This dataset supports the thesis entitled 'The Fate and Transport of Microplastics within Estuaries' AWARDED BY: Univeristy of Southampton DATE OF AWARD: 2021 DESCRIPTION OF THE DATA This dataset contains: Data obtained as per Stead, 2021, Chapter 5. ADV (velocity) data, OBS data and calibrated SSC data for each experimental variation. All data is in 20 second averages. Data are divided into files by substrate type. Calibrations for SSC are available in Appendix C, Stead, 2021 Date of data collection: 04/2019 for clay substrates, 08/2019 for sand substrates. PhD Studentship funded through a Leverhulme Understanding Maritime Futures Doctoral Scholarship with additional funding from the Graduate School, NOCS. Licence: CC-BY 4.0 Date that the file was created: 07/2021