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Mathes, Theresa; Held, Andreas (2025): Particle flux-gradient relationships for the expedition ARTofMELT, Arctic Ocean, 2023 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974992 (DOI registration in progress)

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Published: 2025-04-01

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Abstract:
In spring 2023, near-surface particle and heat fluxes were measured using the gradient method during the ARTofMELT Arctic Ocean Expedition aboard the icebreaker Oden. The gradient system was used to measure the number of particles, temperature and wind speed at five different heights close to the surface. We divided the surface conditions into three categories: open water, open lead and closed ice. To measure the concentration of particles near the surface, we used a 1.50 m high linear actuator with a sensor board. The sensor board included a temperature sensor, a heat wire anemometer, an inlet connected to a condensation particle counter (CPC) and a distance sensor. The gradient system was set up to approach six different height levels in sequence. The distance to the surface from the inlet varied depending on the height level, with measurements taken at 5 cm, 10 cm, 17 cm, 32 cm, 67 cm and 129 cm. We calculated the sensible heat flux (HF) and the particle flux (PF) based on the flux-gradient relationships method. Monte Carlo simulation was utilized to estimate the uncertainty of the flux estimate due to the error of the measuring instruments.
Keyword(s):
aerosol flux; Arctic aerosol; ARTofMELT2023; fluxes; icebreaker oden; particle fluxes; particle number concentration; Particle source area; sensible heat flux
Documentation:
Readme: Particle flux-gradient relationships for the expedition ARTofMELT, Arctic Ocean, 2023
Project(s):
Atmospheric rivers and the onset of sea ice melt 2023 (ARTofMELT)
Funding:
German Research Foundation (DFG), grant/award no. 495992836: Vertical Turbulent Aerosol Particle Transport above open Water and Ice in the central Arctic during Summertime (APAICA) - Aerosol particle sources and transformation in the Arctic marine boundary layer
German Research Foundation (DFG), grant/award no. 521926906: Turbulent Aerosol Fluxes in the central Arctic during the ARTofMELT expedition
Coverage:
Median Latitude: 80.000901 * Median Longitude: 1.998021 * South-bound Latitude: 79.444569 * West-bound Longitude: -1.918209 * North-bound Latitude: 80.466461 * East-bound Longitude: 4.958374
Date/Time Start: 2023-05-17T13:46:39 * Date/Time End: 2023-06-10T05:43:44
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets

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Datasets listed in this bundled publication

  1. Mathes, T; Held, A (2025): Gradient system processed data from the expedition ARTofMELT, Arctic Ocean, 2023. https://doi.pangaea.de/10.1594/PANGAEA.974993
  2. Mathes, T; Held, A (2025): Particle flux data from the expedition ARTofMELT, Arctic Ocean, 2023. https://doi.pangaea.de/10.1594/PANGAEA.975228