VOEIKOVO, RUSSIA

Contacts: Prof. E.P. Borisenkov Director Main Geophysical Observatory Actinometric Laboratory Karbyshev Str., 7 St. Petersburg, 194018, Russia Tel : (7) 95 247 01 03 Fax : (7) 95 247 86 61 E-mail : Server :	Station Location: Voeikovo, Russia. Latitude: 59°54' N Longitude: 30°42' E Height above sea level: 72 m. Local Time: GMT+2 Code: RUS2 Type: Basic class. Operation: Started in January 1989.
Topographic map showing the land within a 5 km radius of the station location

VOEIKOVO, RUSSIA

Site surroundings: This station is located on the north-east boundary of the Koltushi plateau. Within a 5 km radius, there are small settlements, a forest park zone, fields and marshes. The population in Voeikovo is around 2000.	Climate characteristics: The climate is a transition from continental to maritime. Average temperature in January is -8°C and in July is 17°C. Mean annual sunshine duration is 1756 hours. The average number of foggy days in the year is 123. There are no heavy pollution sources within a 3 km radius of the station. The closest weather station is located in St Petersburg.
Map showing the immediate surroundings of the station

VOEIKOVO, RUSSIA

Sampling Interval: ? mn. Recording Interval: ? mn. Illuminances: Global horizontal: MGO sensor Irradiances: Global horizontal: Pyranometer M-80M Diffuse horizontal: Pyranometer M-80M Others: Dry Bulb Temperature: Standard thermometer Relative Humidity: Standard hygrometer Wind direction Wind speed Sunshine duration Shadow band specifications: Diffuse irradiance: radius: 50.0 cm / width: 10.0 cm

Station map Obstruction for the global horizontal illuminance sensor

Comments The daylight sensor used at the station has been developed at the Main Geophysical Laboratory (MGO) on the basis of a silicon element with blocking layer. The basic technical features of the sensor meet the WMO requirements for the class I luxmeter. Metrological support is based on the state calibration scheme for means measuring light magnitudes of continuous and impulse radiation (GOST 8.023-86). Standard instruments for measuring daylight are certified and calibrated by Gosstandart (State Standard). The daylight sensor is calibrated every year by the MGO in natural conditions (by sun). It was calibrated in 1993.

VOEIKOVO, RUSSIA

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VOEIKOVO, RUSSIA

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

Date	Comments
any time	Breaks in the recording of illuminance values are possible because of power supply breakdowns. Particular dates have not been found out.