| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | J8LNKAN8RW/39RSE3E |
| Repository | dpi.inpe.br/plutao/2011/06.11.14.26 (restricted access) |
| Last Update | 2011:12.16.17.54.54 (UTC) administrator |
| Metadata Repository | dpi.inpe.br/plutao/2011/06.11.14.26.30 |
| Metadata Last Update | 2018:06.05.00.01.21 (UTC) administrator |
| Secondary Key | INPE--PRE/ |
| DOI | 10.1080/01431160903475217 |
| ISSN | 0143-1161 |
| Label | lattes: 1646956319628219 2 SantosTreu:2011:StVoTr |
| Citation Key | GoncalvesSantTreu:2011:StVoTr |
| Title | Stem volume of tropical forests from polarimetric radar  |
| Year | 2011 |
| Month | Jan. |
| Access Date | 2024, May 02 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 6081 KiB |
| 2. Context | |
| Author | 1 Goncalves, F. G 2 Santos, Joao Roberto dos 3 Treuhaft, Robert |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JHF4 |
| Group | 1 2 DSR-OBT-INPE-MCT-BR |
| Affiliation | 1 Department of Forest Ecosystems and Society, Oregon State University, Corvallis, USA 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA |
| Author e-Mail Address | 1 2 jroberto@ltid.inpe.br |
| e-Mail Address | jroberto@ltid.inpe.br |
| Journal | International Journal of Remote Sensing |
| Volume | 32 |
| Number | 2 |
| Pages | 503-522 |
| Secondary Mark | B3_BIOTECNOLOGIA A1_CIÊNCIA_DA_COMPUTAÇÃO A2_CIÊNCIAS_AGRÁRIAS_I B2_CIÊNCIAS_BIOLÓGICAS_I B1_ECOLOGIA_E_MEIO_AMBIENTE B1_ENGENHARIAS_I B2_ENGENHARIAS_II B1_ENGENHARIAS_III A2_ENGENHARIAS_IV B1_GEOCIÊNCIAS A1_GEOGRAFIA A2_INTERDISCIPLINAR B1_ODONTOLOGIA A1_PLANEJAMENTO_URBANO_E_REGIONAL_/_DEMOGRAFIA A2_SAÚDE_COLETIVA |
| History (UTC) | 2011-06-11 17:43:48 :: lattes -> administrator :: 2011 2011-06-15 02:40:04 :: administrator -> marciana :: 2011 2011-12-16 17:55:08 :: marciana -> administrator :: 2011 2018-06-05 00:01:21 :: administrator -> marciana :: 2011 |
| 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 | FLORESTA Nacional do Tapajos (Brazil) PARA (Brazil : State) BRAZIL forest inventory SAR data tropical forest polarimetry Amazonia. forest management community forests radar backscattering regression analysis |
| Abstract | In this study, we investigated the potential of polarimetric synthetic aperture radar (PolSAR) data for the estimation of stem volume in tropical forests. We used calibrated L-band, high incidence angle data from the airborne system SAR-R99B, acquired over an experimental area in the Tapajos National Forest, Para, Brazil. To evaluate the potential of PolSAR data for this application we used regression analysis, in which first-order models were fit to predict stem volume per hectare, as determined from field measurements. Unlike previous studies in tropical forests, the set of potential explanatory variables included a series of PolSAR attributes based on phase information, in addition to power measurements. Model selection techniques based on coefficient of determination (R2) and mean square error (MSE) identified several useful subsets of explanatory variables for stem volume estimation, including backscattering coefficient in HH polarization, cross-polarized ratio, HH-VV phase difference, polarimetric coherence, and the volume scatter component of the Freeman decomposition. Evaluation of the selected models indicated that PolSAR data can be used to quantify stem volume in the study site with a root mean square error (RMSE) of about 20-29 m3 ha-1, corresponding to 8-12% of the mean stem volume. External validation using independent data showed average prediction errors of less than 14%. Saturation effects in measured versus modelled volume were not observed up to volumes of 308 m3 ha-1 (biomasses of ∼357 Mg ha-1). However, no formal assessment of saturation was possible due to limitations of the volume range of the dataset. |
| Area | SRE |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Stem volume of... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | GOLCALVES STEM.pdf |
| User Group | administrator lattes marciana |
| Visibility | shown |
| Archiving Policy | denypublisher denyfinaldraft12 |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ER446E |
| Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX. |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Notes | Setores de Atividade: Pesquisa e desenvolvimento científico, Produção Florestal. |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn lineage mark mirrorrepository nextedition orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | marciana |
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