On the demands on imaging spectrometry for the monitoring of global vegetation fluorescence from space

Kraft, Stefan; Bello, Umberto Del; Drusch, Matthias; Gabriele, A.; Harnisch, Bernd; Moreno, José

doi:10.1117/12.2024245

Cited by 18 publications

(16 citation statements)

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“…The spectral range of capture by FLORIS would be 500 to 780 nm at high spectral resolution (up to 0.3 nm) in the regions of the SIF peaks. With a continuous spatial resolution of 300 m, FLEX would provide bi-weekly global coverage of a variety of land management types and size classes (Kraft et al, 2013;Moreno, Asner, Bach, et al, 2006). The visible part of the spectrum (500-677 nm) also allows for the concurrent estimation of chlorophyll absorption and xanthophyll pigments (e.g., PRI).…”

Section: Varying All Scope Variables: Interpretation In a Global Contextmentioning

confidence: 99%

Global sensitivity analysis of the SCOPE model: What drives simulated canopy-leaving sun-induced fluorescence?

Verrelst

Rivera

Tol

et al. 2015

Remote Sensing of Environment

233

185

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Section: Varying All Scope Variables: Interpretation In a Global Contextmentioning

confidence: 99%

Global sensitivity analysis of the SCOPE model: What drives simulated canopy-leaving sun-induced fluorescence?

Verrelst

Rivera

Tol

et al. 2015

Remote Sensing of Environment

233

185

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“…Entrance pupil diameter 80 mm The basic geometrical and optical properties [6,7], which are considered for the assessment of the diffraction limitations of FLORIS, are summarized in Tab. 1.…”

Section: Parameter Variable Valuementioning

confidence: 99%

“…6 (a) is obtained in image space. Note that the y-axis is converted to the corresponding wavelength scale according to (7). The comparison with the diffraction limited irradiance reveals the radiometric error as defined in (9).…”

Section: Radiometric Errormentioning

confidence: 99%

“…Particular missions currently operating include EO-1/Hyperion, PROBA/CHRIS and HICO [1][2][3][4]. In addition, several candidates such as EnMAP, PRISMA, and FLORIS/FLEX are currently under development or in planning stage [1,[5][6][7]. The corresponding optical instruments are based on pushbroom type configuration, which enable extended acquisition of spatial as well as spectral information.…”

Section: Introductionmentioning

confidence: 99%

“…It allows for a simplified assessment of hyperspectral imaging systems and provides an estimate of the expected radiometric accuracy limitations. By applying the model to investigate diffraction effects of FLORIS, the optical payload of the Earth Explorer #8 Mission Candidate FLEX [6,7], we show that an analysis based on the diffraction limited PSF significantly overestimates the corresponding stray light error.…”

Section: Introductionmentioning

confidence: 99%

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Radiometric assessment method for diffraction effects in hyperspectral imagers applied to the earth explorer #8 mission candidate flex

Berlich

Harnisch

2017

International Conference on Space Optics — ICSO 2014

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-An accurate stray light analysis represents a crucial part in the early design phase of hyperspectral imaging systems, since scattering effects can severely limit the radiometric accuracy performance. In addition to conventional contributors including ghost images and surface scattering, i.e. caused by a residual surface micro-roughness and particle contamination, diffraction effects can result in significant radiometric errors in the spatial and spectral domain of pushbroom scanners. In this paper, we present a mathematical approach that efficiently evaluates these diffraction effects based on a Fourier analysis. It is shown that considering the conventional diffraction at the systems entrance pupil only, significantly overestimates the stray light contribution. In fact, a correct assessment necessitates taking into account the joint influence of the entrance pupil, the spectrometer slit as well as the dispersion element. We quantitatively investigate the corresponding impact on the Instrument Spectral Response Function (ISRF) of the Earth Explorer #8 Mission Candidate FLEX and analyse the expected radiometric error distribution for a typical earth observation scenario requirement.

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Overview on grating developments at ESA

2015

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On the demands on imaging spectrometry for the monitoring of global vegetation fluorescence from space

Cited by 18 publications

References 0 publications

Global sensitivity analysis of the SCOPE model: What drives simulated canopy-leaving sun-induced fluorescence?

Global sensitivity analysis of the SCOPE model: What drives simulated canopy-leaving sun-induced fluorescence?

Radiometric assessment method for diffraction effects in hyperspectral imagers applied to the earth explorer #8 mission candidate flex

Overview on grating developments at ESA

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