Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux
ABSTRACT The quantification of snow transport, both in wind tunnels and the field, apply particle counting methods limited to punctual sampling of relatively small volumes. Particle counting can only capture horizontal mass fluxes, failing to measure snow erosion or deposition. Herein, we present a...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2019
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/jog.2019.3 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000030 |
id |
crcambridgeupr:10.1017/jog.2019.3 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/jog.2019.3 2024-03-03T08:46:00+00:00 Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux CRIVELLI, PHILIP PATERNA, ENRICO LEHNING, MICHAEL 2019 http://dx.doi.org/10.1017/jog.2019.3 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000030 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 65, issue 250, page 249-262 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2019 crcambridgeupr https://doi.org/10.1017/jog.2019.3 2024-02-08T08:40:06Z ABSTRACT The quantification of snow transport, both in wind tunnels and the field, apply particle counting methods limited to punctual sampling of relatively small volumes. Particle counting can only capture horizontal mass fluxes, failing to measure snow erosion or deposition. Herein, we present a novel low-cost sensor tool, based on a Microsoft Kinect, adapted to capture snow surface changes during snow drifting at unprecedented spatial and temporal resolutions. In the wind tunnel setting of these experiments we observe a balance between erosion and deposition at low wind speeds, while erosion is dominant at higher wind speeds. Significant differences in power spectral densities of surface mass flux and horizontal particle mass flux are observed. We show that for the saltation-length-scale parameter λ = 1, the integrated particle flux can be used to estimate the total surface mass flux in the wind tunnel. This provides an important basis to interpret mass flux measurements in the field. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 65 250 249 262 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes CRIVELLI, PHILIP PATERNA, ENRICO LEHNING, MICHAEL Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux |
topic_facet |
Earth-Surface Processes |
description |
ABSTRACT The quantification of snow transport, both in wind tunnels and the field, apply particle counting methods limited to punctual sampling of relatively small volumes. Particle counting can only capture horizontal mass fluxes, failing to measure snow erosion or deposition. Herein, we present a novel low-cost sensor tool, based on a Microsoft Kinect, adapted to capture snow surface changes during snow drifting at unprecedented spatial and temporal resolutions. In the wind tunnel setting of these experiments we observe a balance between erosion and deposition at low wind speeds, while erosion is dominant at higher wind speeds. Significant differences in power spectral densities of surface mass flux and horizontal particle mass flux are observed. We show that for the saltation-length-scale parameter λ = 1, the integrated particle flux can be used to estimate the total surface mass flux in the wind tunnel. This provides an important basis to interpret mass flux measurements in the field. |
format |
Article in Journal/Newspaper |
author |
CRIVELLI, PHILIP PATERNA, ENRICO LEHNING, MICHAEL |
author_facet |
CRIVELLI, PHILIP PATERNA, ENRICO LEHNING, MICHAEL |
author_sort |
CRIVELLI, PHILIP |
title |
Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux |
title_short |
Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux |
title_full |
Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux |
title_fullStr |
Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux |
title_full_unstemmed |
Spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux |
title_sort |
spatiotemporal dynamics of snow erosion, deposition and horizontal mass flux |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/jog.2019.3 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000030 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 65, issue 250, page 249-262 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2019.3 |
container_title |
Journal of Glaciology |
container_volume |
65 |
container_issue |
250 |
container_start_page |
249 |
op_container_end_page |
262 |
_version_ |
1792501769242148864 |