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Preprints
https://doi.org/10.5194/essd-2020-86
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-86
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  28 May 2020

28 May 2020

Review status
A revised version of this preprint was accepted for the journal ESSD and is expected to appear here in due course.

Surface and subsurface characterisation of salt pans expressing polygonal patterns

Jana Lasser1,2, Joanna M. Nield3, and Lucas Goehring4 Jana Lasser et al.
  • 1Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, 37077 Göttingen, Germany
  • 2Complexity Science Hub Vienna, Josefstädterstrasse 39, 1080 Wien
  • 3Geography and Environmental Science, University of Southampton, Highfield, Southampton SO17 1BJ, UK
  • 4School of Science and Technology, Nottingham Trent University, Nottingham NG11 8NS, UK

Abstract. The data set described here contains information about the surface, subsurface and environmental conditions of salt pans that express polygonal patterns in their surface salt crust. Information stems from 5 field sites at Badwater Basin and 21 field sites at Owens Lake – both in central California. All data was recorded during two field campaigns, from between November and December, 2016, and in January 2018. Crust surfaces, including the mean diameter and fluctuations in the height of the polygonal patterns, were characterised by terrestrial laser scanner (Nield et al., 2020b), DOI 10.1594/PANGAEA.911233. The data contains the resulting three dimensional point clouds, which describe these surfaces. The subsurface is characterised by grain size distributions of samples taken from depths between 5 cm and 100 cm below the salt crust, and measured with a laser particle size analyser (Lasser and Goehring, 2020b), DOI 10.1594/PANGAEA.910996. Subsurface salinity profiles were recorded and the ground water density was also measured (Lasser and Goehring, 2020a), DOI 10.1594/PANGAEA.911059. Additionally, the salts present in the crust and pore water were analysed to determine their composition (Lasser and Karius, 2020), DOI 10.1594/PANGAEA.911239. To characterise the environmental conditions at Owens Lake, including the differences between nearby crust features, records were made of the temperature and relative humidity during one week in November 2016 (Nield et al., 2020a), DOI 10.1594/PANGAEA.911139. The field sites are characterised by images (Lasser et al., 2020), DOI 10.1594/PANGAEA.911054, showing the general context of each site, such as pictures of selected salt polygons, including any which were sampled, a typical core from each site at which core samples were taken and close-ups of the salt crust morphology. Finally, two videos of salt crust growth over the course of spring 2018 and reconstructed from time-lapse images are included (Lasser et al., 2020), DOI 10.1594/PANGAEA.911054.

Jana Lasser et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Jana Lasser et al.

Data sets

Temperature and humidity time-series from Owens Lake, central California, measured during one week in November 2016 J. Lasser, J. M. Nield, and L. Goehring https://doi.org/10.1594/PANGAEA.911139

TLS surface scans from Owens Lake and Badwater Basin, central California, measured in 2016 and 2018 J. Lasser, J. M. Nield, and L. Goehring https://doi.org/10.1594/PANGAEA.911233

Subsurface salt concentration profiles and pore water density measurements from Owens Lake, central California, measured in 2018 J. Lasser, J. M. Nield, and L. Goehring https://doi.org/10.1594/PANGAEA.911059

Images and Videos from Owens Lake and Badwater Basin in central California, taken in 2016 and 2018 J. Lasser, J. M. Nield, and L. Goehring https://doi.org/10.1594/PANGAEA.911054

Grain size distributions of sand samples from Owens Lake and Badwater Basin in central California, collected in 2016 and 2018 J. Lasser and L. Goehring https://doi.org/10.1594/PANGAEA.910996

Chemical characterization of salt samples from Owens Lake and Badwater Basin, central California, collected in 2016 and 2018 J. Lasser and V. Karius https://doi.org/10.1594/PANGAEA.911239

Jana Lasser et al.

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Latest update: 29 Sep 2020
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Short summary
The publication presents six data sets that describe the surface and subsurface characteristics of salt deserts in southern California. The data was collected during two field studies in 2016 and 2018 and is is used to investigate the origins of the eye-catching hexagonal salt ridge patterns that emerge in such deserts. It is important to understand how these salt crusts grow, since these deserts and their dynamic surface structure play a major role in the emission of dust into the atmosphere.
The publication presents six data sets that describe the surface and subsurface characteristics...
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