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Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations

Ping Yang, Jiafang Huang, Hong Yang, Josep Peñuelas, Kam Tang Orcid Logo, Derrick Y.F. Lai, Dongqi Wang, Qitao Xiao, Jordi Sardans, Yifei Zhang, Chuan Tong

Atmospheric Environment, Volume: 253, Start page: 118384

Swansea University Author: Kam Tang Orcid Logo

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DOI (Published version): 10.1016/j.atmosenv.2021.118384

Abstract

Static floating chambers (FCs) and thin boundary layer (TBL) modelling were compared for estimating CH4 fluxes across the water-air interface in aquaculture ponds in southeastern China. The surface water CH4 concentrations ranged from 0.4 to 9.1 μmol L-1 and averaged 4.8 ± 0.8 μmol L-1. The ponds we...

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Published in: Atmospheric Environment
ISSN: 1352-2310
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56626
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spelling 2021-04-26T11:16:19.9831343 v2 56626 2021-04-06 Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations 69af43a3b9da24aef65c5d3a44956fe3 0000-0001-9427-9564 Kam Tang Kam Tang true false 2021-04-06 SBI Static floating chambers (FCs) and thin boundary layer (TBL) modelling were compared for estimating CH4 fluxes across the water-air interface in aquaculture ponds in southeastern China. The surface water CH4 concentrations ranged from 0.4 to 9.1 μmol L-1 and averaged 4.8 ± 0.8 μmol L-1. The ponds were a persistent source of CH4 to the atmosphere. Mean CH4 flux based on different TBL models was highly variable and ranging between 19 and316 μmol m-2 h-1. Compared against FCs, three TBL models developed for the open sea, flowing estuarine system and lentic ecosystem overestimated CH4 emission by 40–200%, while the wind tunnel-based TBL model underestimated CH4 emission. Two TBL models developed for lakes gave estimates similar to FCs. Journal Article Atmospheric Environment 253 118384 Elsevier BV 1352-2310 Methane fluxes; Thin boundary layer models; Floating chambers; Water-air interface; Shallow aquaculture pond; Subtropical estuary 15 5 2021 2021-05-15 10.1016/j.atmosenv.2021.118384 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2021-04-26T11:16:19.9831343 2021-04-06T10:31:47.3940692 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Ping Yang 1 Jiafang Huang 2 Hong Yang 3 Josep Peñuelas 4 Kam Tang 0000-0001-9427-9564 5 Derrick Y.F. Lai 6 Dongqi Wang 7 Qitao Xiao 8 Jordi Sardans 9 Yifei Zhang 10 Chuan Tong 11 56626__19753__1b2fdd65d7e34cebb19c64f56ec6eddb.pdf 56626.pdf 2021-04-26T11:14:19.3356982 Output 1772828 application/pdf Accepted Manuscript true 2022-04-02T00:00:00.0000000 ©2021 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
spellingShingle Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
Kam Tang
title_short Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
title_full Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
title_fullStr Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
title_full_unstemmed Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
title_sort Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
author_id_str_mv 69af43a3b9da24aef65c5d3a44956fe3
author_id_fullname_str_mv 69af43a3b9da24aef65c5d3a44956fe3_***_Kam Tang
author Kam Tang
author2 Ping Yang
Jiafang Huang
Hong Yang
Josep Peñuelas
Kam Tang
Derrick Y.F. Lai
Dongqi Wang
Qitao Xiao
Jordi Sardans
Yifei Zhang
Chuan Tong
format Journal article
container_title Atmospheric Environment
container_volume 253
container_start_page 118384
publishDate 2021
institution Swansea University
issn 1352-2310
doi_str_mv 10.1016/j.atmosenv.2021.118384
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
document_store_str 1
active_str 0
description Static floating chambers (FCs) and thin boundary layer (TBL) modelling were compared for estimating CH4 fluxes across the water-air interface in aquaculture ponds in southeastern China. The surface water CH4 concentrations ranged from 0.4 to 9.1 μmol L-1 and averaged 4.8 ± 0.8 μmol L-1. The ponds were a persistent source of CH4 to the atmosphere. Mean CH4 flux based on different TBL models was highly variable and ranging between 19 and316 μmol m-2 h-1. Compared against FCs, three TBL models developed for the open sea, flowing estuarine system and lentic ecosystem overestimated CH4 emission by 40–200%, while the wind tunnel-based TBL model underestimated CH4 emission. Two TBL models developed for lakes gave estimates similar to FCs.
published_date 2021-05-15T04:11:43Z
_version_ 1763753803866177536
score 11.012924

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