Topic
Anemometer
4
Barometer
4
Cloud cover
4
DATE/TIME
4
Hygrometer
4
IPY-1
4
Observation
4
Rain gauge
4
Station pressure
4
Thermometer
4
Visual observation
4
Wind speed
BARO
3
HYGRO
3
Humidity
3
International Polar Year 1881-1884
3
OBSE
3
Point_Barrow
3
Temperature
3
United States of America
3
air
3
relative
3
Calculated from cloud direction description
2
Calculated from wind direction description
2
Cloud direction
2
Cloud direction description
2
Cloud type
2
Precipitation
2
Precipitation integrated
2
Wind direction
2
Wind direction description
2
Humidity, relative
1
Temperature, air
1
daily mean
1
daily total
1
monthly mean
1
monthly total
1