| 1. Identity statement | |
| Reference Type | ePrint (Electronic Source) |
| Site | mtc-m16c.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZQjxQKY/HucDL |
| Repository | sid.inpe.br/ePrint@80/2005/09.16.20.56 |
| Last Update | 2005:09.16.20.56.27 (UTC) administrator |
| Metadata Repository | sid.inpe.br/ePrint@80/2005/09.16.20.56.19 |
| Metadata Last Update | 2022:03.26.18.04.35 (UTC) administrator |
| Citation Key | RossatoAlvaFerrToma::EvEsBr |
| Title | Evapotranspiration estimation in the Brazil using NDVI data  |
| Secondary Date | 20050916 |
| Last Update Date | 2005-09-17 |
| Access Date | 2024, May 16 |
| Type of Medium | On-line |
| Number of Files | 1 |
| Size | 1438 KiB |
| 2. Context | |
| Author | 1 Rossato, Luciana 2 Alvala, Regina Celia dos Santos 3 Ferreira, Nelson Jesus 4 Tomasella, Javier |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JJ59 3 8JMKD3MGP5W/3C9JHUB 4 8JMKD3MGP5W/3C9JHE3 |
| Group | 1 DMA-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Sao Jose dos Campos - 12227-010-Sp-Brasil |
| e-Mail Address | atus@cptec.inpe.br |
| Producer | Instituto Nacional de Pesquisas Espaciais |
| City | São José dos Campos |
| History (UTC) | 2008-04-26 01:39:59 :: fabia -> administrator :: 2022-03-26 18:04:35 :: administrator -> marciana :: |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | work-in-progress |
| Transferable | 1 |
| Keywords | evapotranspiration normalized difference vegetation index AVHRR sensor |
| Abstract | The purpose of this study is to analyze the monthly mean spatial and temporal distribution of evapotranspiration (ET) during the 1981-2000 period in Brazil using remotely sensed data. The methodology involves the use of a relationship between ET and Normalized Difference Vegetation Index (NDVI). ET was estimated for the main Brazilian biomes through the Penman-Monteith method using climatological data from 194 Brazilian meteorological stations during the 1961-1990 period. NDVI data for the July 1981 to July 2000 period was obtained from Advanced Very High Resolution Radiometer (AVHRR) sensor on board the NOAA satellite. A relatively high correlation coefficient between ET and NDVI (r=0.81) was found, showing a near linear relationship involving these variables. Also, the monthly mean ET over Brazil was estimated using NDVI data. The results showed that the ET rate in the Amazon region is not well defined because the maximum values occur after the rainy season, while for the Northeast Brazil, the highest ET values occur in according to period of rainy season. The annual cycle of ET is most defined in the Central region, with maximum values occurring in January to May period and minimum in September. In the South and Southeast regions, the annual cycle ET does not change very much. Finally, this study suggests that NDVI is an important variable for indirectly monitoring ET over large areas, thus with great potential for agronomical and climatic applications. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > Evapotranspiration estimation in... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/6qtX3pFwXQZQjxQKY/HucDL |
| zipped data URL | http://urlib.net/zip/6qtX3pFwXQZQjxQKY/HucDL |
| Language | English |
| Target File | v1.pdf |
| User Group | administrator fabia |
| Visibility | shown |
| Update Permission | transferred to ePrint update |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/46JKC45 |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.57 1 |
| Host Collection | sid.inpe.br/mtc-m18@80/2008/03.17.15.17 |
| 6. Notes | |
| Notes | International Symposium Remote Sensing, 12 th |
| Empty Fields | accessyear alternatepublication archivingpolicy archivist contenttype copyholder copyright creatorhistory descriptionlevel dissemination doi edition electronicmailaddress format isbn issn label lineage mark mirrorrepository nextedition orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission rightsholder schedulinginformation secondarykey secondarymark secondarytype session shorttitle sponsor stageofalternatepublication subject tertiarymark tertiarytype url versiontype year |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |