60d05e0ef4f8029cf4ea9ff7cdbc9e4d English dataset Andriy Kurekin Plymouth Marine Laboratory (PML) +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH anku@pml.ac.uk pointOfContact Peter Land Plymouth Marine Laboratory (PML) Atmospheric Physicist and Remote Sensing S +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH peland@pml.ac.uk pointOfContact Peter Miller Plymouth Marine Laboratory (PML) Senior Earth Observation Scientist +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH pim@pml.ac.uk pointOfContact 2017-12-07 MEDIN Discovery metadata standard 2.3.8 urn:ogc:def:crs:EPSG::4326 2006-2012 Internal Waves Density and Seabed Impact Maps of UK continental shelf 2017-10-31 publication 2017-09-30 creation OESEA-17-73PMA187 http://www.pml.ac.uk Satellite remote sensing using a synthetic aperture radar (SAR) sensor can deliver thousands of measurements of sea surface roughness and provide systematic observations of internal wave (IW) features over many years. We processed ENVISAT ASAR sensor data acquired in 2006-2012 by the European Space Agency, to build detailed maps of internal wave occurrence and climatology for the UKCS. Up to a hundred SAR scenes per month covered the region of interest, over 3,400 in total, a volume of data that cannot be processed manually. We developed a new methodology for automated processing of satellite images, detection of IW features and combining the processed scenes into monthly composites and climatologies of IW occurrence. These IW occurrence maps have been applied to estimate the impact of IWs on the seabed in the UKCS. Regions with high likelihood of seabed disturbance were identified by combining the mixed layer depth, bathymetry and IW occurrence data. Monthly and annual climatology maps of the UKCS have been produced showing the spatial and temporal variability of high and low impact regions. Andriy Kurekin Plymouth Marine Laboratory (PML) +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH anku@pml.ac.uk originator Peter Land Plymouth Marine Laboratory (PML) Atmospheric Physicist and Remote Sensing S +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH peland@pml.ac.uk originator Peter Miller Plymouth Marine Laboratory (PML) Senior Earth Observation Scientist +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH pim@pml.ac.uk originator Andriy Kurekin Plymouth Marine Laboratory (PML) +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH anku@pml.ac.uk custodian notPlanned Geographic Information System Image Marine Environmental Data and Information Network Atmospheric conditions GEMET - INSPIRE themes, version 1.0 2008-01-06 revision Radar backscatter SeaDataNet P021 parameter discovery vocabulary 2009-11-16 revision Internal waves anku 2017-10-31 creation Seabed Impact Sediment resuspension Sea surface roughnes Internal_Waves 2017-10-31 publication Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced. otherRestrictions No restrictions to public access 2600 English climatologyMeteorologyAtmosphere Charting Progress 2 Sea Areas 2009-06-18 creation Eastern Channel Charting Progress 2 Sea Areas 2009-06-18 creation Western Channel and Celtic Sea Charting Progress 2 Sea Areas 2009-06-18 creation Irish Sea Charting Progress 2 Sea Areas 2009-06-18 creation Southern North Sea Charting Progress 2 Sea Areas 2009-06-18 creation Northern North Sea Charting Progress 2 Sea Areas 2009-06-18 creation Minches & Western Scotland Charting Progress 2 Sea Areas 2009-06-18 creation Scottish Continental Shelf Charting Progress 2 Sea Areas 2009-06-18 creation Rockall Trough & Bank Charting Progress 2 Sea Areas 2009-06-18 creation Faroe-Shetland Channel Charting Progress 2 Sea Areas 2009-06-18 creation Atlantic North West Approaches -24.9958 3.9625 48.0458 65.0042 2006-10-01 2012-04-30 A. Kurekin, P. Land and P. Miller, 2017. Remote sensing for estimating impact of internal waves on the seabed. Phase 2: Implementation. Report on research project for Hartley Anderson Consulting and the UK Department for Business Energy and Industrial Strategy (BEIS). Andriy Kurekin Plymouth Marine Laboratory (PML) +44 (0)1752 633 100 +44 (0)1752 633101 Prospect Place The Hoe Plymouth PL1 3DH anku@pml.ac.uk distributor http://catalogue.ceda.ac.uk/uuid/d920cb54fe694711b59379f2b1b1f569 Access to dataset archived at Centre for Environmental Data Analysis (CEDA) A link to the web service or dataset dataset Data Specification on Sea regions - Draft Technical Guidelines 2013-02-03 publication See the referenced specification true The observational frequency maps of IW were generated by automatic processing of the ENVISAT ASAR data archive covering the period from 2006 to 2012. The IW frequency maps were combined with the bathymetry and MLD modelling data to estimate the impact of IWs on the seabed. The results are presented in monthly, seasonal, annual and climatology maps in three amplitude categories. The maps are presented in GeoTIFF and NetCDF formats for GIS users, and in PNG format for the users who do not have access to a GIS. The maps are given in low spatial resolution (10x10min per pixel) as well as in medium resolution (2.5x2.5min per pixel). Each of the "lowres" and "medres" directories contain "amp015", "amp050" and "amp100" subdirectories that store the data for IW amplitudes 15, 50 and 100 meters respectively. The files in GeoTIFF and NetCDF formats store the 2D maps as variables: "occurrence" - estimate of IW occurrence; "seabed_impact" - estimate of the interaction of IWs on the seabed; "pixels" - number of independent sensor measurements; "waves" - number of sensor measurements detected as IWs; "scenes" - number of scenes processed.