Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site
Eddy covariance (EC) estimates of net ecosystem exchange (NEE) and the surface energy balance were gathered from an elevated peat plateau within the Hudson Bay Lowlands near Churchill, Manitoba, Canada (58°43′46″N, 93°49′57″W) during the growing season of 2007. Data were segregated into onshore and...
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crcansciencepubl:10.1139/as-2015-0026 2023-12-17T10:22:55+01:00 Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site Delidjakova, Kristina K. Bello, Richard L. Higuchi, Kaz Pokharel, Bipin 2016 http://dx.doi.org/10.1139/as-2015-0026 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2015-0026 https://cdnsciencepub.com/doi/pdf/10.1139/as-2015-0026 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Arctic Science volume 2, issue 3, page 142-163 ISSN 2368-7460 2368-7460 General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science journal-article 2016 crcansciencepubl https://doi.org/10.1139/as-2015-0026 2023-11-19T13:38:25Z Eddy covariance (EC) estimates of net ecosystem exchange (NEE) and the surface energy balance were gathered from an elevated peat plateau within the Hudson Bay Lowlands near Churchill, Manitoba, Canada (58°43′46″N, 93°49′57″W) during the growing season of 2007. Data were segregated into onshore and offshore wind regimes to assess the advective influence of the generally cold and moist Hudson Bay air masses compared to generally warm and dry air masses of nonmarine origin. Monthly average NEE ranged from an uptake of 0.2 µmol·m −2 ·s −1 in September to 5.6 µmol·m −2 ·s −1 in July. Over the growing season, onshore winds from Hudson Bay contributed to an average 4.2 °C reduction in air temperature and an NEE increase of 27%. When normalized with respect to sunlight receipt, the ratio of gross primary production to photosynthetically active radiation (GPP/PAR) was 26% stronger for offshore regimes than for onshore, while the ratio of ecosystem respiration to PAR (ER/PAR) was 71% stronger for offshore regimes. It was concluded that GPP maintains the same strength for both wind regimes, while ER is significantly stronger for offshore regimes, resulting in reduced NEE capacity during periods when winds originate from inland. Article in Journal/Newspaper Arctic Churchill Hudson Bay Canadian Science Publishing (via Crossref) Canada Hudson Hudson Bay Arctic Science 2 3 142 163 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
spellingShingle |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science Delidjakova, Kristina K. Bello, Richard L. Higuchi, Kaz Pokharel, Bipin Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site |
topic_facet |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
description |
Eddy covariance (EC) estimates of net ecosystem exchange (NEE) and the surface energy balance were gathered from an elevated peat plateau within the Hudson Bay Lowlands near Churchill, Manitoba, Canada (58°43′46″N, 93°49′57″W) during the growing season of 2007. Data were segregated into onshore and offshore wind regimes to assess the advective influence of the generally cold and moist Hudson Bay air masses compared to generally warm and dry air masses of nonmarine origin. Monthly average NEE ranged from an uptake of 0.2 µmol·m −2 ·s −1 in September to 5.6 µmol·m −2 ·s −1 in July. Over the growing season, onshore winds from Hudson Bay contributed to an average 4.2 °C reduction in air temperature and an NEE increase of 27%. When normalized with respect to sunlight receipt, the ratio of gross primary production to photosynthetically active radiation (GPP/PAR) was 26% stronger for offshore regimes than for onshore, while the ratio of ecosystem respiration to PAR (ER/PAR) was 71% stronger for offshore regimes. It was concluded that GPP maintains the same strength for both wind regimes, while ER is significantly stronger for offshore regimes, resulting in reduced NEE capacity during periods when winds originate from inland. |
format |
Article in Journal/Newspaper |
author |
Delidjakova, Kristina K. Bello, Richard L. Higuchi, Kaz Pokharel, Bipin |
author_facet |
Delidjakova, Kristina K. Bello, Richard L. Higuchi, Kaz Pokharel, Bipin |
author_sort |
Delidjakova, Kristina K. |
title |
Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site |
title_short |
Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site |
title_full |
Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site |
title_fullStr |
Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site |
title_full_unstemmed |
Influence of Hudson Bay on the carbon dynamics of a Hudson Bay Lowlands coastal site |
title_sort |
influence of hudson bay on the carbon dynamics of a hudson bay lowlands coastal site |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
http://dx.doi.org/10.1139/as-2015-0026 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2015-0026 https://cdnsciencepub.com/doi/pdf/10.1139/as-2015-0026 |
geographic |
Canada Hudson Hudson Bay |
geographic_facet |
Canada Hudson Hudson Bay |
genre |
Arctic Churchill Hudson Bay |
genre_facet |
Arctic Churchill Hudson Bay |
op_source |
Arctic Science volume 2, issue 3, page 142-163 ISSN 2368-7460 2368-7460 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/as-2015-0026 |
container_title |
Arctic Science |
container_volume |
2 |
container_issue |
3 |
container_start_page |
142 |
op_container_end_page |
163 |
_version_ |
1785554441772990464 |