CEOP_AP Tsukuba Reference Site UT-TERC Station

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Regional Hydroclimate Project:

CEOP_AP

Reference Site Name:

Tsukuba Station Name:

UT-TERC (Terrestrial Environment Research Center) Other Stations at Reference Site:

Reference Site Representative:

Name:

Affiliation:

Associate Prof., University of Tsukuba

Address:

Tenno-dai, 1-1-1, Tsukuba, Ibaraki 305-8572, JAPAN

E-mail:

Telephone:

Fax:

Data Management Contact:

Name:

Affiliation:

Assoc. Professor Terrestrial Environment Research Center Tsukuba University

Address:

E-mail:

Telephone:

Fax:

Associated Web Sites:

Station Location, Maps and Google Earth Files:

UT-TERC Local Station Map (click for full resolution):

Tsukuba Local Region Map (click for full resolution):

Tsukuba Regional Station Map (click for full resolution):

Google Earth:

Google Earth .kmz file of CEOP_AP Tsukuba Reference Site stations

Station Description:

General Description:

To promote science and technology and to become the center of advanced research and higher education based on its national institutes and university, a new science city (Tsukuba Science City) was established approximately 60 km northeast of Tokyo, in the 1970s (http://www.info-tsukuba.org/). The CEOP Tsukuba Reference Site (CTRS) project started in 2007 with the support of grants-in-aid for scientific research from the Japan Society for the Promotion of Science (CEOP Tsukuba DB, No. 198052). The aim of this project is the archiving of the hydrometeorological data observed by the multiple institutes and university in Tsukuba Science City, and to link them to the domestic and international science community with a standard format within the framework of the CEOP project (http://www.ceop.net/). The following institutes and university are members of the CTRS project at present : Meteorological Research Institute (MRI), Terrestrial Environment Research Center (TERC) and Mt. Tsukuba Station (MtTSUKUBA) of the University of Tsukuba (UT). National Research Institute for Earth Science and Disaster Prevention (NIED), National Institute for Agro-Environmental Sciences (NIAES), and National Institute for Environmental Studies (NIES).

Station Description:

Terrestrial Environment Research Center (TERC) started its long-term measurement of the surface heat and water balance at its surface heat and water balance field in 1981, and is continuing the observation. The field is circle in shape and has a 30-meter tower at its center. On the tower, profiles of air temperature, humidity and turbulance fluxes are measured and while, on the ground of the field, various measurements relevant to the surface heat and water budget are also being made. These include radiation components, ground water levels, soil temperature and soil heat flux. The measured data averaged over various time scale (30min., 1hour, 1day) are available on the web page (http://www.suiri.tsukuba.ac.jp). Some of that can be dated back to 1980's. Among the measurements, basic meteorological and hydrological parameters are provided for CEOP2.

Station Operator:

Terrestrial Environment Research Center Tsukuba University

Vegetation and Land Use:

Tsukuba Reference Site is situated on the Joso Plateau (20-30 m a.s.l.) consisting northeastern parts of Kanto plain. Land cover of the site is mainly consisted of two parts, one is the urbanized zone stretching north-south directions used for public facilities, residential areas, and commercial and business areas (so-called Tsukuba Science city), and the other parts are rural areas used for paddy field, dry field and orchard.

In August, 2005, the Tsukuba Express Railway started its business, and Tsukuba Science city is rapidly urbanizing. Two rivers are running in the north-east and south-west of the site, named Sakura-gawa and Kokai-gawa, and the paddy fields are mainly distributing along those rivers. Mt. Tsukuba (876 m a.s.l.) locates about 7 km north of the city center, mostly forested by beech, tall evergreen oak, and Japanese red pine tree. In the calm winter days, development of nighttime inversion layer over the Kanto plain causes thermal belt along the mountain slope, and it is utilized for local habitat and fruits plantation.Therefore, CEOP-Tsukuba reference site covers various of land-use with faster growing populated city representing land cover in the Kanto plain, central Japan.

Dominant land cover at the measurement location: No information.

Canopy height: No information.

Land cover within 50 m of site: No information.

Land cover within 500 m of site: No information.

Land cover within 12 km of site: No information.

Seasonal land cover changes: No information.

Major changes in land cover at site from October 2002 to December 2004: No information.

Slope at the site: No information.

Other notes: No information.

Soil Type and Characterization:

Surface soil type: No information.

Soil type in deeper layers: Underlying the surface soil are a loam layer (1.5-20 m; the Kanto Loam), a clay layer (2.5-9 m; the Joso clay), a sand layer (9-30 m), a fine sand layer (30-47.5 m), and a sand & gravel layer (47.3-55m) in descending order. Basement rocks in the area consist of granitic and metamorphic rocks, forming the Mt.Tsukuba. The water table is generally observed within the Kanto loam or the Joso clay.

Surface soil porosity: No information.

Soil porosity in deeper layers: No information.

Soil infiltration rate: No information.

Bulk Dry Density: No information.

Saturated Hydraulic Conductivity: No information.

The Soil Reference Group(s) (from World Reference Base for Soil Resources): No information.

Climate:

No information.

CEOP Parameters Measured and Instrumentation:

SURFACE METEOROLOGY AND RADIATION INSTRUMENTATION AND DESCRIPTION:

Station pressure measured; at 1.5 m height; no instrumentation information
Air Temperature measured at 1.6 m height; no instrumentation information
Dew point - presumably derived at 1.6 m height
Relative humidity measured at 1.6 m height; no instrumentation information
Specific humidity presumably derived at 1.6 m height
Wind speed measured at 1.6 m height; no instrumentation information
Wind direction not measured
U wind component not measured
V wind component not measured
Precipitation - measured; no instrumentation information
Snow depth - Not measured.
Incoming shortwave radiation - measured at 1.5 m height; no instrumentation information
Outgoing shortwave radiation - not measured
Incoming longwave radiation - Not measured
Outgoing longwave radiation - Not measured
Net radiation not measured
Skin temperature - Not measured
Incoming Photosynthetically Active Radiation (PAR) - Not Measured
Outgoing Photosynthetically Active Radiation (PAR) - Not Measured

METEOROLOGICAL TOWER INSTRUMENTATION AND DESCRIPTION:

Station pressure measured at 1.5 m height; no instrumentation information
Air Temperature measured at 1.6, 12.3 and 29.5 m height; no instrumentation information
Dew point - presumably derived at 1.6, 12.3 and 29.5 m height
Relative humidity measured at 1.6, 12.3 and 29.5 m height; no instrumentation information
Specific humidity presumably derived at 1.6, 12.3 and 29.5 m height
Wind speed measured at 1.6 and 29.5 m height; no instrumentation information
Wind direction measured at 29.5 m height; no instrumentation information
U wind component presumably derived at 29.5 m height
V wind component presumably derived at 29.5 m height

FLUX INSTRUMENTATION AND DESCRIPTION:

Sensible Heat Flux measured at 1.6 and 29.5 m height; no instrumentation information
Latent Heat Flux Not measured
CO2 Flux Not measured
Soil Heat Flux not measured

SOIL INSTRUMENTATION AND DESCRIPTION:

No soil data available.

RADIOSONDE INSTRUMENTATION AND DESCRIPTION:

No radiosonde measurements available.

OTHER INSTRUMENTATION AND DESCRIPTION:

Momentum flux at 1.6 and 29.5 m height
Ground water level at 2.2, 10.0 and 22.0 m depth

Site References

Tsukuba Web Site

Literature:

Ueno et al. (2008); Establishment of CEOP Tsukuba Reference site, Tsukuba Geoenvironmental Sciences, vol. 4, 17-20.

Presentations:

September 2007 - Bali, Indonesia

Tsuskuba

March 2007 - Washington, DC, USA

Tsukuba Poster

Data Sets and Documentation: