Net radiation sensor RA01 by Ingenieursbureau Wittich & Visser

RA01 is a 2-component radiation sensor that is used for scientific-grade energy balance studies. The instrument has separate measurements of solar (Short Wave or SW) and Far Infra-Red (Long Wave or LW) radiation. Combined with estimates of SW solar albedo- and of surface temperature, this instrument can also be used for estimation of net-radiation. The advantage in this approach are reduction of costs and independence from local surface properties.