Spectroradiometric Requirements for the Reflective Module of the Airborne Spectrometer ARES
Müller, A. and Richter, R. and Habermeyer, M. and Dech, S. and Segl, K. and Kaufmann, H. (2005) Spectroradiometric Requirements for the Reflective Module of the Airborne Spectrometer ARES. IEEE Geoscience and Remote Sensing Letters, 2 (3), pp. 329-332.
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The Airborne Reflective/Emissive Spectrometer is specified as a whisk-broom imaging spectrometer for remote sensing of land surfaces covering the wavelength regions 0.47–2.45 m and 8–12 m with 160 spectral bands. The instrument is being built by Integrated Spectronics, financed by the German Aerospace Center(DLR) and the GeoResearch Centre Potsdam (GFZ) and will be available to the scientific community from end 2005 on. The spectroradiometric design is based on scientific requirements derived from three main application scenarios comprising vegetation, soil, and mineral sciences. Two of these are described in this letter. Measured or modeled reflectance spectra are input to a simulation model that calculates at-sensor radiance spectra, resamples them with the channel-specific response functions, adds different amounts of noise in the radiance domain, and performs a retrieval to get the corresponding noisy surface reflectance spectra. The retrieval results as a function of the sensor noise level are compared with the accuracy requirements imposed by the different application fields taking into account the technical boundary conditions. The final specifications account for the most demanding requirements of the three application fields: a spectral sampling distance of 13–14 nm in the 470–1800 nm region, and 12 nm in the 2000–2450-nm region. The required noise-equivalent radiances are 5, 3, and 2 nW cm-2 sr-1 nm-1 for the spectral regions 470–1000, 1000–1800, and 2000–2450 nm, respectively.
|Title:||Spectroradiometric Requirements for the Reflective Module of the Airborne Spectrometer ARES|
|Date:||03 July 2005|
|Journal or Publication Title:||IEEE Geoscience and Remote Sensing Letters|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 329-332|
|Keywords:||Airborne Reflective/Emissive Spectrometer (ARES), environmental remote sensing, imaging spectrometer, surface reflectance|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||W - Vorhaben Geowissenschaftl. Fernerkundungs- und GIS-Verfahren (old)|
|Institutes and Institutions:||German Remote Sensing Data Center|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||11 Jan 2006|
|Last Modified:||06 Jan 2010 12:28|
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