Specifications

TEAM Climate Monitoring Protocol 3.1
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. Refers to the surface air temperature without the influence of direct solar
radiation. Also defined as the temperature reading by a thermometer placed in a shaded shelter 1-
2 m above the ground.
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.
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(see Radiation Shield)
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.
.
American Wire Gauge, which is a standardized way to measure wire diameter for round,
electrical, solid, conducting wire. The lower the AWG, the thicker the wire. For more information
and a table of physical and electrical properties of wires of different gauges see
http://en.wikipedia.org/wiki/American_wire_gauge .
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A rechargeable battery is an essential component of the climate station that allows it to
work during cloudy conditions and at night. We recommend using a 12 V DC 100 Amp-h sealed
battery to provide enough charge for the system, in particular the aspirated radiation shield
(consumes 450 mA or 6 Amp-h in a 24 h period). The battery should be enclosed in a enclosure
that allows some flow of air (and avoid hydrogen gas buildup) but sturdy enough to protect it from
the elements (rain, heat).
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A process to adjust measurements from a sensor to a universally defined standard
of measurement. For example, a thermometer can be calibrated by measuring the boiling point of
distilled water at 0 m above sea level and re-setting this value to 100 °C. Each sensor follows
specific calibration procedures at defined intervals of time to minimize measurement bias.
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A device that maintains a load voltage nearly constant over a range of
variations of input voltage and current. A charge regulator is installed between the solar panel and
the battery to charge it in full without overcharge in varying conditions while preventing reverse
current during the night (from the battery to the solar panel).
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Field forms to verify and collect information about the
physical status of a climate station. This includes condition of the climate base and its surrounding
area, the data logger and enclosure, the sensors and the power sources of the climate station.
Climate logs should be filled every 2-4 weeks.
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. The climate station is defined here as the set of sensors, data logger, power
supplies and physical base (tower/tripod) that is assembled to monitor climatological variables
continuously at a fixed point in space.
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. Computer that receives signals (electrical, pulse, etc) from the sensors and
transforms them into measurements with units (°C, mm, etc) over an integrated period of time. The
datalogger can also regulate the function of some sensors or instruments by providing or cutting
power to them as applicable.