Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland
Dust emissions from high-latitude, cold climate environments have started receiving more attention in the past decade. This is because emission frequency and magnitudes are expected to increase with rising global temperatures leading to a reduction in terrestrial ice masses and increases in suitable...
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ftloughboroughun:oai:figshare.com:article/9483920 2023-05-15T16:00:13+02:00 Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland Joanna Bullard Thomas Mockford 2018-03-26T00:00:00Z https://figshare.com/articles/journal_contribution/Seasonal_and_decadal_variability_of_dust_observations_in_the_Kangerlussuaq_area_West_Greenland/9483920 unknown 2134/25548 https://figshare.com/articles/journal_contribution/Seasonal_and_decadal_variability_of_dust_observations_in_the_Kangerlussuaq_area_West_Greenland/9483920 CC BY 4.0 CC-BY Earth Sciences not elsewhere classified untagged Text Journal contribution 2018 ftloughboroughun 2022-01-01T20:02:37Z Dust emissions from high-latitude, cold climate environments have started receiving more attention in the past decade. This is because emission frequency and magnitudes are expected to increase with rising global temperatures leading to a reduction in terrestrial ice masses and increases in suitable sediment for the aeolian system. Of the identified high-latitude dust source regions, Greenland has received relatively little attention. Using World Meteorological Organization (WMO) dust code analysis, this study presents a 70-year record of dust events and preferential dust transport pathways from Kangerlussuaq, west Greenland. A clear seasonal pattern of dust emissions shows increases in dust events in spring and autumn driven by effective winds and sediment supply. The decadal record suggests an increase in the magnitude, but not frequency, of dust events since the early 1990s. Pathways analysis suggests that dust is preferentially transported away from the Greenland Ice Sheet (GrIS) towards the Davis Strait and Labrador Sea. When dust is transported towards the GrIS, it is more likely to be deposited in the ice-marginal ablation zone than on the higher altitude areas of the ice sheet. The impact of dust deposition on terrestrial, cryospheric and aquatic environments is also discussed. Other Non-Article Part of Journal/Newspaper Davis Strait Greenland Ice Sheet Kangerlussuaq Labrador Sea Loughborough University: Figshare Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) |
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Loughborough University: Figshare |
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ftloughboroughun |
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Earth Sciences not elsewhere classified untagged |
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Earth Sciences not elsewhere classified untagged Joanna Bullard Thomas Mockford Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland |
topic_facet |
Earth Sciences not elsewhere classified untagged |
description |
Dust emissions from high-latitude, cold climate environments have started receiving more attention in the past decade. This is because emission frequency and magnitudes are expected to increase with rising global temperatures leading to a reduction in terrestrial ice masses and increases in suitable sediment for the aeolian system. Of the identified high-latitude dust source regions, Greenland has received relatively little attention. Using World Meteorological Organization (WMO) dust code analysis, this study presents a 70-year record of dust events and preferential dust transport pathways from Kangerlussuaq, west Greenland. A clear seasonal pattern of dust emissions shows increases in dust events in spring and autumn driven by effective winds and sediment supply. The decadal record suggests an increase in the magnitude, but not frequency, of dust events since the early 1990s. Pathways analysis suggests that dust is preferentially transported away from the Greenland Ice Sheet (GrIS) towards the Davis Strait and Labrador Sea. When dust is transported towards the GrIS, it is more likely to be deposited in the ice-marginal ablation zone than on the higher altitude areas of the ice sheet. The impact of dust deposition on terrestrial, cryospheric and aquatic environments is also discussed. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Joanna Bullard Thomas Mockford |
author_facet |
Joanna Bullard Thomas Mockford |
author_sort |
Joanna Bullard |
title |
Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland |
title_short |
Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland |
title_full |
Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland |
title_fullStr |
Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland |
title_full_unstemmed |
Seasonal and decadal variability of dust observations in the Kangerlussuaq area, West Greenland |
title_sort |
seasonal and decadal variability of dust observations in the kangerlussuaq area, west greenland |
publishDate |
2018 |
url |
https://figshare.com/articles/journal_contribution/Seasonal_and_decadal_variability_of_dust_observations_in_the_Kangerlussuaq_area_West_Greenland/9483920 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) |
geographic |
Greenland Kangerlussuaq |
geographic_facet |
Greenland Kangerlussuaq |
genre |
Davis Strait Greenland Ice Sheet Kangerlussuaq Labrador Sea |
genre_facet |
Davis Strait Greenland Ice Sheet Kangerlussuaq Labrador Sea |
op_relation |
2134/25548 https://figshare.com/articles/journal_contribution/Seasonal_and_decadal_variability_of_dust_observations_in_the_Kangerlussuaq_area_West_Greenland/9483920 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
_version_ |
1766396111478587392 |