cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5285/519d42bf-51cc-42a4-8673-5f2044cfa19a
title: Marine invasive alien species monitoring data from Akrotiri and Dhekelia, Cyprus, February 2017 to September 2018

description: Marine fish, algae and invertebrate invasive alien species (IAS) data from Akrotiri and Dhekelia, Cyprus. Data were collected during an 19-month monitoring period starting in February 2017 and ending in September 2018. Sampling occurred seasonally, approximately once every 3 months, and used an underwater visual census (UVC) method. The UVC involved divers swimming at a steady pace along three 25m transects, with each transect separated by a 5m gap. The transects were randomly placed, covering a variety of habitats such as seagrass beds and rocky habitats where possible. Fish species were recorded and abundance estimated within 2.5m on each side of the transect. Benthic species (algae and invertebrates) were recorded from quadrats placed every 1m along each 25m transect. Sampling carried out by the University of Cyprus and volunteer divers from the Western Sovereign Base Area Sub Aqua Club as part of a Defra Darwin Initiative Plus project to ascertain baseline data on native and non-native marine species in the Sovereign Base Area of Akrotiri.
description: Quality control/assurance was achieved by all equipment and protocols being sourced and developed by experienced University of Cyprus staff members who also trained the volunteer divers. All incoming data were reviewed and digitised by the university staff members.
DOI: 10.5285/a715112e-08ae-4d6e-943a-77933fd5ddd1
title: Evaluation of national scale, long-distance connectivity (and its protection) in England’s priority habitat inventory - 2015 dataset

description: The results of an analysis of the connectivity of sixteen priority habitat networks in England using the Condatis methodology. The dataset includes conductance scores for each of the priority habitat networks (an overall assessment of how connected the habitat network is), the flow scores for each contiguous habitat patch within each of the habitat networks (the importance of that patch to connectivity), as well as details of protection. Additionally, the dataset includes data and scripts needed to run a demonstration Condatis analysis, and produced the figures used in Travers et al., 2021 (in prep.).

Dispersal distances of 2, 4 and 8 km were used as inputs into Condatis. The outputs of connectivity assessments using those dispersal figures were geometrically averaged to provide results summing up the connectedness of a habitat network over a range of dispersal abilities. To determine how much connectivity (flow), and which patches were protected in each habitat network they were overlaid with SSSI and NNR spatial data. If more than 50% of a patch’s area was covered by a protected area it was determined to be protected.
description: The priority habitat inventory, SSSI and NNR data were downloaded from the Natural England geoportal. Connectivity analysis was conducted with the Condatis method, using dispersal distances of 2, 4 and 8km, the outputs of which were then geometrically averaged. Habitat patches were deemed to be protected if >50% of their area was covered by a SSSI or NNR. Results determined to have arisen due to arithmetic underflow were removed from the analysis prior to summary steps.
DOI: 10.5285/bd33173b-025f-4c50-aa15-0b853d4774bc
title: Plynlimon research catchment hydrochemistry (2023-2024)

description: This dataset includes stream and rainfall hydrochemistry of the Plynlimon (Pumlumon in Welsh) research catchments in Mid Wales. The data cover the period from March 2023 to March 2024. Sampling was carried out every four weeks by a team of researchers from UK Centre for Ecology & Hydrology. Stream samples were taken using a grab technique and filtered in the field. Rain samples were collected using bulk precipitation collectors. Data are presented for major anions and cations, pH, conductivity, alkalinity and in-situ measurements for the water temperature and stream flow for the six stream locations and air temperature and volume for the rainfall sites.
description: This data presented follow on from the hydrochemical data sets presented in the data series Plynlimon Hydrochemistry data. The Plynlimon research catchments lie within the headwaters of the River Severn and the River Wye in the uplands of mid-Wales. Intensive and long-term monitoring within the catchments underpins a wealth of hydrological and hydro-chemical research. Monitoring is funded by the UK Centre for Ecology & Hydrology, and is ongoing since 1968.

Fieldwork was carried out by UKCEH members of staff trained in the fieldwork techniques required. Chemical analysis was carried out by qualified UKCEH chemists at laboratories at UKCEH Lancaster and UKCEH Bangor. Data was being checked and added to an Access database before being extracted to csv and uploaded to EIDC.
DOI: 10.5285/65ecd65f-e518-4cf5-85bf-7d93e66fdb96
title: Vegetation change at Whim peatbog (2002-2016)

description: The data consist of observations of cover of plant species in permanent quadrats in a nitrogen deposition experiment on a peat bog.  The experiment was located at Whim Moss in central Scotland, between 2002 and 2016.  Recording of cover was by visual assessment in 40 x 40 cm quadrats.  The experiment was designed to look at the change in vegetation composition with different rates of deposition of nitrogen in different forms (ammonia, ammonium, and nitrate).

This work was supported by the Natural Environment Research Council award number NE/R016429/1 as part of the UK-SCAPE programme delivering National Capability.
description: Data were collected by recording cover of all species occurring in permanent quadrats.
The location of the quadrats was marked with canes.
Cover recording was done by subjective visual assessment.
Values are expressed as percentages of the ground area of the quadrat covered by that species.
Data were recorded on paper in the field, and later transcribed to Excel spreadsheets.
The Excel spreadsheets were processed by an R script, which corrected naming errors, and averaged values for the 16 10x10 cm sub-squares to give the 40x40 cm quadrat mean.
There are some instance of unreliable data, where implausibly large changes occur from within a few years.  This is likely to come from changes in quadrat position, or human error in identifying and recording the species.
The data were mainly collected by Lucy Sheppard and Ian Leith, and latterly by Netty van Dijk and co-workers.
DOI: 10.5285/d3daab67-dc02-43a0-82c0-afff709c43f4
title: Operational telemetry data of a community-scale decentralized point-of-use drinking water treatment system, Bristol, UK, November 2019-September 2022

description: This dataset comprises operational data for a point-of-use drinking water treatment system (POU DWTS) located on the University of the West of England’s Frenchay campus. This dataset covers 34 months (November 2019 to September 2022). The POU DWTS was continuously operational throughout this period with parameters presented in this dataset including oxidation reduction potential, free available chlorine, flow rate, discharge pressure, filtration flux, ultrafiltration membrane permeability. Telemetry data is collected over a 5-minute period provide a rolling 5-minute average and is available in a .csv format. 
description: Operational telemetry data of the point-of-use drinking water treatment system was recorded through in-line sensors and probes and uploaded to a Grundfos Remote Manager interface. All operational data was collected over a 5-minute period to provide a rolling 5-minute average. Operational data has been presented in graphical form in an open-access publication (https://doi.org/10.1371/journal.pwat.0000187).
DOI: 10.5285/d5b78255-b834-485e-8aa4-590ddf604bfd
title: Rigg Foot topographical survey data, Sourhope field experiment site, Scotland [NERC Soil Biodiversity Programme]

description: This resource is the raw data from a topographic survey of the Sourhope field experiment site, conducted by the Department of Environmental Science, University of Stirling in April and May 2000.  The data are available to match to other data sets from the field site, or to analyse in more detail.  The data were collected as part of the NERC Soil Biodiversity Thematic Programme, centred upon the intensive study of a large field experiment located at the Macaulay Land Use Research Institute (now the James Hutton Institute)'s farm at Sourhope in the Scottish Borders (Grid reference: NT8545019630).  During this time, the site was monitored to assess changes in above ground biomass production (productivity), species composition and relative abundance (diversity). 
description: The topographic survey of the Sourhope Field Experiment Site was conducted by the Department of Environmental Science, University of Stirling on April 4th, 5th & 6th and May 11th & 12th 2000.  The survey used a Leica Geosystems Total Station EDM.  Initial processing and re-orientation was performed using LISCAD software.   Please see supporting information for further details, including that associated with any related catalogue records.
DOI: 10.5285/351e2785-5a1e-4dbb-97c1-052f1290f0be
title: Ash transport by surface runoff using a laboratory flume-based experiment

description: This dataset describes measurements of transport of ash by surface runoff using a laboratory setup (flumes). In the experiment, three inflow rates (0.25, 1 and 2 L/min) were applied to two typical ash depths found after wildfires (1 and 3 cm).

Variables measured include ash depth (cm), inflow rate (L/min), runoff rate (L/sec), ash transport rate (g/sec), ash concentration in the runoff (g/L).
description: Six flumes were filled with ash (1 and 3 cm depth) and three inflow rates (L = 0.25 L/min, M = 1 L/min and H = 2 L/min) applied consecutively to each flume for 10 min in a different order to cover the six possible combinations (L-M-H, L-H-M, M-L-H, M-H-L, H-L-M, H-M-L). Six replicates per ash depth and inflow rate combination were conducted. 

Six runoff samples containing transported ash were taken at the flumes’ outlet at specific times (0, 1.5, 3, 6, 7.5 and 9). Samples were taken in plastic bottles for 15 seconds. Samples were weighed, dried (105 oC for 48 h) and weighed again to calculate runoff volume and ash weight. Inflow rate (L/min), runoff rate (L/sec), ash transport rate (g/sec), ash concentration (g/L) were calculated using the data obtained for the samples (volume, weight and time).
DOI: 10.5285/890e4d3d-ae93-4528-8e88-bc01bae3907b
title: National Plant Monitoring Scheme survey data (2015-2017)

description: This data resource provides plot-level plant occurrence data for the first three years (2015-2017) of the National Plant Monitoring Scheme (covering the UK, the Channel Islands, and the Isle of Man). Data consist of individual observations of plants, and other habitat characteristics, at the metre-scale; observations are accompanied by percentage cover information recorded according to the Domin frequency-abundance scale commonly used in plant community ecology. Other information provided includes the plot type (size, shape, according to the NPMS classification), the volunteer-recorded NPMS habitat, the date of sampling, and information regarding the spatial location of the plot. Information contained within the metadata file should allow users to reconstruct the sampling history (including gaps) of any plot that has been sampled within the NPMS scheme between 2015 and 2017.

Please be aware that this dataset is updated annually and that more recent versions exist.
description: Data are collected directly from volunteers into a custom Indicia database system (www.indicia.org.uk) through the NPMS website (www.npms.org.uk) or app. The Indicia system is built on a PostgreSQL/PostGIS database, and the data presented here were extracted directly from this master database using appropriate SQL queries. See the associated documentation for more information on the broader Quality Assurance processes supporting the NPMS.
DOI: 10.5285/03b62fd0-41e2-4355-9a06-1697117f0717
title: Change in saltmarsh extent for six regions across Great Britain (1846-2016)

description: Data are presented showing change in saltmarsh extent along 25 estuaries/embayments in six regions across Great Britain, between 1846 and 2016. Data were captured from maps and aerial photographs. Marsh extent was delineated a scale of 1:7,500 by placing vertices every 5 m along the marsh edge. Error introduced from: (i) inaccuracies in the basemap used to georeference maps and aerial photographs; (ii) the georeferencing procedure itself; (iii) the interpreter when placing vertices on the marsh edge; and (iv) map and photo distortions that occurred prior to digitisation were calculated and used to estimate the root mean square error (RMSE) in areal extent of each marsh complex. Measures of marsh extent were only recorded if maps and aerial photographs were available for the entire estuary/embayment. Data was collected as part of a study on the large-scale, long-term trends and causes of lateral saltmarsh change. The data was used in the analysis for Ladd et al. (2019). C. Ladd and M.F. Duggan-Edwards carried out the collection and processing of the saltmarsh extent data. All authors contributed to the interpretation of the data. 

The work was carried out under the NERC programme - Carbon Storage in Intertidal Environment (C-SIDE), NERC grant reference NE/R010846/1.
description: The aerial extent change in saltmarsh extent across Great Britain came into existence by using Ordnance Survey (OS) maps and aerial photographs to delineate marsh extent for each estuary.. Marsh extent was delineated in ArcGIS 10.6 at a scale of 1:7,500 by placing vertices every 5m along the marsh edge. A Root Mean Square Error (RMSE) term (in meters) was calculated for each marsh complex by assessing error introduced by: (i) inaccuracies in the basemap used to georeference maps and aerial photographs; (ii) the georeferencing procedure itself; (iii) the interpreter when placing vertices on the marsh edge; and (iv) map and photo distortions that occurred prior to digitisation. To qualitatively assess whether the vectorised layer could be considered accurate, the most recent digitised marsh extent was compared against national marsh extent layers to ensure general agreement. Literature searches were also done to verify whether observations of significant change in marsh extent were reliable, or whether errors introduced by map surveyors on the location of the marsh edge likely explain the differences.
DOI: 10.5285/eb5d9dc4-13bb-44c7-9bf8-c5980fcf52a4
title: Potential evapotranspiration derived from the UK Climate Projections 2018 Regional Climate Model ensemble 1980-2080 (Hydro-PE UKCP18 RCM)

description: Gridded potential evapotranspiration calculated from United Kingdom Climate Projections 2018 (UKCP18) regional climate model (RCM) ensemble at 12 km resolution over the United Kingdom for the years 1980-2080 under the Representative Concentration Pathway 8.5 (RCP8.5) scenario. This dataset contains two potential evapotranspiration variables: daily total potential evapotranspiration (PET; kg m-2 d-1) and daily total potential evapotranspiration with interception correction (PETI; kg m-2 d-1). PET and PETI were calculated for each member of the UKCP18 RCM perturbed parameter ensemble. The units kg m-2 d-1 are equivalent to mm d-1. The data are provided in gridded netCDF files. There is one file for each variable, for each ensemble member, for each decade.
description: This dataset was derived from the United Kingdom Climate Projections 2018 (UKCP18) Regional Projections on a 12km grid over the UK for 1980-2080 (https://catalogue.ceda.ac.uk/uuid/589211abeb844070a95d061c8cc7f604, v20190731, v20190731), which is a twelve member perturbed parameter ensemble of climate model projections for representative concentration pathway (RCP) scenario RCP8.5. The daily total potential evapotranspiration (PET; kg m-2 d-1) was calculated using the Penman-Monteith equation parameterised for a well-watered grass surface. The daily total potential evapotranspiration with interception correction (PETI; kg m-2 d-1), was calculated as PET then a correction added for interception by a grass canopy on days with non-zero precipitation. The UKCP18 meteorological variables used were daily mean values of: specific humidity at 1.5 m (kg kg-1); sea level pressure (hPa); net surface long wave flux (W m-2); net surface short wave flux (W m-2); wind speed at 10 m (m s-1); air temperature at 1.5 m (degC); precipitation (mm d-1; used for PETI only). Other variables used were the surface elevation (m; https://data.ceda.ac.uk/badc/ukcp18/data/land-rcm/ancil/orog), atmospheric CO2 concentrations (ppmv), and land-sea mask that were used when running the climate model. A description of the methodology is available in the supporting documentation.
DOI: 10.5285/385ec5ab-0c47-46fc-b5df-008ca024296f
title: Urination data for Welsh Mountain ewes grazing upland and lowland pastures in North Wales, 2016

description: The data contains urination metrics including frequency, volume, chemical composition, estimated urine patch N loading rates and metabolomics profile of individual urine events from sheep (Welsh Mountain ewe) grazing a semi-improved upland pasture and a lowland improved pasture located in North Wales, UK. Urine collection studies were run in the spring, summer and autumn of 2016 for the semi-improved site and in autumn of 2016 on the lowland improved pasture. Sheep were housed in urine collection pens and while in the pens, each individual urine event was collected and stored separately. 

The study was conducted as a wider part of the NERC funded Uplands-N2O project (Grant No: NE/M015351/1). The frequency, volume and chemical composition of individual urine events has implications for nitrogen losses from the grazed pasture ecosystem, including emissions of the powerful greenhouse gas, nitrous oxide, and nitrate leaching.
description: Barren Welsh Mountain ewes (n = 6) were acclimatised on their respective pastures by allowing them to graze freely for five days prior to urine collection. Typically, between the hours of 10:00 and 16:00 the sheep were held in urine collection pens, which had slatted flooring raised above the ground and a urine collection tray located beneath. This allowed for the collection and storage of individual urine events from the individual sheep. Sheep were fed ad libitum while in the pens with cut and carried feed from the same respective pastures. Samples of the feed were retained and sent for forage analyses by Sciantec Analytical (Cawood Scientific Ltd., North Yorkshire, UK). Measurements of sheep urine frequency and volume were recorded in the field, including time and date of each urine event. These were extrapolated to provide urine parameters including an estimate of daily frequency, daily volume and daily N excretion and N loading rates per urine patch. Upon return to the laboratory the urine samples were stored frozen before being analysed for their chemical constituents including the urine pH, EC, total organic C, total N, urea, nitrate, ammonium, amino acid, allantoin, creatinine, uric acid, hippuric acid, benzoic acid, Ca, Na and K contents.  The dataset also contains individual urine event metabolomics profile for a subsample of the urine for spring compared to summer (semi-improved site) and for the autumn semi-improved pasture compared to autumn improved pasture. The data also includes meteorological data for each study. Readers are directed to the supporting documentation for further analytical details and quality control procedures for the measurements undertaken.
DOI: 10.5285/87dec506-ca7f-4b57-a605-486ec9d8cca2
title: 210Pb-dated historical lake sediment metal concentrations from The Lake District, England (mid-19th century to 2016)

description: Measurements of sediment properties (incl. organic and carbonate content), radionuclides (210Pb, 137Cs, 241Am) and elements (including mercury, nickel, copper, zinc, and lead) in lake sediment successions. Radionuclide dating provides a reliable chronology of sediment ages from the mid-19th century (sometimes only 20th century) to the present (2016). The dataset comprises a standardised matrix of multiple measured sediment variables (element values per mass) against stratigraphic depth for 8 lakes. In these water bodies multiple core datasets exist, one collected from the littoral zone, one of intermediate depth and one from the deepest area. The deepest core was used for 210Pb dating. The intermediate and littoral depth cores are not dated, except at Esthwaite where the littoral core (29328_ESTH_LITT.csv) had been previously collected, 210Pb dated and measured for organic and carbonate content.
description: Sediment cores were collected by boat and coring equipment in 2016. Cores were subsampled (sliced) on-site and processed on return to laboratory. Multiple samples from separate core depth intervals were measured. Samples of sediment intervals were measured for water content, organic content and carbonate content by heating and combustion (loss-on-ignition). Concentrations of elements were measured on freeze-dried, milled samples of sediment by X-Ray Fluorescence (XRF) spectroscopy using an Energy dispersive XRF (Bruker Ltd) with standard reference sediments prepared and run with the core samples. 210Pb dating and other radionuclides were measured on subsamples from core intervals by gamma spectroscopy at the UCL Environmental Radiometric Facility. Mercury (total) was measured on subsamples by cold-vapour fluorescence spectroscopy (CV-AFS). Sediment core element concentrations measured by XRF and CV-AFS were measured in machines with laboratory blanks and standard reference sediment samples.