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Anemometer
13
BARO
13
Barometer
13
Calculated from wind direction description
Cloud cover
13
Cloud type
13
DATE/TIME
13
HYGRO
13
Humidity
13
Hygrometer
IPY-1
13
International Polar Year 1881-1884
13
Rain gauge
13
Temperature
13
Thermometer
Visual observation
13
Wind direction
13
Wind direction description
Wind speed
13
air
13
relative
13
Cloud direction description
12
OBSE
12
Observation
12
Vapour tension
12
Hydrometeor
11
Precipitation
11
Station pressure
11
daily total
11
Calculated from cloud direction description
10
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