| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | marte.sid.inpe.br (namespace prefix: upn:LCETB2) |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repository | dpi.inpe.br/sbsr@80/2008/11.17.18.29.41 |
| Last Update | 2009:03.26.16.33.10 (UTC) administrator |
| Metadata Repository | dpi.inpe.br/sbsr@80/2008/11.17.18.29.42 |
| Metadata Last Update | 2022:07.07.03.46.45 (UTC) administrator |
| ISBN | 978-85-17-00044-7 |
| Citation Key | Arroyo-MoraKalaChaz:2009:SpUnFo |
| Title | Spectral unmixing of forest canopy recovery in selectively logged units in a tropical lowland forest, Costa Rica  |
| Format | DVD, On-line. |
| Year | 2009 |
| Access Date | 2025, Dec. 14 |
| Secondary Type | PRE CN |
| Number of Files | 1 |
| Size | 843 KiB |
| 2. Context | |
| Author | 1 Arroyo-Mora, Juan Pablo 2 Kalacska, Margaret 3 Chazdon, Robin |
| Affiliation | 1 McGill University 2 McGill University 3 University of Connecticut |
| Author e-Mail Address | 1 pablo.arroyo@uconn.edu 2 margaret.kalacska@mcgill.ca 3 robin.chazdon@uconn.edu |
| Editor | Epiphanio, José Carlos Neves Galvão, Lênio Soares |
| e-Mail Address | lise@dpi.inpe.br |
| Conference Name | Simpósio Brasileiro de Sensoriamento Remoto, 14 (SBSR) |
| Conference Location | Natal |
| Date | 25-30 abr. 2009 |
| Publisher | Instituto Nacional de Pesquisas Espaciais (INPE) |
| Publisher City | São José dos Campos |
| Pages | 2539-2546 |
| Book Title | Anais |
| Tertiary Type | Artigo |
| Organization | Instituto Nacional de Pesquisas Espaciais (INPE) |
| History (UTC) | 2008-11-17 18:29:42 :: pablo.arroyo@uconn.edu -> sbsr :: 2009-02-19 14:15:48 :: sbsr -> lise@dpi.inpe.br :: 2009-03-05 22:12:54 :: lise@dpi.inpe.br -> administrator :: 2009-08-05 01:58:02 :: administrator -> lise@dpi.inpe.br :: 2011-02-16 14:29:20 :: lise@dpi.inpe.br -> administrator :: 2022-07-07 03:46:45 :: administrator -> :: 2009 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Keywords | hyperspectral imagery NDVI linear spectral unmixing selective logging structural recovery Costa Rica |
| Abstract | We examined the use of linear spectral unmixing of airborne hyperspectral imagery to determine potential forest canopy recovery of three selectively logged units in a lowland humid forest in Costa Rica. The units were logged 0.3 to 3 years prior to image acquisition and the logging intensity varied from 4.8% disturbance (comparable to reduce impact logging) to 8.8% (comparable to conventional logging). Because comprehensive field data such as field spectrometer measurements are still scarce for most tropical regions, we employed an endmember selection methodology that combined the calculation of a spectral vegetation index (narrow band NDVI) and visual interpretation of the imagery. We used a number of spectra for each endmember to represent the overall variability of the classes in the scene. Our study suggests that the overall status of the forest recovery is more likely related to logging intensity rather than the time since management. Our results also suggest that in the case of logging practices that are similar to conventional logging, extraction roads had a higher impact of disturbance than tree felling gaps. In field conditions where the forest appears visually to be undisturbed or fully recovered following logging, the spectral properties of the canopy can reveal that certain areas are still damaged or are in a process of structural recovery. |
| Area | SRE |
| Type | Floresta e Vegetação |
| doc Directory Content | access |
| source Directory Content | access |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URI | upn:S4T6RL:dpi.inpe.br/sbsr@80/2008/11.17.18.29.41 |
| data URL | http://urlib.net/ibi/dpi.inpe.br/sbsr@80/2008/11.17.18.29.41 |
| zipped data URL | http://urlib.net/zip/dpi.inpe.br/sbsr@80/2008/11.17.18.29.41 |
| Language | en |
| Target File | 2539-2546.pdf |
| User Group | pablo.arroyo@uconn.edu lise@dpi.inpe.br administrator |
| Reader Group | administrator pablo.arroyo@uconn.edu |
| Visibility | shown |
| 5. Allied materials | |
| Mirror Repository | dpi.inpe.br/marte1@80/2009/05.26.17.02 |
| Host Collection | dpi.inpe.br/netuno@1905/2006/07.17.20.18 dpi.inpe.br/banon/2003/12.10.19.30 |
| 6. Notes | |
| Sponsor | Center for Environmental Sciences and Engineering (CESE) at the University of Connecticut National Science Foundation (Grant OISE-0537208) McGill University |
| Mark | 1 |
| Empty Fields | archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi edition group identifier issn label lineage nextedition nexthigherunit notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor shorttitle tertiarymark url versiontype volume |