urn:eop:VITO:TERRASCOPE_S1_SLC_COHERENCE_V1 Spaceborne Level 1-3 Imagery Flemish Institute for Technological Research (VITO) Boeretang 200 Mol 2400 Belgium info@terrascope.be https://services.terrascope.be/catalogue/description HTTPS VITO OSCARS VITO OpenSearch CAtalogue for Remote Sensing Office hours, 7 days per week Preferrably by e-mail 2020-04-01T10:52:43 ISO19115 2003/Cor.1:2006 https://www.opengis.net/def/crs/EPSG/0/4936 INSPIRE RS registry Sentinel-1 Level-1 Single Look Complex (SLC) Coherence products. 2020-04-01 V001 2020-04-01 Flemish Institute for Technological Research (VITO) 2020-04-01 urn:eop:VITO:TERRASCOPE_S1_SLC_COHERENCE_V1 https://sentinels.copernicus.eu/web/sentinel/user-guides/sentinel-1-sar/product-types-processing-levels/level-1 The Interferometric Coherence product is the amplitude of the complex correlation coefficient between two images. In simple way, coherence describes similarity between two images in a range between zero to one. Zero means pixels were totally different where one means pixels were same exactly.The product algorithm starts from two ESA Level-1 SLC products which are from the same area, the same relative orbit number and preferably from within a short time interval (6 days is the shortest possible with S1A and S1B pairs). The original paired images go through a workflow of orbit correction, co-registration through back-geocoding, coherence calculation and terrain correction by making use of standard SNAP tools as part of the Sentinel-1 toolbox (S1TBX).The terrain correction step is intended to compensate for distortions due to topographical variations of the scene and the tilt of the satellite sensor, so that the geometric representation of the image will be as close as possible to the real world. The Level1 SLC COHERENCE product can be useful for Land monitoring and Emergency management. This product is provided by the VITO TERRASCOPE Project funded by BELSPO (Belgian Science Policy). Flemish Institute of Technological Research (VITO) - Belgium Helpdesk Boeretang 200 Mol 2400 Belgium info@terrascope.be https://services.terrascope.be/catalogue/description HTTPS VITO OSCARS VITO OpenSearch CAtalogue for Remote Sensing Office hours, 7 days per week Preferrably by e-mail https://docs.terrascope.be/DataProducts/collections/QUICKLOOKS/SENTINEL1_SLC_COHERENCE_QL.JPG Example quicklook of Sentinel1 SLC Coherence product. JPEG SAFE v1 SAFE processing Eionet GEMET Thesaurus 2011-09-12 C-SAR Sentinel-1A Sentinel-1B Sentinel-1 COHERENCE RADAR https://sentinel.esa.int/documents/247904/690755/Sentinel_Data_Legal_Notice license Sentinel-1 2017-06-15 C-SAR 2017-06-15 10 eng imageryBaseMapsEarthCover -180.00000000 180.00000000 -84.00000000 84.00000000 Single scenes Day 2015-07-06T00:00:00 2021-12-31T23:59:00 https://services.terrascope.be/catalogue/description SAFE v1 SAFE format VITO VITO TERRASCOPE Helpdesk Boeretang 200 Mol 2400 Belgium info@terrascope.be https://services.terrascope.be/catalogue/description HTTPS VITO OSCARS VITO OpenSearch CAtalogue for Remote Sensing Office hours, 7 days per week Preferrably by e-mail Free to download Products can be downloaded. https://services.terrascope.be/catalogue/description HTTPS TERRASCOPE Catalogue Search and download datasets using the VITO TERRASCOPE OpenSearch CAtalogue for Remote Sensing urn:eop:VITO:TERRASCOPE_S1_SLC_COHERENCE_V1 Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 See the referenced specification true The Interferometric Coherence product is the amplitude of the complex correlation coefficient between two images. In simple way, coherence describes similarity between two images in a range between zero to one. Zero means pixels were totally different where one means pixels were same exactly.The product algorithm starts from two ESA Level-1 SLC products which are from the same area, the same relative orbit number and preferably from within a short time interval (6 days is the shortest possible with S1A and S1B pairs). The original paired images go through a workflow of orbit correction, co-registration through back-geocoding, coherence calculation and terrain correction by making use of standard SNAP tools as part of the Sentinel-1 toolbox (S1TBX).The terrain correction step is intended to compensate for distortions due to topographical variations of the scene and the tilt of the satellite sensor, so that the geometric representation of the image will be as close as possible to the real world.