Particle fluxes across three surface types for the expedition ARTofMELT, Arctic Ocean, 2023

Theresa Mathes, Andreas Held

During the ARTofMELT Arctic Ocean expedition in spring 2023, turbulent particle fluxes were continuously measured aboard the icebreaker Oden in order to investigate the spatial and temporal variability of particle sources and sinks across three different surface types.

Between 10 May and 12 June, turbulent fluxes were measured using a uSonic-3 sonic anemometer and a 20 Hz mixing-type condensation particle counter (MCPC 1720), with the inlet mounted next to the anemometer on the foremast at a height of 20.3 metres. Additional supporting data included particle number size distributions, meteorological data and automated, ship-based camera images for surface type classification. Surface conditions were categorised as closed ice, narrow leads or open water based on hourly images.

Two stationary ice camps, located at 79.6° N, 1.3° W and 79.8° N, 2.8° E, as well as measurements collected while drifting or transiting, provided spatial coverage between 78° N and 81° N, and 4° W and 6° E. All data were pre-processed using motion correction, inlet-loss correction, time lag determination, and ship exhaust pollution filtering. Turbulent particle fluxes were then calculated using standard eddy covariance methods with a 20-minute averaging interval. This dataset provides a comprehensive record of turbulent particle fluxes, concentrations of particles, and surface conditions in the central Arctic during the early melt season.

AtmosphereAerosolsArcticArctic OceanAerosolParticlesFluxParticle fluxARTofMELTARTofMELT 2023 expeditionIcebreaker Oden

Name

Version

Citation

Data description

The dataset is provided as tab-limited text and contains the following parameters:

• Date/Time
• Latitude
• Longitude
• Closed ice (%)
• Leads (%)
• Open water (%)
• Qh Heat, flux, sensible (W/m²)
• PF Particle, flux (10⁶ #/m²/s)
• CP_conc Particle number (#/cm³)
• Ts Sonic temperature (K)
• ff Wind speed (m/s)
• RelWindDir Wind direction, relative (deg)
• u* Friction velocity (m/s)
• z/L Obukhov stability parameter
• Depos vel Deposition velocity (cm/s)

Project

ARtofMELT 2023 expedition

Publisher

Pangaea

License

Creative Commons Attribution 4.0 International License (CC BY 4.0)

First name

Theresa

Last name or organisation

Mathes

Email address

mathes@tropos.de

Address

Leibniz Institute for Tropospheric Research e.V. (TROPOS)

Postal code

04318

City

Leipzig

Country

Germany

GCMD science keyword

Earth science > Atmosphere > Aerosols

GCMD location

Ocean > Arctic Ocean

Dataset language

English

Begin date

2023-05-10

End date

2023-06-12

Time