858 Works

Root data from Climoor fieldsite in Clocaenog Forest

A. Sowerby & B.A. Emmett
This dataset includes all measurements of roots from the Climoor fieldsite in the Clocaenog Forest. The data spans three periods: 2003-2004, 2008 and 2011. In 2003 and 2004, 5cm x 15cm plastic root cores were measured, and roots manually picked out the soil. In 2008, root biomass was determined by sieving and washing. In 2011, root biomass, density and length was also determined using sieving and washing. However, the methods used in each of the...

Vegetation map of the Moor House National Nature Reserve

A. Eddy, D. Welch & M. Rawes
This is a spatial dataset containing polygons representing areas of vegetation mapped within the Moor House National Nature Reserve in the northern Pennines, England. The map was created by staff of The Nature Conservancy in the 1960s.

LiDAR based Digital Surface Model (DSM) data for South West England

F. Ferraccioli, F. Gerard, C. Robinson, T. Jordan, M. Biszczuk, L. Ireland, M. Beasley, A. Vidamour, A. Barker, R. Arnold, M. Dinn, A. Fox & A. Howard
This is a high resolution spatial dataset of Digital Surface Model (DSM) data in South West England. It is a part of outcomes from the CEH South West (SW) Project. There is also a Digital Terrain Model (DTM) dataset covering the same areas available from the SW project. Both DTM and DSM cover an area of 9424 km2 that includes all the land west of Exmouth (i.e. west of circa 3 degrees 21 minutes West)....

Water Chemistry Data from the Wolf and Tamar catchment in South West England

G. Webb, P. Scarlett, E. Gozzard, L. Armstrong, H. Wickham & F. Edwards
This dataset contains chemical determinants of river water samples collected from the Wolf and Tamar catchments in South West England in December 2013. It is a part of the Centre for Ecology & Hydrology South West (SW) Project.

Operational taxonomic units for epilithon eukaryotes in the rivers Wolf and Tamar catchments

R. Griffiths, F. Edwards, P. Scarlett, G. Webb, R. Sarlej & B. Thomson
This datset contains operational taxonomic units for epilithon eukaryotes (water samples): Approximate location of sampling sites was determined from maps to provide good spatial coverage of the Wold River through to the Tamar River. Exact sites were determined in the field, considering accessibility and other logistics. The exact location of each sample site was determined using a Garmin GPS12. Three stones were taken from each of the 20 locations and epilithon removed from a defined...

Location and identification of water sample sites from the Wolf and Tamar catchments

R. Griffiths, F. Edwards, P. Scarlett, G. Webb, R. Sarlej & B. Thomson
This dataset contains the codes for water laboratory analysis, water sample identification, sampling dates and locations for water samples collected from the Tamar catchment in winter 2013/2014 as part of the South West project. It should be used in conjunction with datasets describing water bacteria and water eukaryote operational taxonomic unit sequence data.

Major ion and nutrient data from rivers [LOIS]

D. Leach, M. Neal, N. Bachiller-Jareno, I. Tindall & R. Moore
Discrete data for major ions and nutrients in river water for 13 sites in the Humber catchment over the periods 1993 to 1997 and 1996 to 1997 and for 3 sites from the Tweed catchment over the period 1994 to 1997. Ions and nutrients measured were: Ammonia, Calcium (dissolved), Magnesium (dissolved), Potassium (dissolved), Sodium (dissolved), Bromide-ion, Carbon (organic dissolved), Chloride-ion, Nitrate, Nitrite, Phosphorus (soluble reactive), Phosphorus (total dissolved), Silicate (reactive dissolved), Sulphate, Carbon (organic particulate),...

Gridded estimates of daily and monthly areal rainfall for the United Kingdom (1890-2012) [CEH-GEAR]

M. Tanguy, H. Dixon, I. Prosdocimi, D. G. Morris & V. D. J. Keller
1 km gridded estimates of daily and monthly rainfall for Great-Britain and Northern Ireland (together with approximately 3000 km2 of catchment in the Republic of Ireland) from 1890 to 2012. The rainfall estimates are derived from the Met Office national database of observed precipitation. To derive the estimates, monthly and daily (when complete month available) precipitation totals from the UK rain gauge network are used. The natural neighbour interpolation methodology, including a normalisation step based...

Integrated Hydrological Units of the United Kingdom: Hydrometric Areas with Coastline

This dataset is part of Integrated Hydrometric Units (IHU) of the UK. Hydrometric Areas are used to organise river flow measurement and hydrometric data collection in the UK. Hydrometric Areas are either integral river catchments having one or more outlets to the sea or tidal estuary, or they may include several contiguous river catchments having topographical similarity but separate tidal outlets. In mainland Britain they are numbered from 1 to 97 in clockwise order around...

Global dilution factors for domestic wastewater in rivers

V. D. J. Keller, R. Williams, C. Lofthouse & A.C. Johnson
The dataset captures the temporal and spatial variability of dilution factors (DFs) around the world using geographically referenced data sets at 0.5 degree resolution and includes long term annual and monthly DFs grids. The dilution factor (DF) dataset is composed of 13 rasters: 1 annual and 12 monthly. DFs are a critical component in estimating concentrations of 'down-the-drain' chemicals which enter freshwaters following consumer use via the domestic waste water stream (e.g., pharmaceuticals, household cleaning...

Cleaned UK rainfall chemistry data (1986-2011)

J.N. Cape, R. I. Smith & D.S. Leaver
These data are based on the UK rainfall chemistry data held on the UK-AIR database operated on behalf of Defra (http://uk-air.defra.gov.uk/). A subset of 20 sites was analysed, being those with the longest continuous data record from 1986 to 2011. Rainfall samples from bulk collectors were taken weekly or two-weekly at sites across the UK and analyzed by a central laboratory. The raw reported data contain some samples which were contaminated by bird droppings, or...

Land Cover Map 2007 (1km dominant aggregate class, GB) v1.2

R.D. Morton, C.S. Rowland, C.M. Wood, L. Meek, C.G. Marston & G.M. Smith
This dataset consists of a 1km resolution raster version of the Land Cover Map 2007 for Great Britain. Each 1km pixel represents the dominant aggregate class across the 1km area. The aggregate classes are aggregations of the target classes, broadly representing Broad Habitats (see below). The dataset is part of a series of data products produced by the Centre for Ecology & Hydrology known as LCM2007. LCM2007 is a parcel-based thematic classification of satellite image...

Pollinator visitation data on oilseed rape varieties

B.A. Woodcock, M. Edwards, W.R. Meek, P. Nuttall, S. Falk & R.F. Pywell
This dataset contains counts of pollinators visiting different varieties of oilseed rape (OSR). Data were collected from four trial sites in the UK in May 2012. The trial sites comprised of 20 varieties (plots) replicated in three blocks on each farm but only 2 of the blocks at each site were used for pollinator observations. Pollinator observations were also only made where there were greater than 30 percent of OSR plants in flower in the...

Total alkalinity data from rivers [LOIS]

D. Leach, N. Bachiller-Jareno, I. Tindall & R. Moore
Discrete total alkalinity data for 13 sites in the Humber catchment sampled within the period 1993 to 1997 and 1996 to 1997 and for 3 sites from the Tweed catchment over the period 1994 to 1997, as part of the Land Ocean Interaction Study project (LOIS). Sites were sampled at regular weekly intervals and more intermittently during high flows (on average an extra sampling once a month per site). Samples were analysed on day of...

Photosynthesis of Trifolium repens versus Lolium perenne after ozone exposure in solardomes

F. Hayes, G. Mills & M. Ashmore
The dataset consists of ACi (net CO2 assimilation rate, A, versus calculated substomatal CO2 concentration, Ci) curve data from an ozone experiment during which Trifolium repens and Lolium perenne were exposed as both monocultures and two-species mixtures to an episodic rural ozone regime in large, well-watered containers within solardomes for 12 weeks. Treatments were elevated ozone (AOT40 (Accumulated Ozone Threshold exposure of 40 parts per billion) of 12.86 ppm h) or control conditions (AOT40 of...

Integrated Hydrological Units of the United Kingdom: Hydrometric Areas without Coastline

F. Kral, M. Fry & H. Dixon
This dataset is part of Integrated Hydrological Units (IHU) of the UK, a set of geographical reference units for hydrological purposes including river flow measurement and hydrometric data collection. Hydrometric Areas are either integral river catchments having one or more outlets to the sea or tidal estuary, or they may include several contiguous river catchments having topographical similarity but separate tidal outlets. Hydrometric Areas are the coarsest units of the IHU in terms of spatial...

Integrated Hydrological Units of the United Kingdom: Catchments

F. Kral, M. Fry & H. Dixon
This dataset is part of Integrated Hydrological Units (IHU) of the UK, a set of geographical reference units for hydrological purposes including river flow measurement and hydrometric data collection. This dataset was derived from the Integrated Hydrological Terrain Model. A Catchment represents the full area upstream from a Section outlet, which is a cell upstream of a confluence of two watercourses with known names. While Sections do not overlap, Catchments can overlap because one Catchment...

High-resolution global topographic index values

T.R. Marthews, S.J. Dadson, B. Lehner, S. Abele & N. Gedney
The topographic index is a hydrological quantity describing the propensity of the soil at landscape points to become saturated with water as a result of topographic position (i.e. not accounting for other factors such as climate that also affect soil moisture but are accounted for separately). Modern land surface models require a characterisation of the land surface hydrological regime and this parameter allows the use of the TOPMODEL hydrological model to achieve this .This Geographic...

Standardised Precipitation Index time series for Integrated Hydrological Units Hydrometric Areas (1961-2012)

M. Tanguy, F. Kral., M. Fry, C. Svensson & J. Hannaford
Standardised Precipitation Index (SPI) data for Integrated Hydrological Units (IHU) Hydrometric Areas (Kral et al. [1]). SPI is a drought index based on the probability of precipitation for a given accumulation period as defined by McKee et al. [2]. SPI is calculated for different accumulation periods: 1, 3, 6, 12, 18, 24 months. Each of these is in turn calculated for each of the twelve calendar months. Note that values in monthly (and for longer...

Countryside Survey mapped estimates of Broad Habitat area change in Great Britain between 1998 and 2007

C.J. Barr, M.J. Brown, R.G.H. Bunce, P.D. Carey, K. Chandler, A. Crowe, M.K. Gillespie, D.C. Howard, L.C. Maskell, L.R. Norton, R.J. Scott, W.A. Scott, S.M. Smart, R.C. Stuart, J.W. Watkins, C.M. Wood & S.M. Wright
This dataset consists of change data for areas of Broad Habitats across Great Britain between 1998 and 2007. The data are national estimates generated by analysing the sample data from up to 591 1km squares and scaling up to a national level. The data are summarized as percentage increase or decrease in habitat area per Land Class (areas of similar environmental characteristics) and are in a vector format. The sample sites are chosen from a...

Cumbrian Lakes plankton and fish data (1940 to 2013)

S.J. Thackeray, M.M. De Ville, J.M. Fletcher, J.B. James, S.C. Maberly, E.B. Mackay & I.J. Winfield
This dataset consists of phyto- and zooplankton counts, chlorophyll concentration and fish catch data from the Cumbrian Lakes (Blelham Tarn, Esthwaite Water, Windermere north and south basins). The data span the years 1940 to 2013 but time series vary in length among different species and sites, and fish data are only available from Windermere. The original data were initially collected by the Freshwater Biological Association (FBA) but have been collected by CEH and its predecessor...

Crustacean zooplankton data from Loch Leven, 1972-2007

I.D.M. Gunn, D.G. George, D. Johnson, D.H. Jones & L. May
The dataset comprises densities of the major crustacean zooplankton taxa collected from Loch Leven, a large shallow lake in the lowlands of Scotland, between 1972-2007. Data are provided as numbers of individuals per litre for each taxa. The data were collected by the Centre for Ecology & Hydrology and its predecessor bodies, as part of the Loch Leven long-term monitoring programme. Methods of collection varied over the period of collection with samples generally collected at...

Individual heath area estimates for land cover types in Dorset: 1978-2005

R.J. Rose, J.M. Bullock, R.T. Clarke, J.E. Cordingley & A.C. Newton
This dataset is a census of the heathland and associated vegetation from Dorset, UK. The Dorset heathlands are situated in South West England, and are generally associated with free-draining and acidic soils overlying Tertiary sands and gravels. The heathlands comprise a mosaic of different vegetation types, characterised by dwarf shrub communities dominated by members of the Ericaceae (e.g. Calluna vulgaris, Erica spp.), together with areas of mire, grassland, scrub and woodland. Unless they are managed...

United Kingdom Butterfly Monitoring Scheme: site location data 2014

M. Botham, D. Roy, T. Brereton, I. Middlebrook & Z. Randle
This dataset provides the details of all sites which have been monitored as part of the UK Butterfly Monitoring Scheme (UKBMS). Data includes the location within the UK, the length and width of the line transect on each site, and how long the transect has been monitored. The UKBMS started in 1976 with fewer than 50 sites. The number of sites monitored each year has increased to over a thousand since 2008. There is turnover...

Land Cover Map 2000 (25m raster, GB)

R.M. Fuller, G.M. Smith, J.M. Sanderson, R.A. Hill, A.G Thomson, R. Cox, N.J. Brown, R.T Clarke, P. Rothery & F.F. Gerard
This dataset consists of a 25m resolution raster version of the Land Cover Map 2000 for Great Britain. Each 25m pixel represents a 25m area of land cover target class, broadly representing Broad Habitats (see below). The dataset is part of a series of data products produced by the Centre for Ecology & Hydrology known as LCM2000. LCM2000 is a parcel-based thematic classification of satellite image data covering the entire United Kingdom. The map updates...

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