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Net Radiometers

Net Radiometers
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FOR MEASUREMENT OF THE ENERGY BALANCE One-component and four-component instruments Reliable all-weather performance Light weight and robust Unique ventilation system

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Net radiation is the balance between incoming radiation from the sun and sky and outgoing radiation from the ground. Short-wave radiation of 0.3 to 3 µm wavelength reaches the Earth’s surface, where some is reected and the rest of the energy is absorbed by the surface. Incoming long-wave Far Infrared (FIR) radiation from 4.5 to more than 40 µm is also absorbed by the surface, which heats up and emits FIR back to the sky. The main applications for net radiometers are in agro-meteorology, in particular for the study of evapotranspiration and in climatology, meteorology and hydrology for the...

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The integrated 10 W heating can be switched on by the operator when required. This raises the temperature of the domes and windows slightly above ambient to prevent the formation of dew and frost and to disperse precipitation. The ventilation fan and heater run from 12 VDC and can be operated by the accessory CVP 2 universal AC-DC power adaptor. CMB 1 Mounting Bracket For attaching mounting rods of 12 to 20 mm diameter to poles, masts or walls. The radiometer can be levelled by rotating and tilting the rod. The bracket includes u-bolts for xing to poles and masts from 22 to 60 mm diameter....

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Number of signal outputs 4 - incoming and reected short-wave radiation downward and upward long-wave radiation Pyrgeometer temperature sensors Non-linearity (over full range) Temperature dependence of sensitivity 7 to 20 µV/W/m² short-wave 5 to 10 µV/W/m² long-wave Operating temperature Spectral range (50 % points) 180 ° upper and lower sensor 180 ° short-wave upper sensor 170 ° short-wave lower sensor 180 ° long-wave upper sensor 150 ° long-wave lower sensor Standard cable Cable lenght options Weight with rod (excluding cable(s)) Note: The performance specications quoted are worst-case...

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