Aerosol and droplet size distributions and concentrations measured during the Arctic Ocean 2018 expedition
Ian Brooks, Barbara Brooks, Peggy Achtert
Aerosol and droplet size distributions and concentrations were measured by a Forward Scattering Spectrometer Probe (model FSSP-100). The FSSP was installed on the roof of the 'triple-lab' container on deck 4 of the icebreaker Oden. It was mounted on an actively rotator which kept the FSSP pointed into the wind. The FSSP is aspirated and the sample volume corrected for the impact of ambient wind speed on the sample flow rate.
The primary purpose of this data is to measure the droplet size distribution during fog events, but large aerosol particles are also measured during fog free periods.
Failure of the anti-icing heating resulted in ice build-up intermittently blocking the laser path, resulting in gaps in the time series. The laser failed before the end of the project. Data is available from August 1 2018 through September 6 2018. This covers transit of the Oden into the ice and most of the ice-drift period near the North Pole.
AtmosphereAerosolsAerosolsFogDropletsMeteorologyArctic OceanAO2018MOCCHAIcebreaker Oden
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Data description
Separate daily files (netCDF) of total number concentration and particle size distributions on a 1-minute time base (averaged from 1-second raw measurements).
- Concentration files are ~170 kB (33 files)
- Size distribution files are 2.5 MB (33 files)
- Files include basic navigation data for each sample (time, latitude, longitude, ship heading, etc.)
Comments
Instrumentation operated by Ian Brooks and Peggy Achtert (School of Earth and Environment, University of Leeds, UK). Data processing by Barbara Brooks (National Centre for Atmospheric Science, Leeds, UK).
Acknowledgement of University of Leeds as the data provider is required whenever and wherever these data are used.
Logging and processing software (Fssp-logger) is available at GitHub.
Data were collected during the Arctic Ocean 2018 expedition on board the Swedish icebreaker (I/B) Oden, which was organized by the Swedish Polar Research Secretariat.
Project
Arctic Ocean 2018. Measurements funded by the UK Natural Environment Research Council (grant No. NE/R009686/1). These data are part of the Arctic Climate Across Scales (ACAS) project, funded by the Knut and Alice Wallenberg Foundation. Project PI Michael Tjernström, Department of Meteorology, Stockholm University (MISU). The project was also partly funded by the Bolin Centre for Climate Research.
Publisher
Bolin Centre Database
First name
Ian
Last name or organisation
Brooks
Email address
Address
School of Earth and Environment; University of Leeds
Postal code
LS2 9JT
City
Leeds
Country
UK
GCMD science keyword
Earth science > Atmosphere > Aerosols > Aerosol forward scatter
GCMD location
Ocean > Arctic Ocean
Dataset language
English
Begin date
2018-08-01
End date
2018-09-06