DOI: 10.5281/zenodo.15112651
title: Data presented in Meyer et al. 2025 "From fine to giant: Multi-instrument assessment of the dust particle size distribution at an emission source during the J-WADI field campaign"

description: This dataset comprises several NetCDF files containing processed meteorological, dust, and saltation data from the J-WADI field campaign used in Meyer et al. (2025). Data were collected from multiple instruments and processed into several products, including corrected and uncorrected mass concentrations from several instruments for selected time steps, optical to geometric diameter conversions, scanning electron microscopy (SEM) measurements, and dust mass concentrations from combining size distributions from several instruments. Files and Contents:



J-WADI_uncorrected_mass_concentrations_single_instruments_15_min.nc: 15-min averaged uncorrected mass concentration PSDs for three time steps. Instruments include UCASS (A, B), SANTRI2 (2U, 4U), Welas (4m, 2m), CDA (4m) and Fidas (4m, 2m).

J-WADI_corrected_mass_concentrations_single_instruments_triaxial_15_min.nc:15-min averaged corrected mass concentration particle size distributions (PSDs) derived for triaxial ellipsoid particle assumptions for geometric diameters. Instruments include SANTRI2 (2U, 4U), Welas (4m, 2m), and Fidas (4m, 2m).

J-WADI_corrected_mass_concentrations_single_instruments_biaxial_15_min.nc: 15-min averaged corrected mass concentration PSD data derived for biaxial ellipsoid particle assumptions for geometric diameters. Instruments include SANTRI2 (2U, 4U), Welas (4m, 2m), and Fidas (4m, 2m).

conversion_optical_geometric_diameter_Fidas_Welas_CDA.nc: 15-min averaged optical to geometric diameter conversion for Fidas, Welas, and CDA instruments.J-WADI_SEM_size_distributions.nc: particle size distributions collected by a flate-plate sampler and analyzed by SEM converted to geometric diameters.

J-WADI_meteorology_dust_mass_concentrations_15min.nc: 15‑minute averaged meteorological data (pressure, temperature, relative humidity, wind speed and direction, friction velocity, and stability) and dust mass concentration measurements from combining corrected aerosol spectrometer measurements for biaxial ellipsoid particle assumptions for geometric diameters (SANTRI2 (2U, 4U), Welas (4m, 2m), and Fidas (4m, 2m).).

J-WADI_SANTRI_flux_den_15min.nc: 15-min averaged height-dependent (5 cm, 15 cm, 30 cm) saltation fluxes from SANTRI measurements.


Acknowledgements:J-WADI was funded through the Helmholtz Association's Initiative and Networking Fund (grant no. VH-NG-1533) and the European Research Council under the Horizon 2020 research and innovation programme through the ERC Consolidator Grant FRAGMENT (grant no. 773051). Data processing:SANTRI data were processed by Martina Klose (martina.klose@kit.edu), SEM data by Konrad Kandler (kandler@geo.tu-darmstadt.de), optical to geometric conversion by by Jeronimo Escribano (jeronimo.escribano@bsc.es), and the rest by Hannah Meyer (hannah.meyer@kit.edu).

Citation:If you use these data, please cite Meyer et al. (2025). Should these data form the central component of a publication, co-authorship may be offered. For further details, please contact Martina Klose (martina.klose@kit.edu).