| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | plutao.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | J8LNKAN8RW/3E7UESP | |||
| Repository | dpi.inpe.br/plutao/2013/05.31.17.22.33 | |||
| Last Update | 2013:07.12.17.44.58 (UTC) marcelo.pazos@inpe.br | |||
| Metadata Repository | dpi.inpe.br/plutao/2013/05.31.17.22.34 | |||
| Metadata Last Update | 2018:06.04.23.39.05 (UTC) administrator | |||
| DOI | 10.1088/1748-9326/8/2/024011 | |||
| ISSN | 1748-9326 | |||
| Label | lattes: 1913003589198061 2 SilvaShArAnPeCaAr:2013:LaHeAm | |||
| Citation Key | SilvaShArAnPeCaAr:2013:LaHeAm | |||
| Title | Large-scale heterogeneity of Amazonian phenology revealed from 26-year long AVHRR/NDVI time-series  | |||
| Year | 2013 | |||
| Access Date | 2024, May 19 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 5196 KiB | |||
| 2. Context | ||||
| Author | 1 Silva, Fabrício B 2 Shimabukuro, Yosio Edemir 3 Aragão, Luiz Eduardo Oliveira e Cruz de 4 Anderson, Liana O 5 Pereira, Gabriel 6 Cardozo, Franciele 7 Arai, Egídio | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JJCQ 3 4 5 6 7 8JMKD3MGP5W/3C9JGUP | |||
| Group | 1 2 DSR-OBT-INPE-MCTI-GOV-BR 3 DSR-OBT-INPE-MCTI-GOV-BR 4 5 SER-SRE-SPG-INPE-MCTI-GOV-BR 6 7 DSR-OBT-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Institute of Surveying, Remote Sensing and Land Information, University of Natural Resources and Life Sciences (BOKU), 1190 Vienna, Austria 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 5 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 2 yosio@ltid.inpe.br 3 l.aragao@exeter.ac.uk 4 5 pereira@ufsj.edu.br | |||
| e-Mail Address | yosio@ltid.inpe.br | |||
| Journal | Environmental Research Letters | |||
| Volume | 8 | |||
| Number | 2 | |||
| Pages | 024011-024011 | |||
| Secondary Mark | A1 A2 B1 | |||
| History (UTC) | 2013-05-31 20:37:27 :: lattes -> administrator :: 2013 2016-07-03 20:22:23 :: administrator -> marcelo.pazos@inpe.br :: 2013 2016-10-12 23:24:29 :: marcelo.pazos@inpe.br -> administrator :: 2013 2018-06-04 23:39:05 :: administrator -> marcelo.pazos@inpe.br :: 2013 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | Crops Image resolution Radiometers Vegetation Landsat thematic mapper images Moderate resolution imaging spectroradiometer Ndvi temporal profiles Normalized difference vegetation index Project for on-board autonomies Retrieval accuracy Satellite Pour l'Observation de la Terre Unmixing algorithms Satellite imagery algorithm crop plant data set land cover Landsat thematic mapper MODIS NDVI sensor spatial resolution SPOT time series Brazil Sao Paulo [Brazil] Proba CORRESPONDENCE ADDRESS: Atzberger C. Institute of Surveying Remote Sensing and Land Information University of Natural Resources and Life Sciences (BOKU) 1190 Vienna Austria email: clement.atzberger@boku.ac.at | |||
| Abstract | Depiction of phenological cycles in tropical forests is critical for an understanding of seasonal patterns in carbon and water fluxes as well as the responses of vegetation to climate variations. However, the detection of clear spatially explicit phenological patterns across Amazonia has proven difficult using data from the Moderate Resolution Imaging Spectroradiometer (MODIS). In this work, we propose an alternative approach based on a 26-year time-series of the normalized difference vegetation index (NDVI) from the Advanced Very High Resolution Radiometer (AVHRR) to identify regions with homogeneous phenological cycles in Amazonia. Specifically, we aim to use a pattern recognition technique, based on temporal signal processing concepts, to map Amazonian phenoregions and to compare the identified patterns with field-derived information. Our automated method recognized 26 phenoregions with unique intra-annual seasonality. This result highlights the fact that known vegetation types in Amazonia are not only structurally different but also phenologically distinct. Flushing of new leaves observed in the field is, in most cases, associated to a continuous increase in NDVI. The peak in leaf production is normally observed from the beginning to the middle of the wet season in 66% of the field sites analyzed. The phenoregion map presented in this work gives a new perspective on the dynamics of Amazonian canopies. It is clear that the phenology across Amazonia is more variable than previously detected using remote sensing data. An understanding of the implications of this spatial heterogeneity on the seasonality of Amazonian forest processes is a crucial step towards accurately quantifying the role of tropical forests within global biogeochemical cycles. | |||
| Area | SRE | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Large-scale heterogeneity of... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Large-scale heterogeneity of... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/J8LNKAN8RW/3E7UESP | |||
| zipped data URL | http://urlib.net/zip/J8LNKAN8RW/3E7UESP | |||
| Language | en | |||
| Target File | silvalarge.pdf | |||
| User Group | administrator lattes marciana yosio@ltid.inpe.br | |||
| Reader Group | administrator marcelo.pazos@inpe.br marciana | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Read Permission | allow from all | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | iconet.com.br/banon/2006/11.26.21.31 | |||
| Next Higher Units | 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S | |||
| Citing Item List | sid.inpe.br/bibdigital/2013/10.18.22.34 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 | |||
| 6. Notes | ||||
| Notes | Erratum: Large-scale heterogeneity of Amazonian phenology revealed from 26-year long AVHRR/NDVI time-series (Environmental Research Letters (2013) 8 (024011) DOI: 10.1088/1748-9326/8/2/029502 | |||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn lineage mark month nextedition orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | marcelo.pazos@inpe.br | |||
| update | ||||