title: Design and calibration of field deployable ground-viewing radiometers.
abstract: Three improved ground-viewing radiometers were built to support the Radiometric Calibration Test Site (RadCaTS) developed by the Remote Sensing Group (RSG) at the University of Arizona. Improved over previous light-emitting diode based versions, these filter-based radiometers employ seven silicon detectors and one InGaAs detector covering a wavelength range of 400-1550 nm. They are temperature controlled and designed for greater stability and lower noise. The radiometer systems show signal-to-noise ratios of greater than 1000 for all eight channels at typical field calibration signal levels. Predeployment laboratory radiance calibrations using a 1 m spherical integrating source compare well with in situ field calibrations using the solar radiation based calibration method; all bands are within ±2.7% for the case tested.
authors: Remote Sensing Group, College of Optical Sciences, University of Arizona, 1630 East University Boulevard, Tucson, AZ 85721, USA. nanderson@optics.arizona.edu
authors: Nikolaus
authors: N
authors: Anderson
authors: Jeffrey
authors: J
authors: Czapla-Myers
authors: Nathan
authors: N
authors: Leisso
authors: Stuart
authors: S
authors: Biggar
authors: Charles
authors: C
authors: Burkhart
authors: Rob
authors: R
authors: Kingston
authors: Kurtis
authors: K
authors: Thome