Design and calibration of field deployable ground-viewing radiometers

Nikolaus Anderson, Jeffrey Czapla-Myers, Nathan Leisso, Stuart Biggar, Charles Burkhart, Rob Kingston, Kurtis Thome

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)231-240
Number of pages10
JournalApplied optics
Volume52
Issue number2
DOIs
StatePublished - Jan 10 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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