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This data set contains velocity and strain rate fields over the northeast Tibetan Plateau, which are derived from Sentinel-1A and -1B synthetic aperture radar satellite data (SAR) and stored in GeoTIFF (.tif) or NETCDF (.grd) formats. The velocities in the line-of-sights (LOS) of the satellites were processed at ~100 m resolution from time series in ~250km x 250km frames. The data set consists of velocities from 10 frames in ascending tracks and 13 frames in descending tracks of the satellites' orbits. The spatial extent of the velocities spans 96E-108E and 32N-43N, covering an area of 660,000 km^2. The temporal coverages of the data span from October 2014 to December 2019 across 65-110 acquisition epochs. The uncertainties of the velocities average to <1 mm/yr. The time series are inverted from fully-connected networks of short-temporal-baseline interferograms which are generated from interfering and unwrapping pairs of SAR imagery. The velocities represent the average velocity through the displacement time series. The LOS velocities were decomposed into east and vertical velocities which are also archived with associated uncertainties. These Cartesian fields cover the overlapping areas between ascending and descending tracks and total 440,000 km^2. By combining the horizontal gradients of the filtered east velocities and interpolated north velocities from Global Navigational Satellite System, we derive second invariant, maximum shear, and dilatation strain rate fields for the same area with 1 km sampling intervals. These strain rate fields highlight creeping sections and strain concentration on faults and fault junctions. The velocity fields reveal fault kinematics in terms of slip rates and partitioning. The vertical velocities also show non-tectonic signals such as subsidence related to permafrost melting, groundwater extraction, and reservoir loading, as well uplift from blocked drainages. The data are collected and processed by Qi Ou with the automatic processing tools developed by Milan Lazecky. Velocity and strain rate fields were interpreted by all authors. By default, interferograms were generated from each epoch to six consecutive epochs and between acquisition pairs with six-month and nine-month temporal baselines. Interferograms with the unwrapping error were removed from the network and all networks were continuous and fully connected.
Continuous GPS measurements between 2002 and 2008 were made at a number of stations across the Aegean to monitor tectonic movement across the Eastern Mediterranean by the UK's Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET). These data are made available in the RINEX (Receiver-INdependent data EXchange) format, version 2.10 or more recent, with Hatanaka compaction and UNIX compression applied. These data are available to all registered users under the UK Government Open Data licence. This was part of an ongoing collection published in yearly datasets.
Effects of low-dose ionising radiation on reproduction and DNA damage in marine and freshwater amphipod crustaceans
Data comprise results of laboratory experiments assessing the impacts of beta radiation (phosphorus-32) on reproduction, development and DNA damage in a marine and freshwater crustacean species. All crustacean samples were collected either from Lock Lake, Portsmouth (marine crustacean Echinogammarus marinus) or from the River Ems, Emsworth (freshwater crustacean, Gammarus pulex). Laboratory experiments were conducted periodically from summer 2015 to autumn 2016 at the University of Portsmouth. The data are of use in elucidating the mechanisms and effects of low-dose ionising radiation on an important group of model organisms in radioecology. Full details about this dataset can be found at https://doi.org/10.5285/b70afb8f-0a2b-40e6-aecc-ce484256bbfb
Data comprise audio files captured using a Wildlife Acoustics SM3 Songmeter located on an overgrown unpaved road close to several abandoned houses with deciduous trees (including fruit trees in former gardens) in the abandoned village of Buryakovka in the Chernobyl Exclusion Zone, Ukraine. A single continuous recording of twelve hours of audio from midday until midnight on the 25th June 2015 was manually annotated by an expert (using Raven Pro interactive sound analysis software). The dataset comprises the resultant five wave files (stereo .wav sampled at 48 kHz) and five annotation files (text files with the same name as the associated wave file). Full details about this dataset can be found at https://doi.org/10.5285/be5639e9-75e9-4aa3-afdd-65ba80352591
Following the Fukushima accident in March 2011, grass samples were collected from 42 sites around Great Britain during April 2011. Iodine-131 was measurable in grass samples across the country with activity concentrations ranging from 10 to 55 Bq per kg dry matter. Concentrations were similar to those reported in other European countries. Rainwater and some foodstuffs were also analysed from a limited number of sites. Of these, I-131 was only detectable in sheep's milk (c. 2 Bq/kg). Caesium-134, which can be attributed to releases from the Fukushima reactors, was detectable in six of the grass samples (4-8 Bq/kg dry matter); 137Cs was detected in a larger number of grass samples although previous release sources (atmospheric weapons test and the 1986 Chernobyl and 1957 Windscale accidents) are likely to have contributed to this. All data and information for this sampling are available from this record. The data result from collaboration between CEH and the University of Stirling. Full details about this dataset can be found at https://doi.org/10.5285/1a91c7d1-ec44-4858-9af2-98d80f169bbd
Data comprise radiocaesium concentrations in soil, vegetation, wildlife and fungi analysed from samples collected from throughout Great Britain after the 1986 Chernobyl accident by the Centre for Ecology & Hydrology (CEH), formerly the Institute of Terrestrial Ecology (ITE). National level vegetation surveys were conducted in May 1986, October 1986 and Spring 1987. More intensive surveys of vegetation (grass and heather) and wildlife (grouse, fox, etc.) in restricted areas were carried out in Cumbria, Wales and North Yorkshire in 1989, 1990, 1991 and 1993. Surveys of fungi were carried out between 1994 and 1997. The data are suitable for interpolation to create spatially variable surfaces suitable for input into models. Full details about this dataset can be found at https://doi.org/10.5285/d0a6a8bf-68f0-4935-8b43-4e597c3bf251
Element and radionuclide concentrations in representative species of the ICRP's Reference Animals and Plants and associated soils from a forest in north-west England
This dataset presents the results of an initial sampling exercise conducted at a terrestrial site in northwest England in summer 2010. The following samples of terrestrial Reference Animals and Plants (RAPs) were obtained from an area of circa 0.4 km squared: Molinia caerulea (ICRP RAP Wild Grass defined as Poaceae); Picea sitchensis (ICRP RAP Pine Tree defined as Pinaceae); Apis spp., Bombus spp., Nomada spp. (ICRP RAP Bee defined as Apidea); Apodemus sylvaticus (ICRP RAP Rat defined as Muridae); Earthworms (species in the Family Lumbricidae as defined for the ICRP RAP Earthworm); Deer (belonging to the Family Anatidae (i.e. the ICRP RAP Deer). Soil samples were also collected from throughout the sampling area. All samples were analysed for multiple elements using ICP-MS/ICP-OES and most for gamma-emitting radionuclides. Results have been used to derive biota-soil concentration ratios. The ICRP have published their framework for radiation protection of the environment (ICRP Publication 108). This describes the use of RAPs as the basis for their framework. The RAPs are generalised to the taxonomic level of Family. Publication 108 presented dose coefficient values for the selected RAPs and also reviewed data on the effects of ionising radiation to suggest Derived Consideration Reference Levels for each RAP. In summer 2010 the ICRP released a further report on their protection framework for consultation. This report presented transfer parameter values (organism-media concentration ratios) for Reference Animals and Plants. The report also raised the possibility of identifying a series of sites where samples of each Reference Animal and Plant, and their different lifestages, could be collected and analysed. It was suggested that the resultant data would constitute a set of reference values analogous to approaches used by the ICRP for human radiological protection. Full details about this dataset can be found at https://doi.org/10.5285/e40b53d4-6699-4557-bd55-10d196ece9ea
Data comprise radionuclide concentrations in soils and a range of terrestrial vertebrate species (reptiles, small mammals and birds) sampled in the Chernobyl Exclusion Zone (CEZ) between 1999 and 2008. Reptiles were collected in 1999, 2000, 2001, 2003 and 2007, birds, bats, and small mammals were collected in 2004, 2005, 2007 and 2008. Dose rate data are provided for one study, both as ambient dose rate measurements and also as recorded by thermoluminescent dosimeters attached to small mammal species. The isotopes measured include: Americium-241, Caesium-134 and 137, Cobalt-60, Europium-154 and 155, Potassium-40, Plutonium-238, -239 and -240, Strontium-90. The data were used to assess the concentration of radioactive contamination in soil, consequent uptake of radionuclides by wildlife living in the CEZ and to test prediction of the ERICA Tool assessment model. The data were used to assess the uptake of radionuclides by wildlife living in the CEZ and to derive transfer parameters, and also to test predictions of the assessment model the ‘ERICA Tool’. Full details about this dataset can be found at https://doi.org/10.5285/518f88df-bfe7-442e-97ad-922b5aef003a