Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B8, 1407-1408, 2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
14 Oct 2016
J. Leckey National Aeronautics and Space Agency (NASA) Langley Research Center (LARC), Bldg. 1202 MS 468, Hampton, Virginia 23681 USA
Keywords: Infrared, Far-Infrared, Radiance, Climate, Atmosphere, Standard, SI Traceable, Measurement Abstract. In a world of changing climate, political uncertainty, and ever-changing budgets, the benefit of measurements traceable to SI standards increases by the day. To truly resolve climate change trends on a decadal time scale, on-orbit measurements need to be referenced to something that is both absolute and unchanging. One such mission is the Climate Absolute Radiance and Refractivity Observatory (CLARREO) that will measure a variety of climate variables with an unprecedented accuracy to definitively quantify climate change. In the CLARREO mission, we will utilize phase change cells in which a material is melted to calibrate the temperature of a blackbody that can then be observed by a spectrometer. A material’s melting point is an unchanging physical constant that, through a series of transfers, can ultimately calibrate a spectrometer on an absolute scale. CLARREO consists of two primary instruments: an infrared (IR) spectrometer and a reflected solar (RS) spectrometer. The mission will contain orbiting radiometers with sufficient accuracy to calibrate other space-based instrumentation and thus transferring the absolute traceability. The status of various mission options will be presented.
Conference paper (PDF, 595 KB)

Citation: Leckey, J.: ABSOLUTE STANDARDS FOR CLIMATE MEASUREMENTS, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B8, 1407-1408,, 2016.

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