Einzmann, Kathrin und Wai-Tim, Ng und Immitzer, Markus und Bachmann, Martin und Pinnel, Nicole und Atzberger, Clement (2014) Method Analysis for Collecting and Processing in-situ Hyperspectral Needle Reflectance Data for Monitoring Norway Spruce. Photogrammetrie Fernerkundung Geoinformation (5), 0423-0434. E. Schweizerbartsche Verlagsbuchhandlung. doi: 10.1127/1432-8364/2014/0234. ISSN 1432-8364.
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Kurzfassung
Forest damage induced by bark beetle attacks can cause major economic losses in forest- ry. Hyperspectral remote sensing data and state of the art very high spatial resolution satellite data of- fer a great potential for assessing tree vitality. How- ever, a better understanding of the effects of vitality decrease and its impact on the spectral behaviour of needles is needed. Filling this knowledge gap can make a significant contribution to improve the in- terpretation of remote sensing data. However, it is still unclear which method for needle spectra col- lection is most suitable. In this work, two methods for spectral reflectance measurements of Norway spruce needles using portable spectroradiometers were tested and analysed: using a classical fore op- tic and a so-called contact probe. The spectral re- flectance data were evaluated with different statis- tical similarity measure techniques. Besides ana- lysing the measurements themselves, the methods were compared in terms of their practicality. Fur- thermore, the impact of storage on the reflection behaviour was investigated. The spectral measure- ments were performed in the field as well as in a laboratory and repeated three times during the 2013 growing season. Based on the obtained results we recommend measuring needle samples with the contact probe of portable spectroradiometers.
elib-URL des Eintrags: | https://elib.dlr.de/91376/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Titel: | Method Analysis for Collecting and Processing in-situ Hyperspectral Needle Reflectance Data for Monitoring Norway Spruce | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | Oktober 2014 | ||||||||||||||||||||||||||||
Erschienen in: | Photogrammetrie Fernerkundung Geoinformation | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
DOI: | 10.1127/1432-8364/2014/0234 | ||||||||||||||||||||||||||||
Seitenbereich: | 0423-0434 | ||||||||||||||||||||||||||||
Verlag: | E. Schweizerbartsche Verlagsbuchhandlung | ||||||||||||||||||||||||||||
ISSN: | 1432-8364 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | in-situ measurements, needle spectra, Norway spruce, portable spectroradiometer, tree vitality, hyperspectral | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Vorhaben Fernerkundung der Landoberfläche (alt) | ||||||||||||||||||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Deutsches Fernerkundungsdatenzentrum > Landoberfläche | ||||||||||||||||||||||||||||
Hinterlegt von: | Bachmann, Dr.rer.nat. Martin | ||||||||||||||||||||||||||||
Hinterlegt am: | 06 Nov 2014 09:40 | ||||||||||||||||||||||||||||
Letzte Änderung: | 01 Okt 2020 08:50 |
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