Neogene–Quaternary sedimentary and paleovegetation history of the eastern Solimões Basin, central Amazon region

2013 ◽  
Vol 46 ◽  
pp. 89-99 ◽  
Author(s):  
Afonso César Rodrigues Nogueira ◽  
Rosemery Silveira ◽  
José Tasso Felix Guimarães
2016 ◽  
Vol 8 (7) ◽  
pp. 544 ◽  
Author(s):  
Rômulo Oliveira ◽  
Viviana Maggioni ◽  
Daniel Vila ◽  
Carlos Morales

Author(s):  
Isabela Constantino ◽  
Grazielly Teodoro ◽  
Altair Moreira ◽  
Fabiana Paschoal ◽  
Wanderson Trindade ◽  
...  
Keyword(s):  

2012 ◽  
Vol 18 ◽  
pp. 118-125 ◽  
Author(s):  
S.R.M. Couceiro ◽  
N. Hamada ◽  
B.R. Forsberg ◽  
T.P. Pimentel ◽  
S.L.B. Luz

2020 ◽  
Vol 3 (2) ◽  
pp. 42-53
Author(s):  
Sulianne Idalior Paião Rosado ◽  
◽  
José Zilton Lopes Santos ◽  
Aldilane Mendonça da Silva ◽  
Carlos Alberto Franco Tucci ◽  
...  

2020 ◽  
Author(s):  
Guilherme F. Camarinha-Neto ◽  
Julia C. P. Cohen ◽  
Cléo Q. Dias-Júnior ◽  
Matthias Sörgel ◽  
José Henrique Cattanio ◽  
...  

Abstract. In the period between July 9th and 11th, 2014 a Friagem event reached the central Amazon region causing significant changes in microclimate and atmospheric chemistry. On July 11th, the southwest flow related to the Friagem converged with the easterly winds in the central Amazon region. The interaction between these two distinct air masses formed a convection band, which intensified over the Manaus region and the Amazon Tall Tower Observatory (ATTO) site. The satellite images show the evolution of convective activity on July 11th, which lead to 21 mm of precipitation in the ATTO site. Moreover, the arrival of the Friagem caused a sudden drop in temperature and a predominance of southerly winds, which could be seen in Porto Velho between July 7th and 8th and in Manaus and ATTO site from July 9th to 11th. The results of ERA reanalysis and Brazilian developments on the Regional Atmospheric Modeling System (BRAMS) simulations show that this Friagem event coming from the southwest, carries a mass of air with higher O3 and NO2 mixing ratios and lower CO mixing ratio compared to the air masses present at the central Amazon. At lake Balbina the Friagem intensifies the local circulations, such as the breeze phenomena. At the Manaus region and ATTO site, the main effects of the Friagem event are: a decrease in the incoming solar radiation (due to intense cloud formation), a large temperature drop and a distinct change in surface O3 and CO2 mixing ratios. As the cold air of the Friagem was just in the lower 500 m the most probable cause of this change is that a cold pool above the forest prevented vertical mixing causing accumulation of CO2 from respiration and very low O3 mixing ratio due to photochemistry reduction and limited mixing within the boundary layer.


2016 ◽  
Vol 10 (1) ◽  
pp. 177
Author(s):  
Márcio Silveira Nascimento ◽  
Jaqueline Do Espírito Santo Soares Dos Santos

Resumo Este artigo objetiva a análise do espaço amazônico por meio das representações geográficas contidas na obra Amazônia: Natureza, Homem e Tempo, a qual apresenta a história da região em dois tempos: o primeiro num período de expedições em nossos rios, descrito nas obras de cronistas europeus nos séculos XVI e XVII. E num segundo tempo onde ressalta a economia regional baseada nos produtos da floresta. Elucida-se como se deu a descoberta do principal vetor de riqueza daquela época, a borracha, seu uso pelos indígenas e sua consagração na economia mundial. No entanto, a borracha teve seu declínio e levou consigo toda a riqueza, deixando apenas a paisagem bucólica. Também, destacamos a ocupação populacional, mostrando personagens fundamentais na formação social amazônica. Descreve-se ainda um terceiro tempo amazônico que mostra uma nova perspectiva para a região, enaltecendo a relação homem e natureza pautada no viés ecológico que ganhou força com os movimentos sociais e ambientalistas, uma nova visão acerca do espaço da floresta, divergindo das ambições ou da lógica da economia mundial.Palavras-chave: espaço amazônico, representações geográficas, formação social, borracha. AbstractThis article aims to analyze the Amazon region through geographic representations contained in the Amazon work: Nature, Man and Time, which presents the history of the area in two stages: the first a period of expeditions in our rivers, described in the works of chroniclers Europeans in the sixteenth and seventeenth centuries. And a second time it emphasizes the regional economy based on forest products. it elucidates how was the discovery of the main vector of wealth that time, rubber, its use by indigenous people and their consecration in the world economy. However, the rubber had its decline and took all the wealth, leaving only the bucolic landscape. Also, we highlight the population occupation, showing key characters in the Amazon social formation. also describes a third Amazonian time showing a new perspective for the region, highlighting the relationship between man and nature guided the ecological bias that gained momentum with social movements and environmentalists, a new vision of the forest space, diverging ambitions or the logic of the world economy.Keywords: amazon region, geographic representations, social formation, rubber. ResumenEste artículo objetiva el análisis del espacio amazónico por medio de representaciones geográficas contenidas en la obra de Amazonia: La  Naturaleza, El Hombre y El Tiempo, a cual presenta la historia de la región en dos etapas: la primera en un período de expediciones en nuestros ríos, que se describen en las obras de cronistas europeos en los siglos XVI y XVII. Y la segunda etapa donde rebota la economía regional basada en los productos forestales. Aclara como se dio la descubierta del principal vector de la riqueza en aquella época, el caucho, y su uso por los indígenas y su consagración en la economía mundial. Sin embargo, el caucho tuvo su declive y se llevó toda la riqueza, dejando sólo el paisaje bucólico. También, destacamos la población ocupacional, que muestra personajes clave en la formación social del Amazonas. Aún se describe una tercera etapa amazónica que muestra una nueva perspectiva para la región, destacando la relación entre el hombre y la naturaleza enumerada en el oblicuo ecológico que ganó fuerza con los movimientos sociales y ambientalistas, una nueva visión acerca del espacio forestal, divergiendo de las ambiciones o de la lógica de la economía mundial.Palabras clave: región amazónica, representaciones geográficas, la formación social, caucho.


Zootaxa ◽  
2017 ◽  
Vol 4347 (1) ◽  
pp. 187
Author(s):  
ANA C. R. NEVES ◽  
MARIA C. MENDONÇA

A new species of the cosmopolitan genus Xenylla Tullberg, 1869 is herein described and illustrated. The new species, Xenylla hodori sp. nov., from the Amazon Forest of Northern Brazil, resembles X. capixaba Fernandes & Mendonça, 2010 and X. welchi Folsom, 1916 due, the number of eyes, chaetotaxy head and shape of furca. X. hodori sp. nov. is the second species recorded for the Brazilian Amazon Region. 


2020 ◽  
Vol 12 (9) ◽  
Author(s):  
Cinthya Martins Jardim ◽  
Gabriela Bielefeld Nardoto ◽  
Ana Carolina Barbosa de Lima ◽  
Rodrigo de Jesus Silva ◽  
Tatiana Schor ◽  
...  

2018 ◽  
Vol 10 (2) ◽  
pp. 336 ◽  
Author(s):  
Rômulo Oliveira ◽  
Viviana Maggioni ◽  
Daniel Vila ◽  
Leonardo Porcacchia

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