Boundary-layer and air quality study at “Station Nord” in Greenland
Knowledge on the forcing mechanisms (meteorological and chemical) that come into play in the Arctic environment is highly uncertain. We analyse data from measurements and mesoscale meteorological modelling for periods in summer 2011 and winter 2011/2012 to elucidate the boundary-layer features at St...
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ftdtupubl:oai:pure.atira.dk:publications/963c1d4d-fd33-4196-bebe-baba24a16227 2023-05-15T15:07:33+02:00 Boundary-layer and air quality study at “Station Nord” in Greenland Batchvarova, Ekaterina Gryning, Sven-Erik Skov, Henrik Sørensen, Lise Lotte Munkel, Christoph 2013 application/pdf https://orbit.dtu.dk/en/publications/963c1d4d-fd33-4196-bebe-baba24a16227 https://backend.orbit.dtu.dk/ws/files/59088589/Boundary_layer_and_air_quality.pdf eng eng info:eu-repo/semantics/openAccess Batchvarova , E , Gryning , S-E , Skov , H , Sørensen , L L & Munkel , C 2013 , Boundary-layer and air quality study at “Station Nord” in Greenland . in 33rd International Technical Meeting on Air Pollution Modelling and its Application . 33rd International Technical Meeting on Air Pollution Modelling and its Application , Miami, FL , United States , 26/08/2013 . conferenceObject 2013 ftdtupubl 2022-08-14T08:16:11Z Knowledge on the forcing mechanisms (meteorological and chemical) that come into play in the Arctic environment is highly uncertain. We analyse data from measurements and mesoscale meteorological modelling for periods in summer 2011 and winter 2011/2012 to elucidate the boundary-layer features at Station Nord situated in Northern Greenland (81.6N, 16.7W). A major challenge for modelling is to connect local-scale observations with larger scales modelling of the atmosphere. In particular, in summer, bare soil in the vicinity of the station may not be present in the global boundary and surface conditions. Thus, in sum-mer the deviations of modeled from measured values of temperature and humidity near the surface are larger compared to winter. We found that the underestima-tion of temperature near the ground is larger at clear sky compared to cloudy conditions; and the underestimation reached up to height 1-1,5 km at clear sky and up to the first 100 m for the cloudy days. The measured wind speed profiles showed high variability, while the modeled were smoothed. During summer the modeled wind speed was close to or larger than the measured without clear indi-cation for the role of clouds. In winter, the over-estimation of wind speed was more pronounced. Conference Object Arctic Greenland Technical University of Denmark: DTU Orbit Arctic Greenland Station Nord ENVELOPE(-16.663,-16.663,81.599,81.599) |
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Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
Knowledge on the forcing mechanisms (meteorological and chemical) that come into play in the Arctic environment is highly uncertain. We analyse data from measurements and mesoscale meteorological modelling for periods in summer 2011 and winter 2011/2012 to elucidate the boundary-layer features at Station Nord situated in Northern Greenland (81.6N, 16.7W). A major challenge for modelling is to connect local-scale observations with larger scales modelling of the atmosphere. In particular, in summer, bare soil in the vicinity of the station may not be present in the global boundary and surface conditions. Thus, in sum-mer the deviations of modeled from measured values of temperature and humidity near the surface are larger compared to winter. We found that the underestima-tion of temperature near the ground is larger at clear sky compared to cloudy conditions; and the underestimation reached up to height 1-1,5 km at clear sky and up to the first 100 m for the cloudy days. The measured wind speed profiles showed high variability, while the modeled were smoothed. During summer the modeled wind speed was close to or larger than the measured without clear indi-cation for the role of clouds. In winter, the over-estimation of wind speed was more pronounced. |
format |
Conference Object |
author |
Batchvarova, Ekaterina Gryning, Sven-Erik Skov, Henrik Sørensen, Lise Lotte Munkel, Christoph |
spellingShingle |
Batchvarova, Ekaterina Gryning, Sven-Erik Skov, Henrik Sørensen, Lise Lotte Munkel, Christoph Boundary-layer and air quality study at “Station Nord” in Greenland |
author_facet |
Batchvarova, Ekaterina Gryning, Sven-Erik Skov, Henrik Sørensen, Lise Lotte Munkel, Christoph |
author_sort |
Batchvarova, Ekaterina |
title |
Boundary-layer and air quality study at “Station Nord” in Greenland |
title_short |
Boundary-layer and air quality study at “Station Nord” in Greenland |
title_full |
Boundary-layer and air quality study at “Station Nord” in Greenland |
title_fullStr |
Boundary-layer and air quality study at “Station Nord” in Greenland |
title_full_unstemmed |
Boundary-layer and air quality study at “Station Nord” in Greenland |
title_sort |
boundary-layer and air quality study at “station nord” in greenland |
publishDate |
2013 |
url |
https://orbit.dtu.dk/en/publications/963c1d4d-fd33-4196-bebe-baba24a16227 https://backend.orbit.dtu.dk/ws/files/59088589/Boundary_layer_and_air_quality.pdf |
long_lat |
ENVELOPE(-16.663,-16.663,81.599,81.599) |
geographic |
Arctic Greenland Station Nord |
geographic_facet |
Arctic Greenland Station Nord |
genre |
Arctic Greenland |
genre_facet |
Arctic Greenland |
op_source |
Batchvarova , E , Gryning , S-E , Skov , H , Sørensen , L L & Munkel , C 2013 , Boundary-layer and air quality study at “Station Nord” in Greenland . in 33rd International Technical Meeting on Air Pollution Modelling and its Application . 33rd International Technical Meeting on Air Pollution Modelling and its Application , Miami, FL , United States , 26/08/2013 . |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766339040244662272 |