NORRKÖPING, SWEDEN

Contacts:
Jan-Erik Karlsson
Swedish Meteorological & Hydrological Institute, SMHI
Folkborgsvägen 1
S-601 76 Norrköping, Sweden
Tel : (46) 11 158 381
Fax : (46) 11 151 707
E-mail :
Server :
Station Location:
Norrköping, Sweden.
Latitude: 58°35' N
Longitude: 16°09' E
Height above sea level: 43 m.
Local Time: GMT+1

Code: SWE2
Type: General class.
Operation:
Started in August 1993.

Topographic map showing the land
within a 5 km radius of the station location

NORRKÖPING, SWEDEN

Site surroundings:

Within a radius of 5 km around the station, 50% of the environment is urban or suburban and 50% is recreation fields, farm land and forest. The highway E4 runs 200 m from the station.

Climate characteristics:

Climate is warm temperate and is influenced by the Baltic Sea. Average temperature in January is -3.1°C and in July is 16.5°C. Average annual sunshine duration is 1765 hours and monthly average is 40 hours in January and 253 hours in July. The closest weather station is Linköping, lat. 58°24' N, long. 15°31' E at a distance of 45 km.

Map showing the immediate surroundings of the station

NORRKÖPING, SWEDEN

Sampling Interval:
1 mn.
Recording Interval:
1 mn.

Illuminances:
Global horizontal: Licor LI-210
Direct normal: Licor LI-210 (5.5° angle)
Diffuse horizontal: Licor LI-210
North vertical: Licor LI-210
East vertical: Licor LI-210
South vertical: Licor LI-210
West vertical: Licor LI-210

Irradiances:
Global horizontal: Kipp & Zonen CM11
Direct normal: Eppley NIP (5.5° angle)
Diffuse horizontal: Kipp & Zonen CM11
North vertical: Kipp & Zonen CM11
East vertical: Kipp & Zonen CM11
South vertical: Kipp & Zonen CM11
West vertical: Kipp & Zonen CM11

Others:
Zenith luminance: Licor LI-210 (25° angle)
Temperature: PT 100
Relative humidity: Lambrecht
Wind direction: SMHI
Wind velocity: SMHI

Shadow disks
Diffuse illuminance:
radius: 72.7 cm / width: 7.0 cm
Diffuse irradiance:
radius: 72.7 cm / width: 7.0 cm

Station map

Obstruction for the global
horizontal illuminance sensor

Comments

The sensors for diffuse illuminance and irradiance are shaded with suntracking disks. Due to the severe winter conditions, the Licor photometers are mounted behind glass domes in temperature regulated instrument cases, each one taking up to five sensors. For direct normal measurements and zenith luminance measurements, the glass dome is replaced by a tube supplied with a glass window in the front. The photometric sensors were calibrated in June, 1993, at the Swedish National Testing and Research Institute, against a CIE standard lamp A and these new responsivity values were applied. On an average the difference between the new responsivities and the manufacturer's was 0.25%.

NORRKÖPING, SWEDEN

View 1 of the station

Comments

This view of the station is looking toward ESE. The diffuse illuminance sensor can be seen to the left. On the floor in the center is the suntracker with the shading disk. In the rear left corner is the global irradiance sensor, and to the right is the Brewer Ozone Spectrophotometer mounted on an azimuth suntracker.

View 2 of the station

Comments

To the left is a suntracker carrying the direct illuminance sensor. To the right is another suntracker carrying the direct irradiance sensor. In the right corner of the platform, on top of a mast, are the four vertical irradiance sensors behind a large cylindrical screen. On top of this are the horizontal and the four vertical illuminance sensors.

NORRKÖPING, SWEDEN

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

Date

Comments

Aug 5, 93
sunrise to 13:40
Direct illuminance meter not tracking
Sep 19, 93
sunrise to 12:30
Diffuse illuminance and irradiance meters not shaded.
Sep 20, 93
sunrise to 7:25
Diffuse illuminance and irradiance meters not shaded.
Oct 11, 93
before 8:30
Diffuse illuminance and irradiance meters not shaded.
Oct 15, 93Moisture on innerside of window of direct illuminance meter during forenoon. Instrument disconnected and sealed 14:45-15:50.
Oct 15, 93 to
Nov 4, 93
Heating of direct illuminance meter out of function.
Oct 29, 93
sunrise to 10:55
Direct illuminance meter disconnected.
Nov 4, 93
6:00 to 8:30
Programme stop.
Nov 4, 93
13:00 to 14:00
Direct illuminance meter disconnected for repairing of heating circuit.
Nov 13, 93
sunrise to 10:40
Diffuse illuminance meter not shaded.
Dec 6, 93
sunrise to 9:05
Diffuse illuminance meter not shaded.
Jan 4, 94
6:00 to 8:30
Programme stop.
Feb 19, 94 to
Feb 20, 15:30
Programme stop.


Last modification : March 28, 1997.
WebMaster IDMP :
idmp.master@entpe.fr