CEOP_AP Northeast Thailand Reference Site Nakhonrachasima Station

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Regional Hydroclimate Project:

CEOP_AP

formerly known as CAMP (CEOP Asian Monsoon Project)

Reference Site Name:

Northeast Thailand Station Name:

Nakhonrachasima Other Stations at Reference Site:

None Contact Information:

Name:

Affiliation:

Tokyo University of Agriculture and Technology

Address:

3-8-1 Harumi-cho Fucuu-city Tokyo, Japan, 183-8538

E-mail:

Telephone:

Fax:

Associated Web Sites:

MAHASRI Home Page

Station Location, Maps and Google Earth Files:

Thailand Regional Map (click for full resolution):

Google Earth .kmz file of CEOP_AP Northeast Thailand Reference Site stations

Station Description:

General Description:

To clarify the energy and water cycle in the Thailand, it is important to understand the characteristics of the basic meteorological elements and surface fluxes. The purpose of Nakhorn-ratchasima-AWS (Automatic Weather Station) observation is to monitor these meteorological values and analyse the mechanisms of the energy and water cycle in the Cassava field in tropical Monsoon areas.

The fields around the Northeast Thailand Reference Site (click for full resolution):

Station Operator: Tokyo University of Agriculture and Technology

Vegetation and Land Use:

Dominant land cover at the measurement location: Cultivated Cassava Code: 211

Canopy height: 250cm (in dry season there is no vegetation). From May to Oct. the height of the Cassava is change with the growing season, while the maximum height is around the 250cm.

Land cover within 50 m of site: Code: 211 (100%)

Land cover within 500 m of site: Code: 211 (100%)

Land cover within 12 km of site: Code: 213 (100%)

Seasonal land cover changes: Cassava harvesting for every year or two, typically in January to February.

Major changes in land cover at site from October 2002 to December 2004: None.

Slope at the site: Gentle sope facing south-west

Other notes: None

Soil Type and Characterization:

Surface soil type: Clay 61% Sild 21% Sand 18% class: Clay

Soil type in deeper layers: Clay (same as surface soil up to GL-2.0m)

Surface soil porosity: 58%.

Soil porosity in deeper layers: 42% (GL-0.1-0.5m average including "hard-pan layer")

Soil infiltration rate: No information.

Bulk Dry Density:

Saturated Hydraulic Conductivity: 1.9E-3 to 5.3E-4 cm/sec (Average = 1.97E-4) by Guelf permeameter

The Soil Reference Group(s) (from World Reference Base for Soil Resources): Rodic Kandiustox (Typic Palehumults, Fine, Kaolinitic, isohyperhermic)

Climate:

No information.

CEOP Parameters Measured and Instrumentation:

SURFACE METEOROLOGY AND RADIATION INSTRUMENTATION AND DESCRIPTION:

Station pressure 0m Vaisala PTB220C
Air Temperature 9.5m Okazaki TS-801 (pt100)
Dew point - 9.5 m (derived)
Relative humidity 9.5m Vaisala HMP45D
Specific humidity 9.5m derived.
Wind speed 10.5m Komatsu 3 cup anemometer (VS-125); Komatsu propeller type (WS-D32)
Wind direction 10.5m Komatsu WS-D32
U wind component 10.5m (derived)
V wind component 10.5m (derived)
Precipitation - variable with growing season (0 to 4 m) ETI NOAH-II
Snow depth - Not Measured.
Incoming shortwave radiation - 4m Kipp & Zonen CM-21
Outgoing shortwave radiation - 4m Kipp & Zonen CM-21
Incoming longwave radiation - 4m Eppley PIR
Outgoing longwave radiation - 4m Eppley PIR
Net radiation 4m derived
Skin temperature - 4m Exergen P-IRt/C 1X-T50F
Incoming Photosynthetically Active Radiation (PAR) - Not measured.
Outgoing Photosynthetically Active Radiation (PAR) - Not measured.
Instrumentation at the Nakhonrachasima station (click for full resolution):

METEOROLOGICAL TOWER INSTRUMENTATION AND DESCRIPTION:

Station pressure 0m Vaisala PTB220C
Air Temperature (9.5m and another height variable with growing season) Okazaki TS-801 (pt100)
Dew point - (9.5 m and another height variable with growing season) (derived)
Relative humidity (9.5m and another height variable with growing season) Vaisala HMP45D
Specific humidity (9.5m and another height variable with growing season) derived.
Wind speed (4, 9.5 and 10.5m) Komatsu 3 cup anemometer (VS-125); Komatsu propeller type (WS-D32)
Wind direction 10.5m Komatsu WS-D32
U wind component 10.5m (derived)
V wind component 10.5m (derived)

FLUX INSTRUMENTATION AND DESCRIPTION: The eddy covariance technique is utilized.

Sensible Heat Flux Not measured.
Latent Heat Flux Not measured.
CO2 Flux Not measured.
Soil Heat Flux (1 cm depth; two separate instruments) EKO P-MF-81

SOIL INSTRUMENTATION AND DESCRIPTION:

Soil temperature (6, 10, 15, 20, 30 and 50 cm depths) - Okazaki TS-301 (pt100)
Soil moisture (15 cm depth; two separate sensors) IMKO TRIME-EZ5

RADIOSONDE INSTRUMENTATION AND DESCRIPTION:

No data of this type available at this station.

Site References

None provided.

Literature:

None provided.

Presentations:

MAHASRI (13 March 2007; Washington, DC, USA)
Introduction to CAMP Quality Control Data System (27 February 2006; Paris, France)
GAME/CAMP (10 March 2004; Irvine, California, USA)
GAME/CAMP (02 April 2003; Berlin, Germany)
CAMP Northeast Thailand 31 March 2003; Berlin Germany)
CAMP Northeast Thailand (6 March 2002; Tokyo, Japan)

Data Sets and Documentation: