Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques
From observations in a High Arctic valley and ice-free fjord in Svalbard during March and April 2013 we show that, while some caution needs to be applied, ordinary slow-response instruments placed over a snow-water-snow surface can be effectively used as a proxy for more sophisticated measuring tech...
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Uppsala universitet, Luft-, vatten- och landskapslära
2020
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423775 https://doi.org/10.1016/j.polar.2020.100549 |
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ftuppsalauniv:oai:DiVA.org:uu-423775 2023-05-15T14:52:31+02:00 Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques Sjöblom, Anna Andersson, Andreas Rutgersson, Anna Falck, Eva 2020 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423775 https://doi.org/10.1016/j.polar.2020.100549 eng eng Uppsala universitet, Luft-, vatten- och landskapslära Department of Arctic Geophysics, University Centre in Svalbard, P.O. Box 156, 9171, Longyearbyen, Norway Department of Ecotechnology and Sustainable Building Engineering, Mid-Sweden University, Akademigatan 1, 83125, Östersund, Sweden Polar Science, 1873-9652, 2020, 25, http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423775 doi:10.1016/j.polar.2020.100549 ISI:000580079200010 info:eu-repo/semantics/openAccess Arctic Svalbard Turbulent fluxes Measuring techniques Air-sea interaction Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Article in journal info:eu-repo/semantics/article text 2020 ftuppsalauniv https://doi.org/10.1016/j.polar.2020.100549 2023-02-23T21:53:56Z From observations in a High Arctic valley and ice-free fjord in Svalbard during March and April 2013 we show that, while some caution needs to be applied, ordinary slow-response instruments placed over a snow-water-snow surface can be effectively used as a proxy for more sophisticated measuring techniques at complex sites such as leads or a polynyas. The turbulent fluxes of momentum, sensible and latent heat were measured at three locations with a snow-water-snow fetch. At the snow site upwind of the water, the stability was generally stable, the momentum flux small, and the sensible heat flux positive. Over the water however, the internal boundary layer that was formed gave on average an increased vertical gradient in wind speed, temperature, and humidity and turbulent heat fluxes exceeding 400 W m−2. At the snow surface downwind of the water, the conditions were highly variable and all the fluxes were, on average, of very small magnitude. That the behaviour of the internal boundary layers can be highly variable is demonstrated through four case studies. This phenomenon is likely to increase in occurrence with a changing climate. Article in Journal/Newspaper Arctic Polar Science Polar Science Svalbard Uppsala University: Publications (DiVA) Arctic Svalbard Polar Science 25 100549 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Arctic Svalbard Turbulent fluxes Measuring techniques Air-sea interaction Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
spellingShingle |
Arctic Svalbard Turbulent fluxes Measuring techniques Air-sea interaction Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Sjöblom, Anna Andersson, Andreas Rutgersson, Anna Falck, Eva Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques |
topic_facet |
Arctic Svalbard Turbulent fluxes Measuring techniques Air-sea interaction Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning |
description |
From observations in a High Arctic valley and ice-free fjord in Svalbard during March and April 2013 we show that, while some caution needs to be applied, ordinary slow-response instruments placed over a snow-water-snow surface can be effectively used as a proxy for more sophisticated measuring techniques at complex sites such as leads or a polynyas. The turbulent fluxes of momentum, sensible and latent heat were measured at three locations with a snow-water-snow fetch. At the snow site upwind of the water, the stability was generally stable, the momentum flux small, and the sensible heat flux positive. Over the water however, the internal boundary layer that was formed gave on average an increased vertical gradient in wind speed, temperature, and humidity and turbulent heat fluxes exceeding 400 W m−2. At the snow surface downwind of the water, the conditions were highly variable and all the fluxes were, on average, of very small magnitude. That the behaviour of the internal boundary layers can be highly variable is demonstrated through four case studies. This phenomenon is likely to increase in occurrence with a changing climate. |
format |
Article in Journal/Newspaper |
author |
Sjöblom, Anna Andersson, Andreas Rutgersson, Anna Falck, Eva |
author_facet |
Sjöblom, Anna Andersson, Andreas Rutgersson, Anna Falck, Eva |
author_sort |
Sjöblom, Anna |
title |
Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques |
title_short |
Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques |
title_full |
Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques |
title_fullStr |
Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques |
title_full_unstemmed |
Flow over a snow-water-snow surface in the high Arctic, Svalbard : Turbulent fluxes and comparison of observation techniques |
title_sort |
flow over a snow-water-snow surface in the high arctic, svalbard : turbulent fluxes and comparison of observation techniques |
publisher |
Uppsala universitet, Luft-, vatten- och landskapslära |
publishDate |
2020 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423775 https://doi.org/10.1016/j.polar.2020.100549 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Polar Science Polar Science Svalbard |
genre_facet |
Arctic Polar Science Polar Science Svalbard |
op_relation |
Polar Science, 1873-9652, 2020, 25, http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423775 doi:10.1016/j.polar.2020.100549 ISI:000580079200010 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.polar.2020.100549 |
container_title |
Polar Science |
container_volume |
25 |
container_start_page |
100549 |
_version_ |
1766323758381924352 |