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Diffusive CH4 fluxes from aquaculture ponds using floating chambers and thin boundary layer equations
Atmospheric Environment, Volume: 253, Start page: 118384
Swansea University Author: Kam Tang
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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...
Published in: | Atmospheric Environment |
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ISSN: | 1352-2310 |
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Elsevier BV
2021
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URI: | https://cronfa.swan.ac.uk/Record/cronfa56626 |
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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 BGPS 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 Geography and Physics School COLLEGE CODE BGPS 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 |
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Journal article |
container_title |
Atmospheric Environment |
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253 |
container_start_page |
118384 |
publishDate |
2021 |
institution |
Swansea University |
issn |
1352-2310 |
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10.1016/j.atmosenv.2021.118384 |
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Elsevier BV |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences |
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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 |
2021-05-15T08:00:56Z |
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1821391670302736384 |
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11.04748 |