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Article: Correlation analysis of hyperspectral absorption features with the water status of coast live oak leaves
Title | Correlation analysis of hyperspectral absorption features with the water status of coast live oak leaves |
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Authors | |
Keywords | Absorption features Water status Coast live oak Hyperspectral data |
Issue Date | 2002 |
Citation | Proceedings of SPIE - The International Society for Optical Engineering, 2002, v. 4480, p. 147-153 How to Cite? |
Abstract | A total of 139 reflectance spectra (between 350 and 2500 nm) from coast live oak (Quercus Agrifolia) leaves were measured in the laboratory with a spectrometer FieldSpec®Pro FR. Correlation analysis was conducted between absorption features, three-band ratio indices derived from the spectra and corresponding relative water content (RWC, %) of oak leaves. The experimental results indicate that there exist linear relationships between the RWC of oak leaves and absorption feature parameters: wavelength position (WAVE), absorption feature depth (DEP), width (WID) and the multiplication of DEP and WID (AREA) at the 975 nm, 1200 nm and 1750 nm positions and two three-band ratio indices: RATIO975 and RATIO1200, derived at 975 nm and 1200 nm. AREA has a higher and more stable correlation with RWC compared to other features. It is worthy of noting that the two three-band ratio indices, RATIO975 and RATIO1200, may have-potential application in assessing water status in vegetation. © Society of Photo-Optical Instrumentation Engineers. |
Persistent Identifier | http://hdl.handle.net/10722/296925 |
ISSN | 2023 SCImago Journal Rankings: 0.152 |
DC Field | Value | Language |
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dc.contributor.author | Pu, Ruiliang | - |
dc.contributor.author | Ge, Shaokui | - |
dc.contributor.author | Kelly, Nina M. | - |
dc.contributor.author | Gong, Peng | - |
dc.date.accessioned | 2021-02-25T15:16:59Z | - |
dc.date.available | 2021-02-25T15:16:59Z | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Proceedings of SPIE - The International Society for Optical Engineering, 2002, v. 4480, p. 147-153 | - |
dc.identifier.issn | 0277-786X | - |
dc.identifier.uri | http://hdl.handle.net/10722/296925 | - |
dc.description.abstract | A total of 139 reflectance spectra (between 350 and 2500 nm) from coast live oak (Quercus Agrifolia) leaves were measured in the laboratory with a spectrometer FieldSpec®Pro FR. Correlation analysis was conducted between absorption features, three-band ratio indices derived from the spectra and corresponding relative water content (RWC, %) of oak leaves. The experimental results indicate that there exist linear relationships between the RWC of oak leaves and absorption feature parameters: wavelength position (WAVE), absorption feature depth (DEP), width (WID) and the multiplication of DEP and WID (AREA) at the 975 nm, 1200 nm and 1750 nm positions and two three-band ratio indices: RATIO975 and RATIO1200, derived at 975 nm and 1200 nm. AREA has a higher and more stable correlation with RWC compared to other features. It is worthy of noting that the two three-band ratio indices, RATIO975 and RATIO1200, may have-potential application in assessing water status in vegetation. © Society of Photo-Optical Instrumentation Engineers. | - |
dc.language | eng | - |
dc.relation.ispartof | Proceedings of SPIE - The International Society for Optical Engineering | - |
dc.subject | Absorption features | - |
dc.subject | Water status | - |
dc.subject | Coast live oak | - |
dc.subject | Hyperspectral data | - |
dc.title | Correlation analysis of hyperspectral absorption features with the water status of coast live oak leaves | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1117/12.453334 | - |
dc.identifier.scopus | eid_2-s2.0-0036397966 | - |
dc.identifier.volume | 4480 | - |
dc.identifier.spage | 147 | - |
dc.identifier.epage | 153 | - |
dc.identifier.issnl | 0277-786X | - |