The Amazon basin as a moisture source for an Atlantic Walker-type Circulation

The Amazon basin constitutes the most developed rainforest in the world, accounting for 15-20% of the global freshwater input into the oceans. The low level flow over this region is climatologically dominated by the Atlantic anticycslone and the trade winds. This yields an incoming oceanic moist air...

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Autores principales: Hierro, R., Llamedo, P., de la Torre, A., Alexander, P.
Formato: JOUR
Materias:
Earth atmosphere
Meteorology
Andes ranges
Austral summers
Freshwater inputs
Global patterns
Heat sources
Moisture sources
Radio occultations
Tropical atmospheres
Water vapor
atmospheric moisture
GPS
heat source
humidity
Walker circulation
water vapor
Amazon Basin
Atlantic Ocean
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01698095_v216_n_p160_Hierro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01698095_v216_n_p160_Hierro
record_format dspace
spelling todo:paper_01698095_v216_n_p160_Hierro2023-10-03T15:07:22Z The Amazon basin as a moisture source for an Atlantic Walker-type Circulation Hierro, R. Llamedo, P. de la Torre, A. Alexander, P. Earth atmosphere Meteorology Andes ranges Austral summers Freshwater inputs Global patterns Heat sources Moisture sources Radio occultations Tropical atmospheres Water vapor atmospheric moisture GPS heat source humidity Walker circulation water vapor Amazon Basin Atlantic Ocean The Amazon basin constitutes the most developed rainforest in the world, accounting for 15-20% of the global freshwater input into the oceans. The low level flow over this region is climatologically dominated by the Atlantic anticycslone and the trade winds. This yields an incoming oceanic moist air to the continent from the East, which is forced to lift up over the Andes range at the West. The confluence of the entrance of humidity, heat, evaporation and strong rainfall results in an accumulation of water vapor in this region. There is a statistically significant surplus of humidity over land as compared to over ocean (the largest difference is found during austral summer). This turns the Amazon basin into one of the most important heat sources for the tropical atmosphere, feeding a global pattern like the Atlantic Walker-type circulation, where the ascent stage is not over ocean but over land. The Global Positioning System radio occultation data show to be an excellent tool to observe the accumulated water vapor above the Amazon basin. © 2018 Elsevier B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01698095_v216_n_p160_Hierro
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Earth atmosphere
Meteorology
Andes ranges
Austral summers
Freshwater inputs
Global patterns
Heat sources
Moisture sources
Radio occultations
Tropical atmospheres
Water vapor
atmospheric moisture
GPS
heat source
humidity
Walker circulation
water vapor
Amazon Basin
Atlantic Ocean
spellingShingle Earth atmosphere
Meteorology
Andes ranges
Austral summers
Freshwater inputs
Global patterns
Heat sources
Moisture sources
Radio occultations
Tropical atmospheres
Water vapor
atmospheric moisture
GPS
heat source
humidity
Walker circulation
water vapor
Amazon Basin
Atlantic Ocean
Hierro, R.
Llamedo, P.
de la Torre, A.
Alexander, P.
The Amazon basin as a moisture source for an Atlantic Walker-type Circulation
topic_facet Earth atmosphere
Meteorology
Andes ranges
Austral summers
Freshwater inputs
Global patterns
Heat sources
Moisture sources
Radio occultations
Tropical atmospheres
Water vapor
atmospheric moisture
GPS
heat source
humidity
Walker circulation
water vapor
Amazon Basin
Atlantic Ocean
description The Amazon basin constitutes the most developed rainforest in the world, accounting for 15-20% of the global freshwater input into the oceans. The low level flow over this region is climatologically dominated by the Atlantic anticycslone and the trade winds. This yields an incoming oceanic moist air to the continent from the East, which is forced to lift up over the Andes range at the West. The confluence of the entrance of humidity, heat, evaporation and strong rainfall results in an accumulation of water vapor in this region. There is a statistically significant surplus of humidity over land as compared to over ocean (the largest difference is found during austral summer). This turns the Amazon basin into one of the most important heat sources for the tropical atmosphere, feeding a global pattern like the Atlantic Walker-type circulation, where the ascent stage is not over ocean but over land. The Global Positioning System radio occultation data show to be an excellent tool to observe the accumulated water vapor above the Amazon basin. © 2018 Elsevier B.V.
format JOUR
author Hierro, R.
Llamedo, P.
de la Torre, A.
Alexander, P.
author_facet Hierro, R.
Llamedo, P.
de la Torre, A.
Alexander, P.
author_sort Hierro, R.
title The Amazon basin as a moisture source for an Atlantic Walker-type Circulation
title_short The Amazon basin as a moisture source for an Atlantic Walker-type Circulation
title_full The Amazon basin as a moisture source for an Atlantic Walker-type Circulation
title_fullStr The Amazon basin as a moisture source for an Atlantic Walker-type Circulation
title_full_unstemmed The Amazon basin as a moisture source for an Atlantic Walker-type Circulation
title_sort amazon basin as a moisture source for an atlantic walker-type circulation
url http://hdl.handle.net/20.500.12110/paper_01698095_v216_n_p160_Hierro
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