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Groetsch, Philipp M. M. und Gege, Peter und Simis, Stefan G. H. und Eleveld, Marieke A. und Peters, Steef W. M. (2017) Variability of adjacency effects in sky reflectance measurements. Optics Letters, 42 (17), Seiten 3359-3362. Optical Society of America. doi: 10.1364/OL.42.003359. ISSN 0146-9592.
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Kurzfassung
Sky reflectance Rsky is used to correct in situ reflectance measurements in the remote detection of water color. We analyzed the directional and spectral variability in Rsky due to adjacency effects against an atmospheric radiance model. The analysis is based on one year of semi-continuous Rsky observations that were recorded in two azimuth directions. Adjacency effects contributed to Rsky dependence on season and viewing angle and predominantly in the near-infrared (NIR). For our test area, adjacency effects spectrally resembled a generic Vegetation spectrum. The adjacency effect was weakly dependent on the magnitude of Rayleigh- and aerosol-scattered radiance. The reflectance differed between viewing directions 5.4 +/- 6.3% for adjacency effects and 21.0 +/- 19.8% for Rayleigh- and aerosol-scattered Rsky in the NIR. Under which conditions in situ water reflectance observations require dedicated correction for adjacency effects is discussed. We provide an open source implementation of our method to aid identification of such conditions.
| elib-URL des Eintrags: | https://elib.dlr.de/113899/ | ||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
| Zusätzliche Informationen: | Developed Software available here: http://doi .org/10.5281/zenodo.836756 | ||||||||||||||||||||||||
| Titel: | Variability of adjacency effects in sky reflectance measurements | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 1 September 2017 | ||||||||||||||||||||||||
| Erschienen in: | Optics Letters | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||||||
| Band: | 42 | ||||||||||||||||||||||||
| DOI: | 10.1364/OL.42.003359 | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 3359-3362 | ||||||||||||||||||||||||
| Verlag: | Optical Society of America | ||||||||||||||||||||||||
| ISSN: | 0146-9592 | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | Atmospheric optics, oceanic optics, remote sensing, sensors, atmospheric correction, radiative transfer, water | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||
| HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | Vorhaben Spektroskopische Verfahren in der Fernerkundung (alt) | ||||||||||||||||||||||||
| Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Methodik der Fernerkundung > Experimentelle Verfahren | ||||||||||||||||||||||||
| Hinterlegt von: | Gege, Dr.rer.nat. Peter | ||||||||||||||||||||||||
| Hinterlegt am: | 05 Sep 2017 11:11 | ||||||||||||||||||||||||
| Letzte Änderung: | 20 Jun 2021 15:49 |
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- Variability of adjacency effects in sky reflectance measurements. (deposited 05 Sep 2017 11:11) [Gegenwärtig angezeigt]
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