Glacier surface temperatures in the Canadian High Arctic, 2000–15
Canada's Queen Elizabeth Islands (QEI) contain ~14% of the world's glacier and ice-cap area. Sparse in-situ measurements indicate that interannual variability in glacier surface mass balance in this region is driven primarily by variations in summer melt, and that the annual surface mass b...
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ftdoajarticles:oai:doaj.org/article:790f0dac6fe34d6ab9c59788d0964616 2023-05-15T14:57:56+02:00 Glacier surface temperatures in the Canadian High Arctic, 2000–15 COLLEEN A. MORTIMER MARTIN SHARP BERT WOUTERS 2016-10-01T00:00:00Z https://doi.org/10.1017/jog.2016.80 https://doaj.org/article/790f0dac6fe34d6ab9c59788d0964616 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143016000800/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.80 0022-1430 1727-5652 https://doaj.org/article/790f0dac6fe34d6ab9c59788d0964616 Journal of Glaciology, Vol 62, Pp 963-975 (2016) Canadian arctic climate change ice temperature remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2016 ftdoajarticles https://doi.org/10.1017/jog.2016.80 2023-03-12T01:30:59Z Canada's Queen Elizabeth Islands (QEI) contain ~14% of the world's glacier and ice-cap area. Sparse in-situ measurements indicate that interannual variability in glacier surface mass balance in this region is driven primarily by variations in summer melt, and that the annual surface mass balance of four index glaciers has become increasingly negative since 2007. Here, we use a 16-a record of satellite-derived mean summer (June–August) land surface temperatures (LST) from NASA's Moderate Resolution Imaging Spectroradiometer to investigate large-scale spatial and temporal variability in the duration and intensity of summer melt across glaciated surfaces in the QEI from 2000 to 2015. During this period, QEI mean summer glacier surface temperatures increased at an average rate of 0.06 ± 0.04°C a−1, for a total of nearly 1°C. Most of this increase occurred between 2005 and 2012, when mean summer near-surface (2 m) and upper-air (700 hPa) temperatures were 1.0–1.2°C higher than the 1948–2015 mean. There is a strong correlation between the glacier LST and 700 hPa air temperature records (r> 0.8). The period 2005–12, when mean summer LSTs were anomalously high, was likely the warmest period in the region since at least 1948. Article in Journal/Newspaper Arctic Climate change Ice cap Journal of Glaciology Queen Elizabeth Islands Directory of Open Access Journals: DOAJ Articles Arctic Journal of Glaciology 62 235 963 975 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Canadian arctic climate change ice temperature remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Canadian arctic climate change ice temperature remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 COLLEEN A. MORTIMER MARTIN SHARP BERT WOUTERS Glacier surface temperatures in the Canadian High Arctic, 2000–15 |
topic_facet |
Canadian arctic climate change ice temperature remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Canada's Queen Elizabeth Islands (QEI) contain ~14% of the world's glacier and ice-cap area. Sparse in-situ measurements indicate that interannual variability in glacier surface mass balance in this region is driven primarily by variations in summer melt, and that the annual surface mass balance of four index glaciers has become increasingly negative since 2007. Here, we use a 16-a record of satellite-derived mean summer (June–August) land surface temperatures (LST) from NASA's Moderate Resolution Imaging Spectroradiometer to investigate large-scale spatial and temporal variability in the duration and intensity of summer melt across glaciated surfaces in the QEI from 2000 to 2015. During this period, QEI mean summer glacier surface temperatures increased at an average rate of 0.06 ± 0.04°C a−1, for a total of nearly 1°C. Most of this increase occurred between 2005 and 2012, when mean summer near-surface (2 m) and upper-air (700 hPa) temperatures were 1.0–1.2°C higher than the 1948–2015 mean. There is a strong correlation between the glacier LST and 700 hPa air temperature records (r> 0.8). The period 2005–12, when mean summer LSTs were anomalously high, was likely the warmest period in the region since at least 1948. |
format |
Article in Journal/Newspaper |
author |
COLLEEN A. MORTIMER MARTIN SHARP BERT WOUTERS |
author_facet |
COLLEEN A. MORTIMER MARTIN SHARP BERT WOUTERS |
author_sort |
COLLEEN A. MORTIMER |
title |
Glacier surface temperatures in the Canadian High Arctic, 2000–15 |
title_short |
Glacier surface temperatures in the Canadian High Arctic, 2000–15 |
title_full |
Glacier surface temperatures in the Canadian High Arctic, 2000–15 |
title_fullStr |
Glacier surface temperatures in the Canadian High Arctic, 2000–15 |
title_full_unstemmed |
Glacier surface temperatures in the Canadian High Arctic, 2000–15 |
title_sort |
glacier surface temperatures in the canadian high arctic, 2000–15 |
publisher |
Cambridge University Press |
publishDate |
2016 |
url |
https://doi.org/10.1017/jog.2016.80 https://doaj.org/article/790f0dac6fe34d6ab9c59788d0964616 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Ice cap Journal of Glaciology Queen Elizabeth Islands |
genre_facet |
Arctic Climate change Ice cap Journal of Glaciology Queen Elizabeth Islands |
op_source |
Journal of Glaciology, Vol 62, Pp 963-975 (2016) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143016000800/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2016.80 0022-1430 1727-5652 https://doaj.org/article/790f0dac6fe34d6ab9c59788d0964616 |
op_doi |
https://doi.org/10.1017/jog.2016.80 |
container_title |
Journal of Glaciology |
container_volume |
62 |
container_issue |
235 |
container_start_page |
963 |
op_container_end_page |
975 |
_version_ |
1766330025199534080 |