My GeoNetwork catalogue
ALKOR 2000 - Three RV Alkor cruises to the central Baltic Sea 2000: radiosoundings at the research vessel Alkor
The field experiments ALKOR 2000 (consisting of three cruises: ALKOR 4/2000, 6/2000, 10/2000) and ALKOR 2001 (4/2001, 6/2001, 10/2001) took place in the central Baltic Sea. The six cruises of the German Research Vessel Alkor with duration of about seven days each led to a point of the Baltic Sea which is most remote from the adjacent lands and additionally a grid point of regional climate model REMO. The ALKOR experiments as well as BASIS 1998 and BASIS 2001 are part of the research compound BALTIMOS (BALTic sea Integrated MOdel System). BALTIMOS in turn is part of the Baltic Sea Experiment (BALTEX).
The overall objective of all eight field experiments (ALKOR and BASIS) was to collect a comprehensive data set suited to validate the coupled model system BALTIMOS for the Baltic Sea region. The observations mainly focus on:
- the atmospheric boundary layer structure and processes and the air-sea-ice interaction over areas with inhomogeneous sea ice cover
- the atmospheric boundary layer structure over open water under different synoptic conditions such as cold-air advection, warm-air advection or frontal passages.
In addition to the published datasets several other measurements were performed during the experiment. Corresonding datasets will be published in the near future and are available on request.
Details about all used platforms and sensors and all performed measurements are listed in the fieldreport.
The following datasets are available on request: ground data at RV Alkor
Simple
- Date (Publication)
- 2012-03-26
- Edition
-
1
- Citation identifier
- UNI_HH_MI_ALKOR2000
- Citation identifier
- doi:10.1594/WDCC/UNI_HH_MI_ALKOR2000
http://www.mi.uni-hamburg.de/
- Name
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tar-File(s)
- Keywords
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Baltic Sea
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- Keywords
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observational data
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- Keywords
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radiosonde
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- Keywords
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ship
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- Use limitation
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scientific use: For scientific use only
- Language
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eng; USA
))
- Begin date
- 2000-04-05
- End date
- 2000-10-31
- Distribution format
-
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tar-File(s)
()
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tar-File(s)
()
- Transfer size
- 11
- OnLine resource
- https://www.wdc-climate.de/ui/entry?acronym=UNI_HH_MI_ALKOR2000
- Hierarchy level
- collection
Completeness commission
- Name of measure
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n/a
- Measure description
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None
Non quantitative attribute accuracy
- Name of measure
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n/a
- Measure description
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None
- Attribute description
- relative_humidity
- Descriptor
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relative_humidity [CF-Standard Name]; unit: not filled
- Attribute description
- specific_humidity
- Descriptor
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"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: g kg-1
- Attribute description
- air_pressure
- Descriptor
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air_pressure [CF-Standard Name]; unit: hPa
- Attribute description
- air_temperature
- Descriptor
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Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: not filled
- Attribute description
- height
- Descriptor
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Height is the vertical distance above the surface. [CF-Standard Name]; unit: m
- Attribute description
- wind_speed
- Descriptor
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Speed is the magnitude of velocity. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity.[CF-Standard Name]; unit: m s-1
- Attribute description
- dew_point_temperature
- Descriptor
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Dew point temperature is the temperature at which a parcel of air reaches saturation upon being cooled at constant pressure and specific humidity. [CF-Standard Name]; unit: not filled
- Attribute description
- wind_from_direction
- Descriptor
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Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) In meteorological reports, the direction of the wind vector is usually (but not always) given as the direction from which it is blowing (wind_from_direction) (westerly, northerly, etc.). In other contexts, such as atmospheric modelling, it is often natural to give the direction in the usual manner of vectors as the heading or the direction to which it is blowing (wind_to_direction) (eastward, southward, etc.) "from_direction" is used in the construction X_from_direction and indicates the direction from which the velocity vector of X is coming. [CF-Standard Name]; unit: degree
- File identifier
- wdc-climate.de:2250973 XML
- Metadata language
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eng; USA
- Hierarchy level
- collection
- Hierarchy level name
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UNI_HH_MI_ALKOR2000
- Date stamp
- 2011-06-22T14:50:47
- Metadata standard name
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ISO 19115
- Metadata standard version
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ISO 19115-2:2009
Overviews
Spatial extent
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