Analyses of Impact of Needle Surface Properties on Estimation of Needle Absorption Spectrum

 |  Login

Show simple item record

dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Yang, Bin Knyazikhin, Yuri Lin, Yi Yan, Kai Chen, Chi Park, Taejin Choi, Sungho Mottus, Matti Rautiainen, Miina Myneni, Ranga B. Yan, Lei 2016-11-08T12:10:44Z 2016-07
dc.identifier.citation Yang , B , Knyazikhin , Y , Lin , Y , Yan , K , Chen , C , Park , T , Choi , S , Mottus , M , Rautiainen , M , Myneni , R B & Yan , L 2016 , ' Analyses of Impact of Needle Surface Properties on Estimation of Needle Absorption Spectrum : Case Study with Coniferous Needle and Shoot Samples ' REMOTE SENSING , vol 8 , no. 7 , 563 . DOI: 10.3390/rs8070563 en
dc.identifier.issn 2072-4292
dc.identifier.other PURE UUID: 6b8d08c4-4079-4ee1-a2f1-c65cf532d073
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract Leaf scattering spectrum is the key optical variable that conveys information about leaf absorbing constituents from remote sensing. It cannot be directly measured from space because the radiation scattered from leaves is affected by the 3D canopy structure. In addition, some radiation is specularly reflected at the surface of leaves. This portion of reflected radiation is partly polarized, does not interact with pigments inside the leaf and therefore contains no information about its interior. Very little empirical data are available on the spectral and angular scattering properties of leaf surfaces. Whereas canopy-structure effects are well understood, the impact of the leaf surface reflectance on estimation of leaf absorption spectra remains uncertain. This paper presents empirical and theoretical analyses of angular, spectral, and polarimetric measurements of light reflected by needles and shoots of Pinus koraiensis and Picea koraiensis species. Our results suggest that ignoring the leaf surface reflectedradiation can result in an inaccurate estimation of the leaf absorption spectrum. Polarization measurements may be useful to account for leaf surface effects because radiation reflected from the leaf surface is partly polarized, whereas that from the leaf interior is not. en
dc.format.extent 17
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries REMOTE SENSING en
dc.relation.ispartofseries Volume 8, issue 7 en
dc.rights openAccess en
dc.subject.other 1171 Geosciences en
dc.subject.other 114 Physical sciences en
dc.title Analyses of Impact of Needle Surface Properties on Estimation of Needle Absorption Spectrum en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Boston University
dc.contributor.department Peking University
dc.contributor.department Beijing Normal University
dc.contributor.department University of Helsinki
dc.contributor.department Department of Built Environment
dc.contributor.department Department of Radio Science and Engineering en
dc.subject.keyword leaf albedo
dc.subject.keyword leaf biochemistry
dc.subject.keyword leaf surface reflectance
dc.subject.keyword polarization measurements
dc.subject.keyword OPTICAL-PROPERTIES
dc.subject.keyword LEAF REFLECTANCE
dc.subject.keyword CANOPY
dc.subject.keyword MODEL
dc.subject.keyword VEGETATION
dc.subject.keyword NITROGEN
dc.subject.keyword DIFFERENTIATION
dc.subject.keyword INVARIANTS
dc.subject.keyword DIFFUSE
dc.subject.keyword 1171 Geosciences
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201611085526
dc.identifier.doi 10.3390/rs8070563

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search archive

Advanced Search

article-iconSubmit a publication


My Account