Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range
Black carbon (BC) is one of the light-absorbing particles that reduce the albedo of snow surfaces. Snow samples were taken from the surface of three glaciers in the Alaska Range in mid-April 2017. The BC size distribution and concentration were analyzed with a laser-induced incandescence (LII) metho...
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ftnipr:oai:nipr.repo.nii.ac.jp:00016409 2023-05-15T13:09:37+02:00 Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range 2021-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16409 http://id.nii.ac.jp/1291/00016287/ en eng https://doi.org/10.1016/j.polar.2020.100572 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16409 http://id.nii.ac.jp/1291/00016287/ Polar Science, 100572(2021-03) 18739652 Black carbon Alaska Snow Glacier Journal Article 2021 ftnipr https://doi.org/10.1016/j.polar.2020.100572 2022-12-03T19:43:21Z Black carbon (BC) is one of the light-absorbing particles that reduce the albedo of snow surfaces. Snow samples were taken from the surface of three glaciers in the Alaska Range in mid-April 2017. The BC size distribution and concentration were analyzed with a laser-induced incandescence (LII) method. The BC concentration of the snow samples was 1–6 μg L−1 and 0.5–3.1 μg L−1 at a depth of 0–2 cm (surface) and 2–10 cm (subsurface), respectively. These values are comparable to other Arctic areas and are considered to be the Alaskan background level. The BC concentrations are 0.5% of those of insoluble solid particles (ISPs) measured using an electrical sensing zone method. The surface albedo change due to BC and other ISPs concentrations was estimated to be 0.004–0.007 for the snow surface in April. The ablation at the observation sites on Gulkana Glacier would be 1.2% larger in the ablation season due to black carbon deposition. The chemical transport model revealed that 17%–34% of BC originates from biomass burning in Asia and Siberia, and 60% of BC originates from China in this study. Article in Journal/Newspaper alaska range albedo Arctic black carbon glacier glaciers Polar Science Polar Science Alaska Siberia National Institute of Polar Research Repository, Japan Arctic Polar Science 27 100572 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Black carbon Alaska Snow Glacier |
spellingShingle |
Black carbon Alaska Snow Glacier Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range |
topic_facet |
Black carbon Alaska Snow Glacier |
description |
Black carbon (BC) is one of the light-absorbing particles that reduce the albedo of snow surfaces. Snow samples were taken from the surface of three glaciers in the Alaska Range in mid-April 2017. The BC size distribution and concentration were analyzed with a laser-induced incandescence (LII) method. The BC concentration of the snow samples was 1–6 μg L−1 and 0.5–3.1 μg L−1 at a depth of 0–2 cm (surface) and 2–10 cm (subsurface), respectively. These values are comparable to other Arctic areas and are considered to be the Alaskan background level. The BC concentrations are 0.5% of those of insoluble solid particles (ISPs) measured using an electrical sensing zone method. The surface albedo change due to BC and other ISPs concentrations was estimated to be 0.004–0.007 for the snow surface in April. The ablation at the observation sites on Gulkana Glacier would be 1.2% larger in the ablation season due to black carbon deposition. The chemical transport model revealed that 17%–34% of BC originates from biomass burning in Asia and Siberia, and 60% of BC originates from China in this study. |
format |
Article in Journal/Newspaper |
title |
Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range |
title_short |
Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range |
title_full |
Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range |
title_fullStr |
Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range |
title_full_unstemmed |
Mass concentration and origin of black carbon in spring snow on glaciers in the Alaska Range |
title_sort |
mass concentration and origin of black carbon in spring snow on glaciers in the alaska range |
publishDate |
2021 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16409 http://id.nii.ac.jp/1291/00016287/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
alaska range albedo Arctic black carbon glacier glaciers Polar Science Polar Science Alaska Siberia |
genre_facet |
alaska range albedo Arctic black carbon glacier glaciers Polar Science Polar Science Alaska Siberia |
op_relation |
https://doi.org/10.1016/j.polar.2020.100572 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16409 http://id.nii.ac.jp/1291/00016287/ Polar Science, 100572(2021-03) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2020.100572 |
container_title |
Polar Science |
container_volume |
27 |
container_start_page |
100572 |
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1766190501042585600 |