MEOS - Model Sentinel-1 SAR - Reception and Processing Terminal Brochure

KONGSBERG SPACETEC AS Prestvannveien 38 P.O.B. 6244 NO-9292 Tromsø NORWAYPhone: +47 77 66 08 00 Fax: +47 77 65 58 59 Email: marketing@spacetec.no www.spacetec.no© Kongsberg Spacetec AS - MEOS-PA-KSPT-616-9164, Issue/revision 1/0, October 20091Kongsberg Spacetec ASMEOSTM OATOil-spill Analysis ToolThe Kongsberg OAT is a stand-alone application for analysing SAR (Synthetic Aperture Radar) images. The purpose is to support the operator in searching for, detecting, classifying and reporting oil spills.Searching for oil spillsOAT offers pixel scaling filters in order to improve contrast in SAR images. This combined with efficient zoom and pan helps the operator in navigating the image and searching for oil spills. The panner leaves a footprint of the areas visited in the image, giving the operator a quick overview of remaining areas to search..DetectionWhile identifying oil spills still is a manual task performed by a trained operator, detecting them is made easier with the tools available in the OAT.A magic wand can be used to extract the outline of an identified oil spill, where the threshold and level of detail can be interactively adjusted to optimally fit the contour of the oil spill.For those low contrast, grained images where the automatic contour finding is less than optimal, a vector polygon tool can be used together with a zoomed view of the image to manually trace the contour of the oil spill.Geographic properties such as position and area are automatically attached to the detected oil spill.Additionally, many other properties can be associated with an oil spill. E.g wind speed in the area, orientation of the spill, and one or more possible sources for the spill.If available, AIS (Automatic Identication System) for marine vessels can be used as an overlay layer on SAR images in order to identify a possible source.Fixed, mobile, surface and sub-surface oil installations, as well as oil pipelines can be used in the same way as AIS. ClassificationWhen an oil spill is identfied and detected, attributes can be assigned to it. These are typically used to describe the properties of the detetion, but it can also be used to tag it as a false positive. E.g in case of an algea concentration on the sea surface, which can have a similar appearance as an oil spill. Or it can be heavy rain cells, which also can resemble an oil spill.ReportingOnce an oil spill is identified, subscribers of the oil spill detection service are notified by packing the necessary information into a report bundle and transmitting it across the net. The report bundle contains a web page with details about the source image, the oil spill and any possible sources. Image snapshots of the oil spills as well as GML (Geographic Markup Language) representation of the oil spills are also included.The style and contents of the reports can be customised to suit the needs of the service provider. This is achieved by using XML templates, schemas (XSD) and style sheets (CSS).Key Features• Stand-alone Java application1• Supports native SAR and GeoTIFF formats• Image enhancements• Geographical layers stored in database2• Customisable report content and style• Early warning through e-mail• Correlation of geographical layers 1 Some features require Linx and will not run on Windows or OS X 2 Currently only Oracle Spatial is supportedW O R L D C L A S S - t h rough peop l e , t e chno l ogy and ded i ca t i onKONGSBERG SPACETEC AS Prestvannveien 38 P.O.B. 6244 NO-9292 Tromsø NORWAYPhone: +47 77 66 08 00 Fax: +47 77 65 58 59 Email: marketing@spacetec.no www.spacetec.no© Kongsberg Spacetec AS - MEOS-PA-KSPT-616-9164, Issue/revision 1/0, October 20092ComponentsThe main component of the OAT is a stand-alone Java application. In addition it uses a database with geospatial capabilities to store geographic layers, analyses and reports. Meta data, or header fields, from the satellite images are also stored in the database.Currently, Oracle with spatial features are supported, e.g Oracle Express Edition1A stand-alone Java application is used to scan a drop box of incoming SAR images. Header fields are extracted from the images and stored in the database.A stand-alone Java application is also used to scan a drop box of incoming geographic layers. Any layer in GML with a supported schema is imported into the database.The delivery mechanism for report bundles can be modified to fit existing net infrastructure.1 The Oracle Express Edition is a free database with spatial features from Oracle, but it has limitations with respect to storage size and hardware utilization. See www.oracle.com for details.Image enhancementA number of tools are available in order to improve the SAR image for analysis. The most advanced is the near-far range filter which improves the contrast in range based on the incidence angle and flight direction. This is to compensate for a typical feature of some SAR beam modes, where the near and far range can have very different contrast levels.Histogram based scaling are available by high and low percentage clipping, normalisation, standard deviation and equalisation.An interactive linear curve editor can be used for fine control over the pixel scaling, whereas the simplest form is linear scaling the entire range between a new minimum and maximum value specified by the operator.Main window with product and report lists Map view with SAR image, excluse economic zones, coastlines, and wind dataScreen captures of OAT in useMEOSTM OAT Oil-spill Analysis ToolKONGSBERG SPACETEC AS Prestvannveien 38 P.O.B. 6244 NO-9292 Tromsø NORWAYPhone: +47 77 66 08 00 Fax: +47 77 65 58 59 Email: marketing@spacetec.no www.spacetec.no© Kongsberg Spacetec AS - MEOS-PA-KSPT-616-9164, Issue/revision 1/0, October 20093MEOSTM OAT Oil-spill Analysis ToolPanner window with footprintsArchive of previously generated reportsCreating a report from detected oil spillsKONGSBERG SPACETEC AS Prestvannveien 38 P.O.B. 6244 NO-9292 Tromsø NORWAYPhone: +47 77 66 08 00 Fax: +47 77 65 58 59 Email: marketing@spacetec.no www.spacetec.no© Kongsberg Spacetec AS - MEOS-PA-KSPT-616-9164, Issue/revision 1/0, October 20094MEOSTM - is a registered trademark of Kongsberg Spacetec AS in Norway and in other countries.Note Specificatons are subject to change without notice. MEOSTM OAT Oil-spill Analysis ToolInput formats• ASAR - APM, APP, APS, IM, WS• Radarsat 1 (CEOS) - SLC, SGF, SGX, SCN, SCW, SSP, SPG• Radarsat 2 (XML + GeoTIFF) - SLC, SGF, SGX, SSG• GeoTIFF• PNG• JPEGOutput formats• GeoTIFF• PNG• JPEG• XML• GML Supported layers (GML)• Coastlines• Exclusive econimic zones• Pipelines• Surface and sub-surface oil installations• AIS• Ship detection• Wind vectors - meteorological - SAR• Annotation• Oil spill• Customer specified GML layers Correlation• Delete operation for correlation results (based on proximity) between ship detection layer, AIS and oil installation layers• Copy attributes operation for correlation results (based on proximity) between ship detection layer, AIS and oil installation layers. Image Enhanchements• Linear scaling• Linear scaling with multiple breakpoints• Histogram scaling (% low and high clip)• Histogram normalisation• Histogram equalisation• Standard deviation• Near/far range scaling based on incidence angle Tools• Linking of multiple map views• Magic wand for tracing oil spill contours• Panner window with footprints• Detail view showing magnified pixels (2 - 20x)• Automatic or manual generation of zoom pyramids for fast zooming• Save current raster and layers as snapshot to file or database• Layer templates• Measure distance• Measure area• Measure overlap between polygons Hardware and software requirementsRecommended hardware and software• 4GB RAM• 1 GB available disk space for the installation, database and product archive require additional space• Intel Core 2 Duo 3 GHZ• Sun Java 1.6 Update 10• SuSE Linux 10.31 1 Will run on most flavors of Linux and also on Windows, but some features require Linux.