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TEAM Climate Monitoring Protocol 3.0

• Ideally, the climate station should be located in a clearing with an unobstructed view of

the sky (no obstacles above 5 degrees from the horizon) to fulfill the siting requirements

of the solar radiation sensor (Level 1)(see Table 2). If it is impossible to find a location

with these characteristics that fulfills also the requirements outlined above, then the

station should be located based on the siting requirements for temperature and

precipitation (Level 2)(see section 4.3). If a suitable location for the solar radiation

sensor cannot be found within the vicinity of the climate station (~100 m), then a separate

site for the solar radiation sensor may be required (Level 3).

• If no suitable locations can be found that fulfill Level 2 siting requirements, then find the

site that most closely approximates the siting requirements for precipitation and

temperature measurements and document site conditions carefully (see section

4.7.1)(Level 4). A workflow describing this process and each of the levels is shown in

Figure 1.

Table 2 summarizes the basic principles for locating several sensors under the guidelines

described above (it includes additional sensors not required in the TEAM Climate

Protocol).

Sensor

Height above the

ground

Minimum distance from

obstacle

Source

Temperature

2.0 m

4 times the height of obstacle

At least 30 m away from road

WMO 2008,

EPA 1995

Relative

Humidity

2.0 m

4 times the height of obstacle

WMO 2008,

EPA 1995

Precipitation

0.3 m

2 times the height of obstacle

WMO 2008,

Wind

10 m

(more reliable in a

canopy tower)

10 times the height of obstacle

WMO 2008,

EPA 1995

Solar

Radiation

3 m but not critical (as

high as possible)

Unobstructed view of the sky;

obstructions should be at an

angle < 5 degrees above the

horizontal plane

WMO 2008

Table 2. Height requirements and minimum distance requirements for several climatic sensors.

The following sections describe in more detail the process of siting the climate station based on

the availability of clearings that fulfill the requirements for different sensors. See Figure 1 for a

workflow summarizing this process.

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