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Quantifying Relative Contributions of Light-Absorbing Particles From Domestic and Foreign Sources on Snow Melt at Sapporo, Japan During the 2011-2012 Winter
| Title: | Quantifying Relative Contributions of Light-Absorbing Particles From Domestic and Foreign Sources on Snow Melt at Sapporo, Japan During the 2011-2012 Winter |
| Authors: | Niwano, M. Browse this author | | Kajino, M. Browse this author | | Kajikawa, T. Browse this author | | Aoki, T. Browse this author | | Kodama, Y. Browse this author | | Tanikawa, T. Browse this author | | Matoba, S. Browse this author →KAKEN DB |
| Keywords: | light-absorbing particles | | seasonal snow | | physical snowpack model | | regional meteorology-chemistry model | | radiative forcing | | snow cover duration |
| Issue Date: | 28-Aug-2021 |
| Publisher: | American Geophysical Union |
| Journal Title: | Geophysical research letters |
| Volume: | 48 |
| Issue: | 16 |
| Start Page: | e2021GL093940 |
| Publisher DOI: | 10.1029/2021GL093940 |
| Abstract: | Depositions of light-absorbing particles (LAPs), such as black carbon (BC) and dust, on the snow surface modulate the snow albedo; therefore, they are considered key factors of snow-atmosphere interaction in the present-day climate system. However, their detailed roles have not yet been fully elucidated, mainly due to the lack of in-situ measurements. Here, we develop a new model chain NHM-Chem-SMAP, which is composed of a detailed regional meteorology-chemistry model and a multilayered physical snowpack model, and evaluate it using LAPs concentrations data measured at Sapporo, Japan during the 2011-2012 winter. NHM-Chem-SMAP successfully reproduces the in-situ measured seasonal variations in the mass concentrations of BC and dust in the surface snowpack. Furthermore, we find that LAPs from domestic and foreign sources played a role in shortening the snow cover duration by 5 and 10 days, respectively, compared to the completely pure snow condition. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/82803 |
| Appears in Collections: | 低温科学研究所 (Institute of Low Temperature Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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