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Anemometer
32
Barometer
32
Cloud cover
32
DATE/TIME
32
IPY-1
32
Station pressure
Thermometer
32
Visual observation
32
Wind direction
Wind direction description
Wind speed
32
Hydrometeor
30
Cloud type
28
Hygrometer
28
Observation
28
Rain gauge
28
Calculated from wind direction description
26
Vapour tension
26
Cloud direction description
22
Cloud direction
20
Calculated from cloud direction description
18
BARO
16
International Polar Year 1881-1884
16
Temperature
16
Temperature, air
16
air
16
HYGRO
14
Humidity
14
Humidity, relative
14
OBSE
14
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