Atmosphere-Land Bridge between the Pacific and Tropical North Atlantic SST’s through the Amazon River basin during the 2005 and 2010 droughts

2018 ◽  
Vol 28 (8) ◽  
pp. 085705 ◽  
Author(s):  
Alejandro Builes-Jaramillo ◽  
Antônio M. T. Ramos ◽  
Germán Poveda
Keyword(s):  
River Basin ◽  
North Atlantic ◽  
Amazon River ◽  
Amazon River Basin ◽  
Land Bridge ◽  
The Pacific ◽  
Tropical North Atlantic

Nonlinear interactions between the Amazon River basin and the Tropical North Atlantic at interannual timescales

2017 ◽  
Vol 50 (7-8) ◽  
pp. 2951-2969 ◽  
Author(s):  
Alejandro Builes-Jaramillo ◽  
Norbert Marwan ◽  
Germán Poveda ◽  
Jürgen Kurths
Keyword(s):  
River Basin ◽  
North Atlantic ◽  
Amazon River ◽  
Nonlinear Interactions ◽  
Amazon River Basin ◽  
Tropical North Atlantic

scholarly journals Inter-annual variability of rainfalls in the Amazon basin and its vicinity

MAUSAM ◽  
2021 ◽  
Vol 58 (3) ◽  
pp. 351-360
Author(s):  
R. P. KANE
Keyword(s):  
River Basin ◽  
North Atlantic ◽  
North Atlantic Oscillation Index ◽  
Amazon Basin ◽  
Eastern Coast ◽  
Amazon River ◽  
Gridded Data ◽  
Amazon River Basin ◽  
Moderate Relationship ◽  
Enso Indices

An analysis of the rainfall series (12-month running means) of the 5° × 5° gridded data in the Amazon river basin and its vicinity (15° N – 20° S, 30° - 80° W) indicated that the rainfalls were highly variable both from year to year and from region to region. Correlations with even nearby regions hardly exceeded 0.50, though correlations were better (up to 0.70) in the regions near the eastern coast of Brazil. Moderate relationship with ENSO indices was obtained for the Amazon river basin and the regions to its north, and for NE Brazil, while moderate relationship with South Atlantic SST was obtained for NE Brazil and the region immediately to its west. All other relationships (with 30 hPa wind, North Atlantic Oscillation Index, etc.) were obscure.

Species of Ancistrus (Siluriformes, Loricariidae) from Ecuador, with the description of a new species from the Amazon River Basin

Zootaxa ◽  
2018 ◽  
Vol 4527 (2) ◽  
pp. 211
Author(s):  
FRANCISCO PROVENZANO R. ◽  
RAMIRO BARRIGA-SALAZAR
Keyword(s):  
New Species ◽  
River Basin ◽  
The Other ◽  
Amazon River ◽  
Amazon River Basin ◽  
Freshwater Systems ◽  
The Pacific ◽  
Coloration Pattern ◽  
Fish Collection ◽  
A New Species

To elucidate the species of the genus Ancistrus that inhabit freshwater systems of Ecuador, cataloged lots of the Fish Collection, Museo de la Escuela Politécnica Nacional (MEPN), in Quito, were analyzed. Four species were identified: Ancistrus alga (Cope, 1872), A. malacops (Cope, 1872), A. clementinae Rendahl, 1937, and a new species that herein is described. Ancistrus clementinae inhabits aquatic systems of the Pacific slope, mostly in the Guayas River drainage. The other three species live in freshwater systems that drain to the Amazon River Basin. Ancistrus alga inhabit the northern and central portions of eastern Ecuador. Ancistrus malacops has a broad distribution from north to south, but is absent from the Santiago River. Both species occasionally live in sympatry. The new species is restricted to the Santiago River, in Morona-Santiago province. Each species has unique external morphological features and/or a coloration pattern that allow unambiguous identification, at least of males. This paper provides a description of the new species, and a re-description and images of the other three. 

scholarly journals Genome assembly and annotation of the tambaqui (Colossoma macropomum): an emblematic fish of the Amazon River Basin

Gigabyte ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Alexandre Wagner Silva Hilsdorf ◽  
Marcela Uliano-Silva ◽  
Luiz Lehmann Coutinho ◽  
Horácio Montenegro ◽  
Vera Maria Fonseca Almeida-Val ◽  
...  
Keyword(s):  
River Basin ◽  
Genome Assembly ◽  
Amazon River ◽  
Amazon River Basin ◽  
Colossoma Macropomum

In-stream turbines for sustainable hydropower development in the Amazon river basin

2021 ◽  
Author(s):  
Suyog Chaudhari ◽  
Erik Brown ◽  
Raul Quispe-Abad ◽  
Emilio Moran ◽  
Norbert Mueller ◽  
...  
Keyword(s):  
River Basin ◽  
Large Scale ◽  
Ecological Impacts ◽  
Amazon River ◽  
River Ecology ◽  
Amazon River Basin ◽  
Hydropower Development ◽  
Continental Scale ◽  
Large Dams ◽  
Hydropower Potential

<p>Given the ongoing and planned hydropower development projects in the Amazon River basin, appalling losses in biodiversity, river ecology and river connectivity are inevitable. These hydropower projects are proposed to be built in exceptionally endemic sites, setting records in environmental losses by impeding fish movement, altering flood pulse, causing large-scale deforestation, and increasing greenhouse gas emissions. With the burgeoning energy demand combined with the aforementioned negative impacts of conventional hydropower technology, there is an imminent need to re-think the design of hydropower to avoid the potentially catastrophic consequences of large dams. It is certain that the Amazon will undergo some major hydrological changes in the near future because of the compounded effects of climate change and proposed dams, if built with the conventional hydropower technology. In this study, we present a transformative hydropower outlook that integrates low-head hydropower technology (e.g., in-stream turbines) and multiple environmental aspects, such as river ecology and protected areas. We employ a high resolution (~2km) continental scale hydrological model called LEAF-Hydro-Flood (LHF) to assess the in-stream hydropower potential in the Amazon River basin. We particularly focus on quantifying the potential and feasibility of employing instream turbines in the Amazon instead of building large dams. We show that a significant portion of the total energy planned to be generated from conventional hydropower in the Brazilian Amazon could be harnessed using in-stream turbines that utilize kinetic energy of water without requiring storage. Further, we also find that implementing in-stream turbines as an alternative to large storage-based dams could prove economically feasible, since most of the environmental and social costs associated with dams are eliminated. Our results open multiple pathways to achieve sustainable hydropower development in the Amazon to meet the ever-increasing energy demands while minimizing hydrological, social, and ecological impacts. It also provides important insight for sustainable hydropower development in other global regions. The results presented are based on a manuscript under revision for Nature Sustainability.</p>

scholarly journals Amazon River influence on nitrogen fixation and export production in the western tropical North Atlantic

2016 ◽  
Vol 62 (2) ◽  
pp. 618-631 ◽  
Author(s):  
Sarah C. Weber ◽  
Edward J. Carpenter ◽  
Victoria J. Coles ◽  
Patricia L. Yager ◽  
Joaquim Goes ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
North Atlantic ◽  
Amazon River ◽  
Export Production ◽  
Tropical North Atlantic
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