The local wind field at Ny-� lesund and the Zeppelin mountain at Svalbard

Beine, H. J.; Argentini, Stefania; Maurizi, A.; Mastrantonio, G.; Viola, Angelo

doi:10.1007/s007030170009

Cited by 77 publications

(91 citation statements)

References 3 publications

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“…One possible explanation for this can be the relative isolation of the sampling location upon Midtre Lovénbreen, which is more sheltered (Rasmussen and Kohler, 2007) than the two sites studied by Amato et al (2007). The snowpack at the interior of the Midtre Lovénbreen glacial valley in the present study is far less exposed to the winds that flow over the Kongsvegen glacier and along the coastal plain of Kongsfjord (Beine et al, 2001;Rasmussen and Kohler, 2007), the sites used by Amato et al (2007). The cell abundance showed no correlation with any of the investigated major ions or snow properties (Table 3).…”

Section: Cell Stratigraphymentioning

confidence: 64%

Microbial Cell Retention in a Melting High Arctic Snowpack, Svalbard

Björkman

Žárský

Kühnel

et al. 2014

Arctic, Antarctic, and Alpine Research

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Section: Cell Stratigraphymentioning

confidence: 64%

Microbial Cell Retention in a Melting High Arctic Snowpack, Svalbard

Björkman

Žárský

Kühnel

et al. 2014

Arctic, Antarctic, and Alpine Research

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“…The orography around Ny-Ålesund has a strong influence on the air flow in the lowermost kilometre of the atmosphere (Beine et al 2001;Esau and Ripina 2012). Ny-Ålesund is located at the coast of the northwest-southeast-oriented Kongsfjord that is surrounded by mountains with typical altitudes up to 800 m. The given topography causes a channelling of the flow in this part of the atmosphere in alignment with the valley axis, resulting in a distinct southeast main wind direction throughout all seasons (Fig.…”

Section: Windmentioning

confidence: 99%

Arctic warming, moisture increase and circulation changes observed in the Ny-Ålesund homogenized radiosonde record

Maturilli

Kayser

2016

Theor Appl Climatol

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Radiosonde measurements obtained at the Arctic site Ny-Ålesund (78.9°N, 11.9°E), Svalbard, from 1993 to 2014 have been homogenized accounting for instrumentation discontinuities by correcting known errors in the manufacturer provided profiles. The resulting homogenized radiosonde record is provided as supplementary material at http://doi. pangaea.de/10.1594/PANGAEA.845373. From the homogenized data record, the first Ny-Ålesund upper-air climatology of wind, temperature and humidity is presented, forming the background for the analysis of changes during the 22-year period. Particularly during the winter season, a strong increase in atmospheric temperature and humidity is observed, with a significant warming of the free troposphere in January and February up to 3 K per decade. This winter warming is even more pronounced in the boundary layer below 1 km, presumably amplified by mesoscale processes including e.g. orographic effects or the boundary layer capping inversion. Though the largest contribution to the increasing atmospheric water vapour column in winter originates from the lowermost 2 km, no increase in the contribution by specific humidity inversions is detected. Instead, we find an increase in the humidity content of the large-scale background humidity profiles. At the same time, the tropospheric flow in winter is found to occur less frequent from northerly directions and to the same amount more frequent from the South. We conclude that changes in the atmospheric circulation lead to an enhanced advection of warm and moist air from lower latitudes to the Svalbard region in the winter season, causing the warming and moistening of the atmospheric column above Ny-Ålesund, and link the observations to changes in the Arctic Oscillation.

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“…They give an indication of the upper edge for turbulent mixing. The direction of the wind recorded near the surface is typically along and out of the fjord but with altitude it becomes more variable (Beine et al 2001). Three notable structures were observed with the lidars above the Kongsfjord that exemplify the potential use of highly resolved data over time and in the vertical dimension.…”

Section: Discussionmentioning

confidence: 93%

“…At the observation site the ABL is further modified by orographic effects. Mountains influence the wind flow field (Beine et al 2001, Argentini et al 2003, Kilpeläinen and Sjöblom 2010 and may increase or decrease the turbulent activity created by wind shear (Dörnbrack et al 2010). Changes of the boundary layer properties occur on small spatial scales.…”

Section: Discussionmentioning

confidence: 99%

Inclined lidar observations of boundary layer aerosol particles above the Kongsfjord, Svalbard

et al. 2012

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A b s t r a c tAn inclined lidar with vertical resolution of 0.4 m was used for detailed boundary layer studies and to link observations at Zeppelin Mountain (474 m) and Ny-Ålesund, Svalbard. We report on the observation of aerosol layers directly above the Kongsfjord. On 29 April 2007, a layer of enhanced backscatter was observed in the lowest 25 m above the open water surface. The low depolarization ratio indicated spherical particles. In the afternoon, this layer disappeared. The ultrafine particle concentration at Zeppelin and Corbel station (close to the Kongsfjord) was low. On 1 May 2007, a drying process in the boundary layer was observed. In the morning, the atmosphere up to Zeppelin Mountain showed enhanced values of the backscatter coefficient. Around noon, the top of the highly A. LAMPERT et al. reflecting boundary layer decreased from 350 to 250 m. The top of the boundary layer observed by lidar was confirmed by radiosonde data.

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The local wind field at Ny-� lesund and the Zeppelin mountain at Svalbard

Cited by 77 publications

References 3 publications

Microbial Cell Retention in a Melting High Arctic Snowpack, Svalbard

Microbial Cell Retention in a Melting High Arctic Snowpack, Svalbard

Arctic warming, moisture increase and circulation changes observed in the Ny-Ålesund homogenized radiosonde record

Inclined lidar observations of boundary layer aerosol particles above the Kongsfjord, Svalbard

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