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Barometer
70
DATE/TIME
70
IPY-1
70
Station pressure
Thermometer
70
Anemometer
68
Cloud cover
68
Visual observation
68
Wind speed
68
Observation
62
Hygrometer
54
Rain gauge
52
Vapour tension
49
BARO
48
International Polar Year 1881-1884
48
Temperature
48
air
48
OBSE
42
Wind direction
42
HYGRO
39
Humidity
39
relative
39
Precipitation
37
Wind direction description
32
Hydrometeor
30
Cloud type
28
Calculated from wind direction description
26
daily total
26
Cloud direction description
22
Temperature, air
22
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