AWG 64 MB MEMORY CARD FOR WII Specifikace stáhnout pdf (Strana 32)

TEAM Climate Monitoring Protocol 3.0

Pyranometer at an alternate location: Follow the same steps for pyranometers that will be

installed at an alternate location within 100 m of the weather station (Level 2) or at a completely

different location with a dedicated data logger (Level 3). In such cases the cross arm will be

attached to a different structure depending on the location chosen. If the pyranometer is installed

within 100 m of the climate station on top of a tall structure, secure the cable connecting the

sensor to the data logger adequately. If the cable is left hanging in the air it might be vulnerable

to the wind or become a bird perching site. Strap the cable to the structure all the way down to

the floor, and from there, bury it underground to the base of the climate station where the data

logger is. It is a good idea to lay down "” PVC pipe 10-20 cm below the ground and pass the

cable through the PVC rather than bury it unprotected.

5.5.3 Rain Gauge (TB4)

The rain gage should be installed at least 6 m away from the climate tower and 30-60 cm above

the ground on a leveling base on top of a pole.

Mounting Pole: There are several commercial options available for poles but a simple and cheap

solution is to buy a steel pipe 4.8 cm wide and 142 cm long driven into a concrete foundation in

the ground 70 cm deep. Dig a hole 70 cm deep by 15-20 cm wide, place the pole in the center of

the hole, fill with concrete and level with a plumb. Cover the top of the pole to avoid water

sipping into it.

Installing the rain gauge: The rain gage can be mounted on top of the pole using a special

mounting bracket (CM240). To install the rain gage remove the cover and lift upward to expose

the base, tipping mechanism and bubble level. Adjust the nuts on the CM240 bracket to level the

base precisely. Remove the rubber band securing the tipping mechanism to ensure it works freely

(IF THIS IS NOT DONE NO DATA WILL BE COLLECTED). Two pieces of flexible

tubing can be attached to the drainage plugs underneath the gauge. Cover the end of the tubes

with plastic mesh or other protection to ensure ants and other insects do not enter the rain gauge.

Routing the cables: To avoid damage to the cable it is best to bury it underground to the base of

the climate station where the data logger is. It is better to lay down "” PVC pipe 10-20 cm

below the ground and pass the cable through the PVC rather than bury it unprotected. Route the

cables through the enclosure and connect to the data logger following the wiring diagram

enclosed that comes with the data collection program.

Manual rain gauge: Install the extra manual rain gauge within the vicinity of the climate station

(at least 6 m away from it). This rain gage can be used as a backup and to check periodically for

the accuracy of extreme rainfall events (> 50 mm/hour) (see section 6.2 below).

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AWG 64 MB MEMORY CARD FOR WII Specifikace Strana 32