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Anemometer
3
BARO
Barometer
3
Cloud cover
3
DATE/TIME
3
HYGRO
3
Humidity
3
Hygrometer
3
IPY-1
3
International Polar Year 1881-1884
3
Jan Mayen
3
Jan_Mayen
3
OBSE
3
Observation
3
Precipitation
3
Pressure
3
Rain gauge
3
Temperature
3
Thermometer
3
Vapour tension
3
Visual observation
3
Wind speed
3
air
3
atmospheric
relative
3
daily total
2
Calculated from cloud direction description
1
Calculated from wind direction description
1
Cloud direction
1
Cloud direction description
1
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