| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | x6e6X3pFwXQZ3DUS8rS5/BDksu |
| Repository | cptec.inpe.br/walmeida/2004/04.02.16.24 |
| Last Update | 2007:11.19.10.03.53 (UTC) administrator |
| Metadata Repository | cptec.inpe.br/walmeida/2004/04.02.16.24.22 |
| Metadata Last Update | 2021:02.10.18.35.23 (UTC) administrator |
| Secondary Key | INPE-10724-PRE/6185 |
| ISSN | 0894-8755 |
| Citation Key | NobreSellShuk:1991:AmDeRe |
| Title | Amazonian deforestation and regional climate change  |
| Year | 1991 |
| Month | Oct. |
| Access Date | 2024, May 18 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 2409 KiB |
| 2. Context | |
| Author | 1 Nobre, Carlos Afonso 2 Sellers, Piers J. 3 Shukla, Jagadish |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JGQ7 |
| Group | 1 CPT-INPE-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais,(INPE/CPTEC) 2 Center of Ocean-Land-Atmosphere Interactions-COLA, University of Maryland 3 Center of Ocean-Land-Atmosphere Interactions-COLA, University of Maryland |
| e-Mail Address | deicy@cptec.inpe.br |
| Journal | Journal of Climate |
| Volume | 4 |
| Number | 10 |
| Pages | 957-988 |
| History (UTC) | 2006-03-13 18:35:33 :: Deicy -> administrator :: 2007-03-30 12:03:55 :: administrator -> Deicy :: 2007-11-19 10:03:53 :: Deicy -> administrator :: 2012-11-22 09:56:22 :: administrator -> Deicy :: 1991 2013-02-20 14:52:32 :: Deicy -> administrator :: 1991 2021-02-10 18:35:23 :: administrator -> marciana :: 1991 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | Amazonian deforestation climate |
| Abstract | Large-scale conversion of tropical forests into pastures or annual crops could lead to changes in the climate. We have used a coupled numerical model of the global atmosphere and biosphere (Center for Ocean-Land-Atmosphere GCM) to assess the effects of Amazonian deforestation on the regional and global climate. We found that when the Amazonian tropical forests were replaced by degraded grass (pasture) in the model, there was a significant increase in the mean surface temperature (about 2.5-degrees-C) and a decrease in the annual evapotranspiration (30% reduction), precipitation (25% reduction), and runoff (20% reduction) in the region. The differences between the two simulations were greatest during the dry season. The deforested case was associated with larger diurnal fluctuations of surface temperature and vapor pressure deficit; such effects have been observed in existing deforested areas in Amazonia. The calculated reduction in precipitation was larger than the calculated decrease in evapotranspiration, indicating a reduction in the regional moisture convergence. There was also an increase in the length of the dry season in the southern half of the Amazon Basin, which could have serious implications for the reestablishment of the tropical forests following massive deforestation since rainforests only occur where the dry season is very short or nonexistent. An empirical bioclimatic scheme based on an integrated soil moisture stress index was used to derive the movement of the savanna-forest boundary in response to the simulated climate change produced by large-scale deforestation. The implications of possible climate changes in adjacent regions are discussed. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CGCPT > Amazonian deforestation and... |
| 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://mtc-m16b.sid.inpe.br/ibi/x6e6X3pFwXQZ3DUS8rS5/BDksu |
| zipped data URL | http://mtc-m16b.sid.inpe.br/zip/x6e6X3pFwXQZ3DUS8rS5/BDksu |
| Language | en |
| Target File | amazonian_deforestation.pdf |
| User Group | Deicy administrator |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher6 allowfinaldraft |
| Read Permission | allow from all |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3EUPEJL |
| Citing Item List | sid.inpe.br/bibdigital/2013/10.06.18.03 1 |
| Dissemination | WEBSCI; PORTALCAPES; AGU; MGA; COMPENDEX. |
| Host Collection | cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |