Condensation and partial pressure change as a major cause of airflow: Experimental evidence

The dominant model of atmospheric circulation is based on the notion that hot air rises, creating horizontal winds. A second major driver has been proposed [1] in the biotic pump theory (BPT), by which intense condensation is the prime cause of surface winds from ocean to land. Critics of the BPT ar...

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Main Authors: Peter Paul Bunyard, Martin Hodnett, Carlos Peña, Javier Burgos Salcedo
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2017-07-01
Series:Dyna
Subjects:
Online Access:https://revistas.unal.edu.co/index.php/dyna/article/view/61253
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spelling doaj-111ac33086c0457aaaef6b4604b9e1602020-11-24T21:14:36ZengUniversidad Nacional de Colombia Dyna0012-73532346-21832017-07-01842029210110.15446/dyna.v84n202.6125346678Condensation and partial pressure change as a major cause of airflow: Experimental evidencePeter Paul Bunyard0Martin Hodnett1Carlos Peña2Javier Burgos Salcedo3Retired IDEASA, Universidad Sergio Arboleda, Bogotá, ColombiaCentre for Ecology & Hydrology, Wallingford, UK, (retired, UK).Facultad de Matemática, Universidad Sergio Arboleda, Bogotá, ColombiaCorporación para la Investigación y la Innovación – CIINAS, Bogotá, ColombiaThe dominant model of atmospheric circulation is based on the notion that hot air rises, creating horizontal winds. A second major driver has been proposed [1] in the biotic pump theory (BPT), by which intense condensation is the prime cause of surface winds from ocean to land. Critics of the BPT argue that air movement resulting from condensation is isotropic [2]. This paper explores the physics of water condensation under mild atmospheric conditions, within a purpose-designed square-section 4.8m-tall closed-system structure. The data show a highly significant correlation (R2 >0.96, p value <0.001) between observed airflows and partial pressure changes from condensation. The assumption that condensation of water vapour is always isotropic is therefore incorrect. This does not prove that condensation and cloud-formation cause atmospheric surface winds, but the implications are that the correlation found in the experiments needs to be considered for the atmosphere at large.https://revistas.unal.edu.co/index.php/dyna/article/view/61253Airflowcondensationconvectionanisotropic
collection DOAJ
language English
format Article
sources DOAJ
author Peter Paul Bunyard
Martin Hodnett
Carlos Peña
Javier Burgos Salcedo
spellingShingle Peter Paul Bunyard
Martin Hodnett
Carlos Peña
Javier Burgos Salcedo
Condensation and partial pressure change as a major cause of airflow: Experimental evidence
Dyna
Airflow
condensation
convection
anisotropic
author_facet Peter Paul Bunyard
Martin Hodnett
Carlos Peña
Javier Burgos Salcedo
author_sort Peter Paul Bunyard
title Condensation and partial pressure change as a major cause of airflow: Experimental evidence
title_short Condensation and partial pressure change as a major cause of airflow: Experimental evidence
title_full Condensation and partial pressure change as a major cause of airflow: Experimental evidence
title_fullStr Condensation and partial pressure change as a major cause of airflow: Experimental evidence
title_full_unstemmed Condensation and partial pressure change as a major cause of airflow: Experimental evidence
title_sort condensation and partial pressure change as a major cause of airflow: experimental evidence
publisher Universidad Nacional de Colombia
series Dyna
issn 0012-7353
2346-2183
publishDate 2017-07-01
description The dominant model of atmospheric circulation is based on the notion that hot air rises, creating horizontal winds. A second major driver has been proposed [1] in the biotic pump theory (BPT), by which intense condensation is the prime cause of surface winds from ocean to land. Critics of the BPT argue that air movement resulting from condensation is isotropic [2]. This paper explores the physics of water condensation under mild atmospheric conditions, within a purpose-designed square-section 4.8m-tall closed-system structure. The data show a highly significant correlation (R2 >0.96, p value <0.001) between observed airflows and partial pressure changes from condensation. The assumption that condensation of water vapour is always isotropic is therefore incorrect. This does not prove that condensation and cloud-formation cause atmospheric surface winds, but the implications are that the correlation found in the experiments needs to be considered for the atmosphere at large.
topic Airflow
condensation
convection
anisotropic
url https://revistas.unal.edu.co/index.php/dyna/article/view/61253
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