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Anemometer
20
Barometer
20
Calculated from cloud direction description
Calculated from wind direction description
Cloud cover
20
Cloud direction
20
Cloud direction description
20
Cloud type
20
DATE/TIME
20
Hygrometer
IPY-1
20
Observation
20
Rain gauge
20
Thermometer
20
Visual observation
20
Wind direction
20
Wind direction description
Wind speed
20
Hydrometeor
18
Station pressure
18
Vapour tension
18
BARO
10
HYGRO
10
Humidity
10
Humidity, relative
10
International Polar Year 1881-1884
10
OBSE
10
Temperature
10
Temperature, air
10
air
10
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