Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation
We evaluate how precipitation forcing data used in glacier mass balance models characterize snow accumulation events on synoptic timescales for two glaciers in north-western Svalbard (Kongsvegen and Holtedahlfonna). Using sonic ranger (snow depth) and wind speed data from automatic weather stations...
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Language: | English |
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Norwegian Polar Institute (NPI)
2019
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Online Access: | http://hdl.handle.net/10852/76529 http://urn.nb.no/URN:NBN:no-79608 https://doi.org/10.33265/polar.v38.3364 |
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ftoslouniv:oai:www.duo.uio.no:10852/76529 2023-05-15T14:27:59+02:00 Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation Pramanik, Ankit Kohler, Jack Schuler, Thomas Van Pelt, Ward Cohen, Lana 2019-10-24T13:13:16Z http://hdl.handle.net/10852/76529 http://urn.nb.no/URN:NBN:no-79608 https://doi.org/10.33265/polar.v38.3364 EN eng Norwegian Polar Institute (NPI) EI/NPI - Centre for Ice, Climate and Ecosystems NFR/243808 OTHER/Polish Academy of Science - PL12-0081 http://urn.nb.no/URN:NBN:no-79608 Pramanik, Ankit Kohler, Jack Schuler, Thomas Van Pelt, Ward Cohen, Lana . Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation. Polar Research. 2019, 38, 1-13 http://hdl.handle.net/10852/76529 1740219 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Polar Research&rft.volume=38&rft.spage=1&rft.date=2019 Polar Research 38 0 1 13 https://doi.org/10.33265/polar.v38.3364 URN:NBN:no-79608 Fulltext https://www.duo.uio.no/bitstream/handle/10852/76529/2/3364-Article%2BText-25325-1-10-20190830.pdf Attribution-NonCommercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/ CC-BY-NC 0800-0395 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2019 ftoslouniv https://doi.org/10.33265/polar.v38.3364 2020-06-21T08:54:32Z We evaluate how precipitation forcing data used in glacier mass balance models characterize snow accumulation events on synoptic timescales for two glaciers in north-western Svalbard (Kongsvegen and Holtedahlfonna). Using sonic ranger (snow depth) and wind speed data from automatic weather stations located on the glaciers, we distinguish accumulation events occurring under either calm or windy conditions. We show clear differences in the timing and magnitude of snow accumulation events between the two neighbouring glaciers, illustrating the spatial heterogeneity of snow accumulation in this region. The accumulation measurements show that at equivalent elevations, Kongsvegen receives more snowfall than neighbouring Holtedahlfonna, and that Kongsvegen is more affected by wind-driven snow redistribution than Holtedahlfonna. This is consistent with the synoptically-driven precipitation patterns in the region. Accumulation events are then compared to precipitation data from the nearest meteorological station in Ny-Ålesund (ca. 30 km distant) and to a downscaled snowfall data product based on the ERA-Interim reanalysis (nearest gridpoint ca. 300 m distant). Evaluation of the synchrony of observed events at the glacier sites and the precipitation products shows that the ERA-Interim precipitation data reproduce more snowfall events than the Ny-Ålesund station data, suggesting that the precipitation fields from distributed reanalysis data provide a more reasonable representation of accumulation on the study glaciers, even over short timescales. Article in Journal/Newspaper Arctic Arctic glacier Ny Ålesund Ny-Ålesund Polar Research Svalbard Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Holtedahlfonna ENVELOPE(13.730,13.730,79.011,79.011) Kongsvegen ENVELOPE(12.657,12.657,78.854,78.854) Ny-Ålesund Svalbard Polar Research 38 0 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
We evaluate how precipitation forcing data used in glacier mass balance models characterize snow accumulation events on synoptic timescales for two glaciers in north-western Svalbard (Kongsvegen and Holtedahlfonna). Using sonic ranger (snow depth) and wind speed data from automatic weather stations located on the glaciers, we distinguish accumulation events occurring under either calm or windy conditions. We show clear differences in the timing and magnitude of snow accumulation events between the two neighbouring glaciers, illustrating the spatial heterogeneity of snow accumulation in this region. The accumulation measurements show that at equivalent elevations, Kongsvegen receives more snowfall than neighbouring Holtedahlfonna, and that Kongsvegen is more affected by wind-driven snow redistribution than Holtedahlfonna. This is consistent with the synoptically-driven precipitation patterns in the region. Accumulation events are then compared to precipitation data from the nearest meteorological station in Ny-Ålesund (ca. 30 km distant) and to a downscaled snowfall data product based on the ERA-Interim reanalysis (nearest gridpoint ca. 300 m distant). Evaluation of the synchrony of observed events at the glacier sites and the precipitation products shows that the ERA-Interim precipitation data reproduce more snowfall events than the Ny-Ålesund station data, suggesting that the precipitation fields from distributed reanalysis data provide a more reasonable representation of accumulation on the study glaciers, even over short timescales. |
format |
Article in Journal/Newspaper |
author |
Pramanik, Ankit Kohler, Jack Schuler, Thomas Van Pelt, Ward Cohen, Lana |
spellingShingle |
Pramanik, Ankit Kohler, Jack Schuler, Thomas Van Pelt, Ward Cohen, Lana Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation |
author_facet |
Pramanik, Ankit Kohler, Jack Schuler, Thomas Van Pelt, Ward Cohen, Lana |
author_sort |
Pramanik, Ankit |
title |
Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation |
title_short |
Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation |
title_full |
Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation |
title_fullStr |
Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation |
title_full_unstemmed |
Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation |
title_sort |
comparison of snow accumulation events on two high-arctic glaciers to model-derived and observed precipitation |
publisher |
Norwegian Polar Institute (NPI) |
publishDate |
2019 |
url |
http://hdl.handle.net/10852/76529 http://urn.nb.no/URN:NBN:no-79608 https://doi.org/10.33265/polar.v38.3364 |
long_lat |
ENVELOPE(13.730,13.730,79.011,79.011) ENVELOPE(12.657,12.657,78.854,78.854) |
geographic |
Arctic Holtedahlfonna Kongsvegen Ny-Ålesund Svalbard |
geographic_facet |
Arctic Holtedahlfonna Kongsvegen Ny-Ålesund Svalbard |
genre |
Arctic Arctic glacier Ny Ålesund Ny-Ålesund Polar Research Svalbard |
genre_facet |
Arctic Arctic glacier Ny Ålesund Ny-Ålesund Polar Research Svalbard |
op_source |
0800-0395 |
op_relation |
EI/NPI - Centre for Ice, Climate and Ecosystems NFR/243808 OTHER/Polish Academy of Science - PL12-0081 http://urn.nb.no/URN:NBN:no-79608 Pramanik, Ankit Kohler, Jack Schuler, Thomas Van Pelt, Ward Cohen, Lana . Comparison of snow accumulation events on two High-Arctic glaciers to model-derived and observed precipitation. Polar Research. 2019, 38, 1-13 http://hdl.handle.net/10852/76529 1740219 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Polar Research&rft.volume=38&rft.spage=1&rft.date=2019 Polar Research 38 0 1 13 https://doi.org/10.33265/polar.v38.3364 URN:NBN:no-79608 Fulltext https://www.duo.uio.no/bitstream/handle/10852/76529/2/3364-Article%2BText-25325-1-10-20190830.pdf |
op_rights |
Attribution-NonCommercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/ |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.33265/polar.v38.3364 |
container_title |
Polar Research |
container_volume |
38 |
container_issue |
0 |
_version_ |
1766302101227438080 |