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José Marengo   Dr.  Other 
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José Marengo published an article in December 2018.
Top co-authors See all
Ricardo Trigo

202 shared publications

Instituto Geofísico do Infante D. Luiz (IGIDL), Universidade de Lisboa, Ed C8, Piso 6, 1749-016, Rua da Escola Politécnica nº 58, 1250-102 Lisboa, Lisbon, PORTUGAL

Luis Gimeno

134 shared publications

Environmental Physics Laboratory (EPhysLab), Facultade de Ciencias, Universidad de Vigo, Ourense 32004, Spain

Raquel Nieto

120 shared publications

Environmental Physics Laboratory (EPhysLab), Facultade de Ciencias, Universidad de Vigo, Ourense 32004, Spain

Alexandre M. Ramos

58 shared publications

Instituto Dom Luiz (IDL)

Anita Drumond

57 shared publications

Environmental Physics Laboratory (UVIGO-CSIC Associated Unit), Universidade de Vigo, Ourense 32004, Spain

Publication Record
Distribution of Articles published per year 
(2004 - 2018)
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Article 0 Reads 0 Citations Changes in Climate and Land Use Over the Amazon Region: Current and Future Variability and Trends Jose A. Marengo, Carlos M. Souza, Kirsten Thonicke, Chantell... Published: 21 December 2018
Frontiers in Earth Science, doi: 10.3389/feart.2018.00228
DOI See at publisher website ABS Show/hide abstract
This paper shows recent progress in our understanding of climate variability and trends in the Amazon region, and how these interact with land use change. The review includes an overview of up-to-date information on climate and hydrological variability, and on warming trends in Amazonia, which reached 0.6–0.7°C over the last 40 years, with 2016 as the warmest year since at least 1950 (0.9°C + 0.3°C). We focus on local and remote drivers of climate variability and change. We review the impacts of these drivers on the length of dry season, the role of the forest in climate and carbon cycles, the resilience of the forest, the risk of fires and biomass burning, and the potential “die back” of the Amazon forests if surpassing a “tipping point”. The role of the Amazon in moisture recycling and transport is also investigated, and a review of model development for climate change projections in the region is included. In sum, future sustainability of the Amazonian forests and its many services requires management strategies that consider the likelihood of multi-year droughts superimposed on a continued warming trend. Science has assembled enough knowledge to underline the global and regional importance of an intact Amazon region that can support policymaking and to keep this sensitive ecosystem functioning. This major challenge requires substantial resources and strategic cross-national planning, and a unique blend of expertise and capacities established in Amazon countries and from international collaboration. This also highlights the role of deforestation control in support of policy for mitigation options as established in the Paris Agreement of 2015.
BOOK-CHAPTER 3 Reads 0 Citations The METROPOLE Project – An Integrated Framework to Analyse Local Decision Making and Adaptive Capacity to Large-Scale En... José A. Marengo, Frank Muller-Karger, Mark Pelling, Catherin... Published: 24 November 2018
Climate Change in Santos Brazil: Projections, Impacts and Adaptation Options, doi: 10.1007/978-3-319-96535-2_1
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Article 0 Reads 0 Citations Tools for Communicating Agricultural Drought over the Brazilian Semiarid Using the Soil Moisture Index Marcelo Zeri, Regina S. Alvalá, Rogério Carneiro, Gisleine C... Published: 11 October 2018
Water, doi: 10.3390/w10101421
DOI See at publisher website ABS Show/hide abstract
Soil moisture over the Brazilian semiarid region is presented in different visualizations that highlight spatial, temporal and short-term agricultural risk. The analysis used the Soil Moisture Index (SMI), which is based on a normalization of soil moisture by field capacity and wilting point. The index was used to characterize the actual soil moisture conditions into categories from severe drought to very wet. In addition, the temporal evolution of SMI was implemented to visualize recent trends in short-term drought and response to rainfall events at daily time steps, as new data are available. Finally, a visualization of drought risk was developed by considering a critical value of SMI (assumed as 0.4), below which water stress is expected to be triggered in plants. A novel index based on continuous exposure to critical SMI was developed to help bring awareness of real time risk of water stress over the region: the Index of Stress in Agriculture (ISA). The index was tested during a drought over the region and successfully identified locations under water stress for periods of three days or more. The monitoring tools presented here help to describe the real time conditions of drought over the region using daily observations. The information from those tools support decisions on agricultural management such as planting dates, triggering of irrigation, or harvesting.
BOOK-CHAPTER 0 Reads 0 Citations Final Remarks and Recommendations Jose A. Marengo, Carlos A. Nobre, Wagner R. Soares, Ana P. S... Published: 26 September 2018
Climate Change Risks in Brazil, doi: 10.1007/978-3-319-92881-4_9
DOI See at publisher website
BOOK-CHAPTER 0 Reads 0 Citations Increase Risk of Drought in the Semiarid Lands of Northeast Brazil Due to Regional Warming above 4 °C Jose A. Marengo, Ana Paula Cunha, Wagner R. Soares, Roger R.... Published: 26 September 2018
Climate Change Risks in Brazil, doi: 10.1007/978-3-319-92881-4_7
DOI See at publisher website
Article 2 Reads 5 Citations The Atmospheric Branch of the Hydrological Cycle over the Negro and Madeira River Basins in the Amazon Region Rogert Sorí, José A. Marengo, Raquel Nieto, Anita Drumond, L... Published: 05 June 2018
Water, doi: 10.3390/w10060738
DOI See at publisher website ABS Show/hide abstract
The Amazon region, in South America, contains the largest rainforest and biodiversity in the world, and plays an important role in the regional and global hydrological cycle. In the present study, we identified the main sources of moisture of two subbasins of the Amazon River Basin, the Negro and Madeira River Basins respectively. The source-sink relationships of atmospheric moisture are investigated. The analysis is performed for the period from 1980–2016. The results confirm two main oceanic moisture sources for both basins, i.e., oceanic regions in the Tropical North and South Atlantic oceans. On the continents are, the Negro River Basin itself, and nearby regions to the northeast. For the Madeira River Basin, the most important continental sources are itself, and surrounding regions of the South American continent. Forward-trajectory analysis of air masses over the source regions is used to compute the moisture contribution to precipitation over basins. Oceanic (continental) sources play the most important role in the Negro River Basin (Madeira River Basin). The moisture contribution from the Tropical North Atlantic region modulates the onset and demise of the rainy season in the Negro River Basin; while the moisture contribution from the rest of the Amazon River Basin, the Madeira Basin itself, and Tropical South America leads to the onset of the rainy season in the Madeira River Basin. These regions also played the most important role in decreasing the moisture supply during most severe dry episodes in both basins. During ‘’El Niño’’, generally occurs a reduction (increase) of the moisture contribution to the Negro River Basin (Madeira River Basin; mainly from April to August) from almost all the sources, causing a decrease in the precipitation. Generally, the contrary occurs during ‘’La Niña’’.