Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden
ABSTRACTIn the rapidly warming circumpolar Arctic, recent research of lakes has focused on their climatology and ecology but is challenged by sparsity of wintertime data. At the c. 48-m-deep and c. 0.5-km2 large proglacial Darfáljávri (Lake Tarfala), located in an arctic–alpine environment in the Sc...
Published in: | Arctic, Antarctic, and Alpine Research |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Taylor & Francis Group
2024
|
Subjects: | |
Online Access: | https://doi.org/10.1080/15230430.2023.2287704 https://doaj.org/article/83e964dd1ddb46ae9f1ce1ac708579cc |
id |
ftdoajarticles:oai:doaj.org/article:83e964dd1ddb46ae9f1ce1ac708579cc |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:83e964dd1ddb46ae9f1ce1ac708579cc 2024-02-04T09:56:08+01:00 Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden Nina Kirchner Jan Weckström Joachim Jansen Frederik Schenk Jamie Barnett Annika Granebeck Matti Leppäranta Atte Korhola 2024-12-01T00:00:00Z https://doi.org/10.1080/15230430.2023.2287704 https://doaj.org/article/83e964dd1ddb46ae9f1ce1ac708579cc EN eng Taylor & Francis Group https://www.tandfonline.com/doi/10.1080/15230430.2023.2287704 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 doi:10.1080/15230430.2023.2287704 1938-4246 1523-0430 https://doaj.org/article/83e964dd1ddb46ae9f1ce1ac708579cc Arctic, Antarctic, and Alpine Research, Vol 56, Iss 1 (2024) Tarfala cryostratification lake ice phenology time-lapse imagery lake temperature Environmental sciences GE1-350 Ecology QH540-549.5 article 2024 ftdoajarticles https://doi.org/10.1080/15230430.2023.2287704 2024-01-07T01:41:56Z ABSTRACTIn the rapidly warming circumpolar Arctic, recent research of lakes has focused on their climatology and ecology but is challenged by sparsity of wintertime data. At the c. 48-m-deep and c. 0.5-km2 large proglacial Darfáljávri (Lake Tarfala), located in an arctic–alpine environment in the Scandinavian Mountains, year-round water temperatures were previously reported for 2016 to 2019. Here, this record is continued for 2019–2020 and 2021–2022, complemented by time-lapse imagery records of the state of the lake surface, as well as degree-day modeling of ice phenology (timing of ice-on and ice-off). Darfáljávri is cryostratified during winter, with interannual variations in the thermocline’s thickness and temperature range. The ice season lasts from October to July. Modeled ice-on dates match observed ones reasonably well; however, observed ice-off dates occur much later than modeled ones, likely because of cold impact from Darfáljávri’s glacial environment as inferred from a comparison with a close tundra lake. Though new insights into the complex lake mixing and ice phenology are provided, it remains to attribute the characteristics of Darfáljávri’s winter stratification to additional potential drivers, such as lake ice thickness, atmospheric heat fluxes, and the water balance of the lake. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Arctic Northern Sweden Tarfala Tundra Directory of Open Access Journals: DOAJ Articles Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) Arctic Complex Lake ENVELOPE(-106.934,-106.934,56.333,56.333) Tarfala ENVELOPE(18.608,18.608,67.914,67.914) Arctic, Antarctic, and Alpine Research 56 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Tarfala cryostratification lake ice phenology time-lapse imagery lake temperature Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
Tarfala cryostratification lake ice phenology time-lapse imagery lake temperature Environmental sciences GE1-350 Ecology QH540-549.5 Nina Kirchner Jan Weckström Joachim Jansen Frederik Schenk Jamie Barnett Annika Granebeck Matti Leppäranta Atte Korhola Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden |
topic_facet |
Tarfala cryostratification lake ice phenology time-lapse imagery lake temperature Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
ABSTRACTIn the rapidly warming circumpolar Arctic, recent research of lakes has focused on their climatology and ecology but is challenged by sparsity of wintertime data. At the c. 48-m-deep and c. 0.5-km2 large proglacial Darfáljávri (Lake Tarfala), located in an arctic–alpine environment in the Scandinavian Mountains, year-round water temperatures were previously reported for 2016 to 2019. Here, this record is continued for 2019–2020 and 2021–2022, complemented by time-lapse imagery records of the state of the lake surface, as well as degree-day modeling of ice phenology (timing of ice-on and ice-off). Darfáljávri is cryostratified during winter, with interannual variations in the thermocline’s thickness and temperature range. The ice season lasts from October to July. Modeled ice-on dates match observed ones reasonably well; however, observed ice-off dates occur much later than modeled ones, likely because of cold impact from Darfáljávri’s glacial environment as inferred from a comparison with a close tundra lake. Though new insights into the complex lake mixing and ice phenology are provided, it remains to attribute the characteristics of Darfáljávri’s winter stratification to additional potential drivers, such as lake ice thickness, atmospheric heat fluxes, and the water balance of the lake. |
format |
Article in Journal/Newspaper |
author |
Nina Kirchner Jan Weckström Joachim Jansen Frederik Schenk Jamie Barnett Annika Granebeck Matti Leppäranta Atte Korhola |
author_facet |
Nina Kirchner Jan Weckström Joachim Jansen Frederik Schenk Jamie Barnett Annika Granebeck Matti Leppäranta Atte Korhola |
author_sort |
Nina Kirchner |
title |
Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden |
title_short |
Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden |
title_full |
Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden |
title_fullStr |
Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden |
title_full_unstemmed |
Water temperature, mixing, and ice phenology in the arctic–alpine Lake Darfáljávri (Lake Tarfala), northern Sweden |
title_sort |
water temperature, mixing, and ice phenology in the arctic–alpine lake darfáljávri (lake tarfala), northern sweden |
publisher |
Taylor & Francis Group |
publishDate |
2024 |
url |
https://doi.org/10.1080/15230430.2023.2287704 https://doaj.org/article/83e964dd1ddb46ae9f1ce1ac708579cc |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) ENVELOPE(-106.934,-106.934,56.333,56.333) ENVELOPE(18.608,18.608,67.914,67.914) |
geographic |
Alpine Lake Arctic Complex Lake Tarfala |
geographic_facet |
Alpine Lake Arctic Complex Lake Tarfala |
genre |
Antarctic and Alpine Research Arctic Arctic Northern Sweden Tarfala Tundra |
genre_facet |
Antarctic and Alpine Research Arctic Arctic Northern Sweden Tarfala Tundra |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 56, Iss 1 (2024) |
op_relation |
https://www.tandfonline.com/doi/10.1080/15230430.2023.2287704 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 doi:10.1080/15230430.2023.2287704 1938-4246 1523-0430 https://doaj.org/article/83e964dd1ddb46ae9f1ce1ac708579cc |
op_doi |
https://doi.org/10.1080/15230430.2023.2287704 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
56 |
container_issue |
1 |
_version_ |
1789960577079050240 |