ee577b07-1a2c-4541-bf30-e2ea048e15e1 English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:25:48 UK GEMINI 2.3 OSGB 1936 / British National Grid UV absorbance of suspended sediments measured in a laboratory using a submersible spectrophotometer 2025-04-28 publication https://catalogue.ceh.ac.uk/id/ee577b07-1a2c-4541-bf30-e2ea048e15e1 10.5285/ee577b07-1a2c-4541-bf30-e2ea048e15e1 doi: Mignanelli, L., Khamis, K., Bradley, C., Sambrook-Smith, G. (2025). UV absorbance of suspended sediments measured in a laboratory using a submersible spectrophotometer. NERC EDS Environmental Information Data Centre 10.5285/ee577b07-1a2c-4541-bf30-e2ea048e15e1 This dataset contains information about submersible absorbance sensor responses to varying suspended sediment concentration, grain size and organic content. Laboratory tests were conducted at the University of Birmingham, UK, during 2023 as part of a wider study developing methods for urban storm flow characterization. Two sediment types were assessed along with three size fractions across concentration ranges from 0 mg/L to 5000 mg/L. Absorbance was recorded at key wavelengths between 190 – 360 nm and particle size distribution and organic content (loss on ignition) measured for each sediment type and size fraction. The work was supported by the Natural Environment Research Council (Grant NE/X011178/1). Full details about this dataset can be found at https://doi.org/10.5285/ee577b07-1a2c-4541-bf30-e2ea048e15e1 Kieran Khamis University of Birmingham k.khamis@bham.ac.uk pointOfContact Mignanelli, L. University of Birmingham l.mignanelli@bham.ac.uk author Khamis, K. University of Birmingham k.khamis@bham.ac.uk author Bradley, C. University of Birmingham c.bradley@bham.ac.uk author Sambrook-Smith, G. University of Birmingham g.smith.4@bham.ac.uk author Khamis, K. University of Birmingham EMAIL NOT PROVIDED owner NERC EDS Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Water quality Suspended sediment Optical sensors otherRestrictions no limitations otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions If you reuse this data, you should cite: Mignanelli, L., Khamis, K., Bradley, C., Sambrook-Smith, G. (2025). UV absorbance of suspended sediments measured in a laboratory using a submersible spectrophotometer. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/ee577b07-1a2c-4541-bf30-e2ea048e15e1 textTable English utf8 inlandWaters 2023-02-01 2023-08-31 -2.092 -1.733 52.386 52.545 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/ee577b07-1a2c-4541-bf30-e2ea048e15e1 Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/ee577b07-1a2c-4541-bf30-e2ea048e15e1.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Measurements were taken using a commercially available absorbance sensor, Trios Opus (TriOS GmbH, Germany) at 1 minute intervals. Sediments were sieved into size fractions and particle size was quantified using a Malvern Mastersizer 2000 (Malvern, UK) and organic content was assessed using the Loss on Ignition method. The experimental setup consisted of a 5 L beaker filled with 4 L of deionized water, a large stirrer set to a constant rpm, and an opaque surround to minimize interference from ambient light on sensor measurements. The sensor was placed in the centre of the beaker, ~5 cm above the stirrer blade. To verify uniform mixing, subsamples were taken directly beside the optical window of the sensor and at two other locations within the beaker. These subsamples were analysed using a commercial handheld turbidimeter (Sper Scientific Portable Turbidity Meter 860040) at predefined calibration points to confirm consistent turbidity. Turbidity readings were stable and comparable across all sample positions at each calibration point. Each measurement cycle consisted of 15 calibration points spanning SSC concentrations from 0 to 5000 mg/L. During calibration, sensors recorded data continuously for 20 minutes, and once measurements had stabilized, 10 readings were randomly selected for further analysis. All absorbance data were recorded by the TriOS Opus sensor and exported in CSV format, LOI data (weight measurements) were initially recorded on paper, then transferred into an Excel spreadsheet and particle size data from the Mastersizer were exported as CSV files and imported into statistical software for analysis. Records were screened for any missing or null values and data points were checked to ensure they fell within expected ranges (e.g. in case of data entry errors).