Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard
Climate variability can complicate efforts to interpret any long-term glacier mass-balance trends due to anthropogenic warming. Here we examine the impact of climate variability on the seasonal mass-balance records of 14 glaciers throughout Norway, Sweden and Svalbard using dynamical adjustment, a s...
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Cambridge University Press
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ftdoajarticles:oai:doaj.org/article:e3e51bebfe204190aba60c08034d084f 2023-05-15T15:09:57+02:00 Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard DAVID BROOKING BONAN JOHN ERICH CHRISTIAN KNUT CHRISTIANSON 2019-08-01T00:00:00Z https://doi.org/10.1017/jog.2019.35 https://doaj.org/article/e3e51bebfe204190aba60c08034d084f EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143019000352/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.35 0022-1430 1727-5652 https://doaj.org/article/e3e51bebfe204190aba60c08034d084f Journal of Glaciology, Vol 65, Pp 580-594 (2019) atmosphere/ice/ocean interactions climate change glacier fluctuations glacier mass balance ice and climate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1017/jog.2019.35 2023-03-12T01:30:57Z Climate variability can complicate efforts to interpret any long-term glacier mass-balance trends due to anthropogenic warming. Here we examine the impact of climate variability on the seasonal mass-balance records of 14 glaciers throughout Norway, Sweden and Svalbard using dynamical adjustment, a statistical method that removes orthogonal patterns of variability shared between each mass-balance record and sea-level pressure or sea-surface temperature predictor fields. For each glacier, the two leading predictor patterns explain 27–81% of the winter mass-balance variability and 24–69% of the summer mass-balance variability. The spatial and temporal structure of these patterns indicates that accumulation variability for all of the glaciers is strongly related to the North Atlantic Oscillation (NAO), with the Atlantic Multidecadal Oscillation (AMO) also modulating accumulation variability for the northernmost glaciers. Given this result, predicting glacier change in the region may depend on NAO and AMO predictability. In the raw mass-balance records, the glaciers throughout southern Norway have significantly negative summer trends, whereas the glaciers located closer to the Arctic have negative winter trends. Removing the effects of climate variability suggests it can bias trends in mass-balance records that span a few decades, but its effects on most of the longer-term mass-balance trends are minimal. Article in Journal/Newspaper Arctic Climate change glacier glacier Journal of Glaciology North Atlantic North Atlantic oscillation Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Norway Svalbard Journal of Glaciology 65 252 580 594 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmosphere/ice/ocean interactions climate change glacier fluctuations glacier mass balance ice and climate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
atmosphere/ice/ocean interactions climate change glacier fluctuations glacier mass balance ice and climate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 DAVID BROOKING BONAN JOHN ERICH CHRISTIAN KNUT CHRISTIANSON Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard |
topic_facet |
atmosphere/ice/ocean interactions climate change glacier fluctuations glacier mass balance ice and climate Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Climate variability can complicate efforts to interpret any long-term glacier mass-balance trends due to anthropogenic warming. Here we examine the impact of climate variability on the seasonal mass-balance records of 14 glaciers throughout Norway, Sweden and Svalbard using dynamical adjustment, a statistical method that removes orthogonal patterns of variability shared between each mass-balance record and sea-level pressure or sea-surface temperature predictor fields. For each glacier, the two leading predictor patterns explain 27–81% of the winter mass-balance variability and 24–69% of the summer mass-balance variability. The spatial and temporal structure of these patterns indicates that accumulation variability for all of the glaciers is strongly related to the North Atlantic Oscillation (NAO), with the Atlantic Multidecadal Oscillation (AMO) also modulating accumulation variability for the northernmost glaciers. Given this result, predicting glacier change in the region may depend on NAO and AMO predictability. In the raw mass-balance records, the glaciers throughout southern Norway have significantly negative summer trends, whereas the glaciers located closer to the Arctic have negative winter trends. Removing the effects of climate variability suggests it can bias trends in mass-balance records that span a few decades, but its effects on most of the longer-term mass-balance trends are minimal. |
format |
Article in Journal/Newspaper |
author |
DAVID BROOKING BONAN JOHN ERICH CHRISTIAN KNUT CHRISTIANSON |
author_facet |
DAVID BROOKING BONAN JOHN ERICH CHRISTIAN KNUT CHRISTIANSON |
author_sort |
DAVID BROOKING BONAN |
title |
Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard |
title_short |
Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard |
title_full |
Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard |
title_fullStr |
Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard |
title_full_unstemmed |
Influence of North Atlantic climate variability on glacier mass balance in Norway, Sweden and Svalbard |
title_sort |
influence of north atlantic climate variability on glacier mass balance in norway, sweden and svalbard |
publisher |
Cambridge University Press |
publishDate |
2019 |
url |
https://doi.org/10.1017/jog.2019.35 https://doaj.org/article/e3e51bebfe204190aba60c08034d084f |
geographic |
Arctic Norway Svalbard |
geographic_facet |
Arctic Norway Svalbard |
genre |
Arctic Climate change glacier glacier Journal of Glaciology North Atlantic North Atlantic oscillation Svalbard |
genre_facet |
Arctic Climate change glacier glacier Journal of Glaciology North Atlantic North Atlantic oscillation Svalbard |
op_source |
Journal of Glaciology, Vol 65, Pp 580-594 (2019) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143019000352/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2019.35 0022-1430 1727-5652 https://doaj.org/article/e3e51bebfe204190aba60c08034d084f |
op_doi |
https://doi.org/10.1017/jog.2019.35 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
252 |
container_start_page |
580 |
op_container_end_page |
594 |
_version_ |
1766341048090492928 |