A geosynchronous imaging Fourier transform spectrometer (GIFTS) for hyperspectral atmospheric remote sensing: instrument overview and preliminary performance results

Elwell, John; Cantwell, Greg; Scott, Deron; Esplin, Roy W.; Hansen, Glen; Jensen, Scott; Jensen, Mark; Brown, Steve B.; Zollinger, Lorin; Thurgood, V. A.; Esplin, Mark P.; Huppi, Ronald J.; Bingham, Gail E.; Revercomb, Henry E.; Best, Fred A.; Tobin, David C.; Taylor, Joe K.; Knuteson, Robert O.; Smith, William L.; Reisse, Robert A.; Hooker, R. Brian

doi:10.1117/12.684135

Cited by 17 publications

(8 citation statements)

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“…TES is designed to observe part of the atmospheric limb simultaneously with a linear detector array with 16 elements. Larger linear and two-dimensional infrared detector arrays have become available in the last 2 decades and were used in a nadir sounding operational grating spectrometer (Aumann et al, 2003) and in a prototype imaging FTS nadir sounder for atmospheric research (Elwell et al, 2006). Development of an operational imaging FTS nadir sounder has commenced (Rodriguez et al, 2009).…”

Section: F Friedl-vallon Et Al: Instrument Concept Of Gloriamentioning

confidence: 99%

Instrument concept of the imaging Fourier transform spectrometer GLORIA

et al. 2014

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Abstract. The Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) is an imaging limb emission sounder operating in the thermal infrared region. It is designed to provide measurements of the upper troposphere/lower stratosphere with high spatial and high spectral resolution. The instrument consists of an imaging Fourier transform spectrometer integrated into a gimbal. The assembly can be mounted in the belly pod of the German High Altitude and Long Range research aircraft (HALO) and in instrument bays of the Russian M55 Geophysica. Measurements are made in two distinct modes: the chemistry mode emphasises chemical analysis with high spectral resolution, and the dynamics mode focuses on dynamical processes of the atmosphere with very high spatial resolution. In addition, the instrument allows tomographic analyses of air volumes. The first measurement campaigns have shown compliance with key performance and operational requirements.

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Section: F Friedl-vallon Et Al: Instrument Concept Of Gloriamentioning

confidence: 99%

Instrument concept of the imaging Fourier transform spectrometer GLORIA

et al. 2014

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“…The GIFTS EDU was designed and fabricated by the Space Dynamics Laboratory at Utah State University (SDL/USU) to demonstrate new and emerging sensor and data processing technologies with the goal of making revolutionary improvements in meteorological observational capability and forecasting accuracy 1,2 . The GIFTS EDU includes a cryogenically cooled imaging Fourier transform spectrometer (FTS) with programmable spectral resolution designed to provide the radiometric accuracy and atmospheric sounding precision required to meet the next generation GOES sounder requirements.…”

Section: Introductionmentioning

confidence: 99%

Modeled vs. actual performance of the Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS)

et al. 2006

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The NASA Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) has been completed as an Engineering Demonstration Unit (EDU) and has recently finished thermal vacuum testing and calibration. The GIFTS EDU was designed to demonstrate new and emerging sensor and data processing technologies with the goal of making revolutionary improvements in meteorological observational capability and forecasting accuracy. The GIFTS EDU includes a cooled (150 K), imaging FTS designed to provide the radiometric accuracy and atmospheric sounding precision required to meet the next generation GOES sounder requirements. This paper discusses a GIFTS sensor response model and its validation during thermal vacuum testing and calibration.The GIFTS sensor response model presented here is a component-based simulation written in IDL with the model component characteristics updated as actual hardware has become available. We discuss our calibration approach, calibration hardware used, and preliminary system performance, including NESR, spectral radiance responsivity, and instrument line shape. A comparison of the model predictions and hardware performance provides useful insight into the fidelity of the design approach.

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“…The two-axis scene selection mirror, although not implemented in the EDU, is specified to provide a field-of-regard (FOR) of ±12.9° in both the cross and vertical Earth directions, allowing clear space views on all sides of the globe. Information on other sub-systems, such as Laser metrology, Fourier transform spectrometer (FTS), telescope and relay optics, aft optics/electronics, mechanical cooler, visible camera, and on-board calibration sources, are described and found in Elwell et al [3]. …”

Section: Gifts Edu Instrumentationmentioning

confidence: 99%

“…A detailed description of the GIFTS EDU instrumentation is provided by Elwell et al [3]. A diagram of the optical system is shown in Figure 1.…”

Section: Gifts Edu Instrumentationmentioning

confidence: 99%

Geosynchronous imaging Fourier transform spectrometer (GIFTS): Imaging and tracking capability

Zhou

Larar

Liu

et al. 2007

2007 IEEE International Geoscience and Remote Sensing Symposium

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Abstract-The geosynchronous-imaging Fourier transform spectrometer (GIFTS) engineering demonstration unit (EDU) is an imaging infrared spectrometer designed for atmospheric soundings. It measures the infrared spectrum in two spectral bands (14.6 to 8.8 µ µ µ µm, 6.0 to 4.4 µ µ µ µm) using two 128× × × ×128 detector arrays with a spectral resolution of 0.57 cm -1 with a scan duration of ~11 seconds. From a geosynchronous orbit, the instrument will have the capability of taking successive measurements of such data to scan desired regions of the globe, from which atmospheric status, cloud parameters, wind field profiles, and other derived products can be retrieved. The GIFTS EDU provides a flexible and accurate testbed for the new challenges of the emerging hyperspectral era. The EDU ground-based measurement experiment, held in Logan, Utah during September 2006, demonstrated its extensive capabilities and potential for geosynchronous and other applications (e.g., Earth observing environmental measurements). This paper addresses the experiment objectives and overall performance of the sensor system with a focus on the GIFTS EDU imaging capability and proof of the GIFTS measurement concept.

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A geosynchronous imaging Fourier transform spectrometer (GIFTS) for hyperspectral atmospheric remote sensing: instrument overview and preliminary performance results

Cited by 17 publications

References 0 publications

Instrument concept of the imaging Fourier transform spectrometer GLORIA

Instrument concept of the imaging Fourier transform spectrometer GLORIA

Modeled vs. actual performance of the Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS)

Geosynchronous imaging Fourier transform spectrometer (GIFTS): Imaging and tracking capability

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