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 suitabl...
Published in: | Arctic, Antarctic, and Alpine Research |
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Language: | English |
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Taylor & Francis Group
2018
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Online Access: | https://doi.org/10.1080/15230430.2017.1415854 https://doaj.org/article/7dc1ae644c8a4a3f9f1df285b7b22bd5 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:7dc1ae644c8a4a3f9f1df285b7b22bd5 2023-05-15T14:14:19+02:00 Seasonal and decadal variability of dust observations in the Kangerlussuaq area, west Greenland Joanna E. Bullard Tom Mockford 2018-01-01 https://doi.org/10.1080/15230430.2017.1415854 https://doaj.org/article/7dc1ae644c8a4a3f9f1df285b7b22bd5 en eng Taylor & Francis Group 1523-0430 1938-4246 doi:10.1080/15230430.2017.1415854 https://doaj.org/article/7dc1ae644c8a4a3f9f1df285b7b22bd5 undefined Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) dust dust code seasonality envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.1080/15230430.2017.1415854 2023-01-22T17:26:20Z 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 seventy-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) toward the Davis Strait and Labrador Sea. When dust is transported toward 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. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Davis Strait Greenland Ice Sheet Kangerlussuaq Labrador Sea Unknown Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) Arctic, Antarctic, and Alpine Research 50 1 |
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language |
English |
topic |
dust dust code seasonality envir geo |
spellingShingle |
dust dust code seasonality envir geo Joanna E. Bullard Tom Mockford Seasonal and decadal variability of dust observations in the Kangerlussuaq area, west Greenland |
topic_facet |
dust dust code seasonality envir geo |
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 seventy-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) toward the Davis Strait and Labrador Sea. When dust is transported toward 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 |
Article in Journal/Newspaper |
author |
Joanna E. Bullard Tom Mockford |
author_facet |
Joanna E. Bullard Tom Mockford |
author_sort |
Joanna E. 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 |
publisher |
Taylor & Francis Group |
publishDate |
2018 |
url |
https://doi.org/10.1080/15230430.2017.1415854 https://doaj.org/article/7dc1ae644c8a4a3f9f1df285b7b22bd5 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) |
geographic |
Greenland Kangerlussuaq |
geographic_facet |
Greenland Kangerlussuaq |
genre |
Antarctic and Alpine Research Arctic Davis Strait Greenland Ice Sheet Kangerlussuaq Labrador Sea |
genre_facet |
Antarctic and Alpine Research Arctic Davis Strait Greenland Ice Sheet Kangerlussuaq Labrador Sea |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) |
op_relation |
1523-0430 1938-4246 doi:10.1080/15230430.2017.1415854 https://doaj.org/article/7dc1ae644c8a4a3f9f1df285b7b22bd5 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/15230430.2017.1415854 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
50 |
container_issue |
1 |
_version_ |
1766286848489947136 |