Present weather sensor visibility and precipitation data from the Arctic Ocean 2018 expedition
John Prytherch
Measurements of visibility, precipitation type and intensity, and the corresponding the World Meteorological Organization (WMO) weather codes.
The dataset provides rare high quality meteorological observations from sea-ice regions of the Arctic Ocean. They enable analysis of meteorological conditions and provide context for other measurements and analysis associated with the expedition.
The measurements are from the present weather sensor operating on Icebreaker Oden’s 7th deck at 25 m above sea level during the Arctic Ocean 2018 (AO2018, also referred to as MOCCHA-ACAS-ICE) expedition to the central Arctic Ocean in August and September 2018.
AtmosphereWeather observationsVisibilityPrecipitation typePrecipitation intensityArctic Ocean 2018AO2018AO18MeteorologyArctic boundary layerArctic cloudsHigh ArcticACAS
Download dataName
Version
Citation
Data description
Data from the MISU Vaisala PWD22 present weather sensor, averaged over either 1 or 30-minute intervals. Three data formats are available: Matlab (.mat), NetCDF (.nc) and comma separated value (.csv) text, with an accompanying readme (.rtf) file.
Comments
Visibility, up to a maximum range of 20km, air temperature and precipitation type and intensity determined by the Vaisala PWD22 present weather sensor installed above Oden’s bridge on the 7th deck, at a height of 27m above sea level. The system was operated as part of the Stockholm University ACAS project. The system additionally reports instantaneous, 15-minute and 60-minute WMO present weather codes.
Until 2018-08-13 20:10, the sensor was set to only report visibility. After this date, the full set of measurements were reported.
Data from the system are combined into a cruise-length file. The data are time-averaged to both 1-minute and 30-minute intervals, to correspond with the micrometeorological averaging periods used for the mast sensors.
Project
Arctic Ocean 2018. These data are part of the Arctic Climate Across Scales (ACAS) project, funded by the Knut and Alice Wallenberg Foundation. Project PI Michael Tjernström (MISU).
Publisher
Bolin Centre for Climate Research, Stockholm University
First name
John
Last name or organisation
Prytherch
Email address
Address
Department of Meteorology (MISU); Stockholm University
Postal code
SE-106 91
City
Stockholm
Country
Sweden
GCMD science keyword
Earth science > Atmosphere
GCMD location
Ocean > Arctic Ocean
Dataset language
English
Begin date
2018-07-31
End date
2018-10-05