Wind Speed and Direction
Wind sensors should be located over open level terrain, and at a distance of at least ten times
the height of any nearby building, tree or other obstruction, as illustrated in Figure 1.
Temperature and Relative Humidity
The surface should be covered by short grass. Sensors should be located at a distance of at
least four times the height of any nearby obstruction and at least 100 feet from large paved
areas.
Situations to avoid include:
• Large industrial heat sources
• Rooftops
• Parking lots
• Steep slopes
• Sheltered hollows
• High vegetation
• Shaded areas
• Swamps
• Low places holding standing water after rain
Precipitation
The rain gauge should be located a distance of two to four times the height of any obstruc-
tions. The rain gauge should be high enough to not be hit by sprinklers.
Solar Radiation
Pyranometers should be located to avoid shadows on the sensor at any time.
Weather Station Communication
The most common method of communication with a weather station is dial-up telephone
service or “direct connect” utilizing a short-haul modem. More than one user can access a
dial-up station. Direct connect stations are connected to a single computer. If the weather
station is located in close proximity to the Weather Reach Server then there is a simple,
low cost means to access a weather station. If the direct connect weather station is being
accessed by another computer system, there may be alternative solutions. Contact Weather
Reach Signal Provider Support 1-877-351-6588 for more information.
There are other communication methods supported by Campbell Scientific. Contact Weather Reach
Signal Provider Support 1-877-351-6588 for more information.
14 Weather Reach Signal Provider
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