CHRISTCHURCH, NEW ZEALAND

Contacts: Dr A. Bittar / M G White Industrial Research Ltd Gracefield Road Lower Hutt, New Zealand Tel : (64) 45 69 07 31 Fax : (64) 45 69 00 03 E-mail : t.bittar@irl.cri.nz m.white@irl.cri.nz Server :	Station Location: Christchurch, New Zealand. Latitude: 43°29' S Longitude: 172°32' E Height above sea level: 25 m. Local Time: GMT+12 Code: NZL2 Type: General class. Operation: Started in March 1995.
Topographic map showing the land within a 5 km radius of the station location

CHRISTCHURCH, NEW ZEALAND

Site surroundings: The site is located atop our Christchurch research center, approximately 7 km from the city center and 1.5 km from the Christchurch airport. Christchurch city is located on the Canterbury plains and as such there are no significant surrounding hills. Buildings in the vicinity are all low rise giving an unimpeded view of the horizon. This is an excellent unobstructed site with minimal sources of pollution.	Climate characteristics: Warm summers with occasional hot NW winds giving temperatures above 32°C and cool winters with frequent frosts and occasional light snowfalls. Average annual temperature of 11.3°C. Average temperature in January of 17.0°C and 5.6°C in July. Average yearly sunshine duration of 1990 hours. Low annual rainfall of about 500 mm to 750 mm Prevailing wind NE.
Map showing the immediate surroundings of the station

CHRISTCHURCH, NEW ZEALAND

Sampling Interval: 2 mn. Recording Interval: 2 mn. Illuminances: Global horizontal: Modified PRC Krochmann Diffuse horizontal: Modified PRC Krochmann Direct normal: Modified PRC Krochmann, 5.0° fov Irradiances: Global horizontal: Kipp & Zonen CM 11 Diffuse horizontal: Kipp & Zonen CM 11 Direct normal: Modified Kipp & Zonen CM 11, 5.0° fov Others: none Shadow band specifications: Diffuse illuminance: radius: 15.0 cm / width: 4.0 cm Diffuse irradiance: radius: 15.0 cm / width: 4.0 cm

Station map Obstruction for the global horizontal illuminance sensor

Comments The direct and diffuse horizontal sensors (four in total) are all mounted in a sun tracker. The field of view of the direct sensors is limited to 5° with a slope angle of 1.0°. The photometers are thermostated at 35°C. These use components such that f1 and f2 are both <1.5%. Some meteorological data, collected at the nearby airport (1.5 km), is available.

CHRISTCHURCH, NEW ZEALAND

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CHRISTCHURCH, NEW ZEALAND

Important modifications made to the acquisition system, recording interval modification, time during which the station was not operating...

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