Geoscience Reference
In-Depth Information
observational requirements of a climatological station or synoptical station are
detailed in [WMO 03] and include: present weather, past weather, wind direction
and speed, cloud amount, cloud type, cloud-base height, visibility, air temperature,
relative humidity, air pressure, precipitation, snow cover, sunshine duration or solar
radiation, soil temperature, evaporation.
North
Cup-counter
anemometer
on slender
2 m pole
Thermometer
screen
100 cm
Soil thermometer
Rain gage 1
Rain gauge 1
Rain gage 2
Rain gauge 2
West
East
Recording
rain gauge
Soil thermometer
Concrete slab
Grass minimum thermometer
West
Soil thermometers
Bare-soil minimum
thermometer
Sunshine
recorder
on 2 m
pillar
Bare patch to be
kept weeded
South
Figure 1.1. Layout of an observing station in the northern
hemisphere showing minimum distances between
installations (from [WMO 08])
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