ARKTIS 1991 - Cellular Convection over the Norwegian Sea

The field experiment ARKTIS 1991 was an expedition planned by meteorologists of the Collaborative Research Centre 318 entitled "Climatically relevant processes in the system ocean-atmosphere-ice" which is funded by the German Research Foundation and established at the University of Hamburg. The expedition took place in the Norwegian Sea between Northern Norway, Bear Island and Jan Mayen during the period 17 February until 15 March 1991.


The main aim of the experiment was the investigation of cold air outbreaks from the surrounding Arctic ice sheets. During such weather episodes the air mass coming from the ice is rapidly modified over the water due to the contrasts in temperature, heat conduction, humidity and roughness between ice and water. This leads to the formation of a "new" boundary layer. Its depth, mean temperature and moisture increases with increasing distance from the ice edge mainly due to sensible and latent heat supply from the ocean.


The investigations of cold air outbreaks and Arctic stratus by scientists of the Collaborative Research Centre 318 began already three years before with the field experiment ARKTIS 1988 which took place in the area west of Spitsbergen in May 1988. ARKTIS 1991 is a continuation of this work under winterly weather conditions. ARKTIS 1991 was followed by the experiment ARKTIS 1993.


As in ARKTIS 1988 the research vessel Valdivia and the two research aircraft FALCON-20 of the DLR at Oberpfaffenhofen and DO-128 of the TU Braunschweig were at our disposal. Radiosonde measurements were performed on board of RV Valdivia and on Bear Island.

Identification

Data identification

Citation

Alternate title

ARKTIS 1991 - Cellular Convection over the Norwegian Sea
Date (Creation)
2011-06-22
Citation identifier
None
Citation identifier
doi:10.1594/WDCC/UNI_HH_MI_ARKTIS1991 / ARKTIS 1991 - Cellular Convection over the Norwegian Sea: radiosoundings at the research vessel Valdivia and station Bear Island
Originator
  University of Hamburg (MI) - Dr. Gerd Müller
http://www.mi.uni-hamburg.de/
Other citation details

doi:10.1594/WDCC/UNI_HH_MI_ARKTIS1991
Author
  Max-Planck-Institut fuer Meteorologie - Gottfried Kruspe
http://www.mpimet.mpg.de/
Author
  University of Hamburg (MI) - Prof. Dr. Burghard Brümmer
http://www.mi.uni-hamburg.de/
Author
  University of Hamburg (MI) - Dr. Gerd Müller
http://www.mi.uni-hamburg.de/
Author
  University of Hamburg (MI) - Christian Wetzel
http://www.mi.uni-hamburg.de/
Principal investigator
  University of Hamburg (MI) - Prof. Dr. Burghard Brümmer
http://www.mi.uni-hamburg.de/
Point of contact
  University of Hamburg (MI) - Dr. Gerd Müller
http://www.mi.uni-hamburg.de/
Theme

  • observational data
Theme

  • radiosonde
Theme

  • ship
Theme

  • buoy
Theme

  • arctic
Theme

  • ice
Language
English

Extent

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Begin date
1991-02-17
End date
1991-03-15
Begin date
1991-02-21
End date
1991-03-14
 

Distribution

Distribution

Distribution format
  • tar-File(s) ( tar-File(s) )

Distributor

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Digital transfer options

Units of distribution

Mb
Transfer size
5
OnLine resource
http://doi.org/doi:10.1594/WDCC/UNI_HH_MI_ARKTIS1991
 

Quality

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Series
 

Content

Coverage Description

Attribute description
air_pressure
Content type
modelResult
Descriptor

hPa

Coverage Description

Attribute description
air_pressure
Content type
modelResult
Descriptor

hPa

Coverage Description

Attribute description
air_temperature
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modelResult
Descriptor

not filled

Coverage Description

Attribute description
air_temperature
Content type
modelResult
Descriptor

not filled

Coverage Description

Attribute description
dew_point_temperature
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modelResult
Descriptor

not filled

Coverage Description

Attribute description
dew_point_temperature
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modelResult
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not filled

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height
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modelResult
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m

Coverage Description

Attribute description
height
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modelResult
Descriptor

m

Coverage Description

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relative_humidity
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modelResult
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not filled

Coverage Description

Attribute description
relative_humidity
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modelResult
Descriptor

not filled

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Attribute description
specific_humidity
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modelResult
Descriptor

g kg-1

Coverage Description

Attribute description
specific_humidity
Content type
modelResult
Descriptor

g kg-1

Coverage Description

Attribute description
wind_from_direction
Content type
modelResult
Descriptor

degree

Coverage Description

Attribute description
wind_from_direction
Content type
modelResult
Descriptor

degree

Coverage Description

Attribute description
wind_speed
Content type
modelResult
Descriptor

m s-1

Coverage Description

Attribute description
wind_speed
Content type
modelResult
Descriptor

m s-1
 

Overviews

Spatial extent

N
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Keywords

arctic buoy ice observational data radiosonde ship

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