Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface
Spatial and temporal trends of remotely sensed sea-ice cover, sea surface temperatures, chlorophyll-a concentration and primary production in the Baffin Bay, Davis Strait and Labrador Sea were analyzed for the 1998–2017 period. We found spatial variability in the trends of these cryospheric, biologi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2020-12-01
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| Series: | Annals of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S026030552000066X/type/journal_article |
| _version_ | 1811157266296995840 |
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| author | Ashley V. York Karen E. Frey Luisa N. C. Young |
| author_facet | Ashley V. York Karen E. Frey Luisa N. C. Young |
| author_sort | Ashley V. York |
| collection | DOAJ |
| description | Spatial and temporal trends of remotely sensed sea-ice cover, sea surface temperatures, chlorophyll-a concentration and primary production in the Baffin Bay, Davis Strait and Labrador Sea were analyzed for the 1998–2017 period. We found spatial variability in the trends of these cryospheric, biologic and oceanographic phenomena. For example, in the northern Baffin Bay, we observed decreases in annual sea-ice persistence, yet increases along the Labrador Sea-ice edge during winter, with the latter having significant correlations with broader atmospheric patterns. In general, we observed increases in summer sea surface temperatures across the study region, except a small area of cooling along the southern Greenlandic coast. We also found significant negative trends in April chlorophyll-a and primary production followed by significant positive trends for both biological phenomena in May, owing to anomalously high values in 2014 and 2015. Notably, we found a significant positive correlation between days of monthly sea ice presence in April with May primary production quantities. Finally, we found a significant positive trend in total annual primary production over the study period. This novel finding suggests an important relationship between the timing of breakup along the sea-ice edge and peaks in biological production. |
| first_indexed | 2024-04-10T05:03:12Z |
| format | Article |
| id | doaj.art-0899779eea244ec6800fb4580cfd3c83 |
| institution | Directory Open Access Journal |
| issn | 0260-3055 1727-5644 |
| language | English |
| last_indexed | 2024-04-10T05:03:12Z |
| publishDate | 2020-12-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Annals of Glaciology |
| spelling | doaj.art-0899779eea244ec6800fb4580cfd3c832023-03-09T12:27:40ZengCambridge University PressAnnals of Glaciology0260-30551727-56442020-12-016142644010.1017/aog.2020.66Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interfaceAshley V. York0https://orcid.org/0000-0001-9058-3470Karen E. Frey1Luisa N. C. Young2Rowan University, Department of Geography, Planning and Sustainability, Glassboro, New Jersey, USA Clark University, Graduate School of Geography, Worcester, Massachusetts, USAClark University, Graduate School of Geography, Worcester, Massachusetts, USAClark University, Graduate School of Geography, Worcester, Massachusetts, USASpatial and temporal trends of remotely sensed sea-ice cover, sea surface temperatures, chlorophyll-a concentration and primary production in the Baffin Bay, Davis Strait and Labrador Sea were analyzed for the 1998–2017 period. We found spatial variability in the trends of these cryospheric, biologic and oceanographic phenomena. For example, in the northern Baffin Bay, we observed decreases in annual sea-ice persistence, yet increases along the Labrador Sea-ice edge during winter, with the latter having significant correlations with broader atmospheric patterns. In general, we observed increases in summer sea surface temperatures across the study region, except a small area of cooling along the southern Greenlandic coast. We also found significant negative trends in April chlorophyll-a and primary production followed by significant positive trends for both biological phenomena in May, owing to anomalously high values in 2014 and 2015. Notably, we found a significant positive correlation between days of monthly sea ice presence in April with May primary production quantities. Finally, we found a significant positive trend in total annual primary production over the study period. This novel finding suggests an important relationship between the timing of breakup along the sea-ice edge and peaks in biological production.https://www.cambridge.org/core/product/identifier/S026030552000066X/type/journal_articlePolar and subpolar oceansremote sensingsea ice |
| spellingShingle | Ashley V. York Karen E. Frey Luisa N. C. Young Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface Annals of Glaciology Polar and subpolar oceans remote sensing sea ice |
| title | Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface |
| title_full | Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface |
| title_fullStr | Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface |
| title_full_unstemmed | Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface |
| title_short | Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface |
| title_sort | changes at the edge trends in sea ice ocean temperature and ocean color at the northwest atlantic southern arctic interface |
| topic | Polar and subpolar oceans remote sensing sea ice |
| url | https://www.cambridge.org/core/product/identifier/S026030552000066X/type/journal_article |
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