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Climate diagnostics of three major drought events in the Amazon and illustrations of their seasonal precipitation predictions.
The Amazon has a well-defined wet austral summer monsoon and dry winter monsoon precipitation regime and experienced a sequence of drought events in the last 13 years. This study performs a comparative assessment of observed and predicted climate conditions during the three most recent drought event...- por Portal Padrão
- publicado
- 23/06/2012
- 2:51 PM
Climategate and the virtue of the scientific community: an editorial commentary on the Maibach et al. and Grundmann opinion articles.
The controversy dubbed Climategate erupted in late 2009 exactly as diplomats around the world were preparing their positions for the negotiations at the especially high-profile 15th Conference of the Parties under the United Nations Framework Convention on Climate Change (UNFCCC). This meeting was d...- por Portal Padrão
- publicado
- 26/05/2012
- 1:08 PM
Improving extreme precipitation forecasts in Rio de Janeiro, Brazil: are synoptic patterns efficient for distinguishing ordinary from heavy rainfall episodes?
This work analysed heavy rainfall events and their predictability on Rio de Janeiro, Brazil, using rain gauge data from 2000 to 2010, atmospheric model outputs, and an artificial neural network based on adaptive resonance theory. The latter was applied on top of atmospheric simulations for 2009 and ...- por Portal Padrão
- publicado
- 23/05/2012
- 3:10 PM
Agricultural land use dynamics in the Brazilian Amazon based on remote sensing and census data.
The potential impact of deforestation in the Brazilian Amazon on greenhouse gas emissions to the atmosphere calls for policies that take account of changes in forest cover. Although much research has focused on the location and effects of deforestation, little is known about the distribution and rea...- por Portal Padrão
- publicado
- 23/03/2012
- 3:18 PM
Land use transitions in South America: framing the present, preparing for a sustainable future.
South America has experienced signifi cant land use transitions in the past, especially due to the expansion of large-scale agriculture in countries such as Brazil and Argentina. This expansion has supported economic growth, but has caused serious environmental consequences. Therefore, countries in ...- por Portal Padrão
- publicado
- 23/03/2012
- 3:09 PM
LuccME-TerraME: an open-source framework for spatially explicit land use change modelling.
LuccME is an open-source framework for the development of spatially explicit land use and cover change models, built as an extension of the TerraME programming environment. LuccME simplifi es the creation of deforestation, agricultural expansion, urban sprawl and other land change processes at diffe...- por Portal Padrão
- publicado
- 22/03/2012
- 4:39 PM
Downscaling of South America present climate driven by 4-member HadCM3 runs.
The objective of this work is to evaluate climate simulations over South America using the regional Eta Model driven by four members of an ensemble of the UK Met Office Hadley Centre HadCM3 global model. The Eta Model has been modified with the purpose of performing long-term decadal integrations an...- por Portal Padrão
- publicado
- 23/02/2012
- 2:27 PM
Conversion of the coastal Atlantic forest to pasture: consequences for the nitrogen cycle and soil greenhouse gas emissions.
We evaluated how land use change affected the nitrogen cycle and greenhouse gas fluxes. We measured soil temperature and water-filled pore space (WFPS), as well as nitrate and ammonium concentrations, mineralization and nitrification rates, and flux of CH4, CO2 and N2O in soils of pasture catchment ...- por Portal Padrão
- publicado
- 23/02/2012
- 2:23 PM
La Gestión de Riesgos de Eventos Extremos y Desastres en América Latina y el Caribe: Aprendizajes del Informe Especial (SREX) del IPCC
El Informe Especial sobre la Gestión de Riesgos de Eventos Extremos y Desastres en América Latina y el Caribe (SREX) fue encargado por el Panel Intergubernamental sobre el Cambio Climático (IPCC) en respuesta a la necesidad de proporcionar una asesoría específica sobre el cambio climático y lo...- por Portal Padrão
- publicado
- 26/01/2012
- 3:00 PM
Gerenciando Extremos Climáticos e Desastres na América Latina e no Caribe: Lições do relatório SREX IPCC
O Relatório Especial sobre Gerenciamento de Riscos de Eventos Extremos e Desastres para Promover Adaptação à Mudança do Clima (SREX) foram comissionados pelo Painel Intergovernamental sobre Mudança do Clima (IPCC) em resposta a uma reconhecida necessidade de fornecer conselhos específicos sob...- por Portal Padrão
- publicado
- 26/01/2012
- 2:53 PM
Recent developments on the South American monsoon system.
This paper reviews recent progress made in our understanding of the functioning and variability of the South American Monsoon System (SAMS) on time scales varying from synoptic to long-term variability and climate change. The SAMS contains one of the most prominent summertime climate patterns in Sou...- por Portal Padrão
- publicado
- 26/01/2012
- 1:14 PM
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