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A panchromatic imaging fourier transform spectrometer for the NASA Geostationary Coastal and Air Pollution Events Mission

Show simple item record Wu, Yen-Hung Key, Richard Sander, Stanley Blavier, Jean-Francois Rider, David 2013-09-09T20:14:29Z 2013-09-09T20:14:29Z 2011-08-24
dc.identifier.citation SPIE Optics + Photonics 2011, San Diego, California, August 20-25, 2011. en_US
dc.identifier.clearanceno 11-3845
dc.description.abstract This paper summarizes the design and development of the Panchromatic Imaging Fourier Transform Spectrometer (PanFTS) for the NASA Geostationary Coastal and Air Pollution Events (GEO-CAPE) Mission. The PanFTS instrument will advance the understanding of the global climate and atmospheric chemistry by measuring spectrally resolved outgoing thermal and reflected solar radiation. With continuous spectral coverage from the near-ultraviolet through the thermal infrared, this instrument is designed to measure pollutants, greenhouse gases, and aerosols as called for by the U.S. National Research Council Decadal Survey; Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond1. The PanFTS instrument is a hybrid instrument based on spectrometers like the Tropospheric Emissions Spectrometer (TES) that measures thermal emission, and those like the Orbiting Carbon Observatory (OCO), and the Ozone Monitoring Instrument (OMI) that measure scattered solar radiation. Simultaneous measurements over the broad spectral range from IR to UV is accomplished by a two sided interferometer with separate optical trains and detectors for the UV-visible and IR spectral domains. This allows each side of the instrument to be independently optimized for its respective spectral domain. The overall interferometer design is compact because the two sides share a single high precision cryogenic optical path difference mechanism (OPDM) and metrology laser as well as a number of other instrument systems including the line-of-sight pointing mirror, the data management system, thermal control system, electrical system, and the mechanical structure. The PanFTS breadboard instrument has been tested in the laboratory and demonstrated the basic functionality for simultaneous measurements in the visible and IR. It is set to begin operations in the field at the California Laboratory for Atmospheric Remote Sensing (CLARS) observatory on Mt. Wilson measuring the atmospheric chemistry across the Los Angeles basin. Development has begun on a flight size PanFTS engineering model (EM) that addresses all critical scaling issues and demonstrates operation over the full spectral range of the flight instrument which will show the PanFTS instrument design is mature. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011. en_US
dc.subject Imaging spectrometer( en_US
dc.subject Fourier transform spectrometer en_US
dc.subject Michelson interferometer en_US
dc.subject air pollution monitoring en_US
dc.subject greenhouse gases en_US
dc.subject aerosols en_US
dc.title A panchromatic imaging fourier transform spectrometer for the NASA Geostationary Coastal and Air Pollution Events Mission en_US
dc.type Preprint en_US

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