radiation
2.35 m
4 component net radiometer, CNR1 (Kipp&Zonen, The Netherlands) (August 1999 - April 2009). 4 component net radiometer, MR-40 (Eko, Tokyo,Japan) (May 2009 - present).
PPFD (incoming)
2.35 m
4 component net radiometer, CNR1 (Kipp&Zonen, The Netherlands) (August 1999 - April 2009). 4 component net radiometer, MR-40 (Eko, Tokyo,Japan) (May 2009 - present).
PPFD (outgoing)
2.35 m
4 component net radiometer, CNR1 (Kipp&Zonen, The Netherlands) (August 1999 - April 2009). 4 component net radiometer, MR-40 (Eko, Tokyo,Japan) (May 2009 - present).
Direct / diffuse radiation
-
Direct / diffuse PPFD
-
Quantum sensor, LI190SL (LI-COR) equipped with a shadow blade (Eko) (2005-2006). Quantum sensor, LI190SL (LI-COR) equipped with a rotating shadow blade PRB-100 (Prede, Tokyo, Japan) (July 2009 - present).
Air temperature
3.85 m
Platinum resistance thermometer (100 ohm) equipped with a home-made ventilator (August 1999 - 15 November 2000). Platinum resistance thermometer, HMP45A (Vaisala, Helsinki, Finland) equipped with a home-made ventilator (16 November 2000 - present).
Humidity
3.85 m
Wet-bulb temperature was measured with a platinum resistance thermometer (100 ohm) equipped with a home-made ventilator (August 1999 - 15 November 2000). Relative humidity was measured with a capacitive moisture sensor, HMP45A (Vaisala) equipped with a home-made ventilator (16 November 2000 - present).
3.85 m and 1.25 m (August 1999- September 2003. The measurement heights were changed with rice growth.) 3.8 m and several lower heights (May 2004 - present).
Non-dispersive infrared gas analyzer, ZFU (Fuji Electric, Tokyo, Japan) (August 1999 - September 2003). Non-dispersive infrared gas analyzer, LI-6262 (LI-COR) (May 2004 - present)
Akira Miyata (amiyat [at] niaes.affrc.go.jp) Masayoshi Mano (mano [at] chiba-u.jp) Keisuke Ono (onok [at] affrc.go.jp) Agro-Meteorology Division,National Institute for Agro-Environmental Sciences (NIAES) 3-1-3, Kannondai, Tsukuba, Ibaraki 305-8604, Japan TEL: + 81-29-838-8207 FAX: + 81-29-838-8211 http://ecomdb.niaes5.affrc.go.jp/
Calibration Information
The open-path analyzers were calibrated in laboratory at least twice a year, before and after the rice growing season,with zero gas and standard CO2 gas from cylinders and a dew point generator, LI-610 (LI- COR). The closed-path gas analyzer was calibrated in situ once a day with zero gas and standard CO2 gas from cylinders.
Research fund
Global Warming Initiative Program (FY2002-2005; FY 2006- 2009; FY2010-2014) by the Ministry of Agriculture, Forestry and Fisheries of Japan Global Environment Research Coordination System (FY 2007-2011) by the Ministry of the Environment, Japan Global Environmental Research Fund B-3 (FY2000-2002) and S-1 (FY2003-2006) by the Ministry of the Environment, Japan