Revision history for U.S. Geological Survey data release:

Over, J.R., Sherwood, C.R., Traykovski, P.A., and Marsjanik, E., 2021, Topographic and bathymetric data, sediment samples, structure from motion imagery, and reference mark data collected at Marconi Beach, Wellfleet in winter 2021, U.S Geological Survey Field Activity 2021-022-FA (ver. 2.0, December 2023): U.S Geological Survey data release, https://doi.org/10.5066/P9POZ9VH.

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Version 1.0 posted onlin November 9, 2021
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Revised and reposted January 11, 2022 as version 1.1
Revised and reposted April 5, 2023 as version 1.2
Revised and reposted December 15, 2023 as version 2.0
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Changes in version 1.1:

1) Modified the digital surface model filename to replace 'topography' with 'DSM' making the file 2021022FA_Marconi_DSM_25cm.tif to match other references in the data release. 
2) Modified the download link in the metadata to the use the new filename.

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Changes in version 1.2:
1) The DSM file (2021022FA_Marconi_DSM_25cm.tif) was found to be corrupt and replaced with a working version of the file.
2) The metadata was updated to reflect the changes.

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Changes in version 2.0:

1. Grain size data were reprocessed, reviewed, and returned to affected WHCMSC Sediment Lab customers in September 2023 as part of a corrective action taken after an issue was identified in the data processing workbook (version 1.0) used to calculate grain size statistics and phi class distributions from raw data obtained from the Sed Lab's Horiba LA-960 laser diffraction unit. Workbook version 2.1 was used to reprocess the data. For detailed information, please refer to the metadata for this data release.

Earlier versions available by contacting whsc_data_contact@usgs.gov