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90.416252 30.416386, 87.229263 30.416386, 87.229263 26.891405))", "links": { "data": [ { "type": "image/tiff", "href": "https://formater.osug.fr/permanent-products-repository/public/e817a8c7-a65d-4855-b2d7-1bc3308861d6/iw2_iw3/GDM_InU_radar_20240910_20240922_sd_4rlks.tiff", "title": "Data" } ], "alternates": [ { "type": "application/geo+json", "href": "https://formater.osug.fr/permanent-products-repository/public/e817a8c7-a65d-4855-b2d7-1bc3308861d6/iw2_iw3/GDM_InU_radar_20240910_20240922_sd_4rlks.json", "title": "geoJSON EO metadata" } ], "preview": [ { "type": "image/png", "href": "https://formater.osug.fr/permanent-products-repository/public/e817a8c7-a65d-4855-b2d7-1bc3308861d6/iw2_iw3/GDM_InU_radar_20240910_20240922_sd_4rlks.png", "title": "Preview" } ], "via": [ { "type": "text/meta", "href": "https://formater.osug.fr/permanent-products-repository/public/e817a8c7-a65d-4855-b2d7-1bc3308861d6/iw2_iw3/GDM_InU_radar_20240910_20240922_sd_4rlks.meta", "title": "GDM-SAR metadata" } ] }, "parent_collection": "e817a8c7-a65d-4855-b2d7-1bc3308861d6", "uuid": "e817a8c7-a65d-4855-b2d7-1bc3308861d6", "description": "[Repository](../collection.json) > [e817a8c7-a65d-4855-b2d7-1bc3308861d6](collection.json) > [Radar geometry](radar_collection.json) > [Interferograms](radar_interferogram_collection.json) > [Interferogram from 20241109 to 20241121](radar_interferogram_20241109_20241121_collection.json) > Unwrapped Differential Interferogram\n\n# Unwrapped Interferogram\n\n> The product corresponds to the **unwrapped interferogram**.\n>\n> The geotiff file has 2 bands:\n>\n> - band 1 is the filtered unwrapped phase of the interferogram. By default, the filter is a moving averaged, triangular sliding window applied on the wrapped phase (see Doin et al., 2015, for example). By default, unwrapping is done by the method described in Grandin et al., 2012.\n> - band 2 is by default the coherence obtained when the sliding window average has been applied on the wrapped interferogram: it thus quantifies the quality of the filtered phase. It can also be the product of the two image’s amplitudes if other types of filters have been employed.\n>\n> The png file has 1 band:\n>\n> - band 1 is the unwrapped phase difference of the interferogram, normalized by a color palette\n\n[source](https://formater.pages.in2p3.fr/flatsim/products/InU.html)\n", "providers": [ { "name": "ESA", "description": "The European Space Agency (ESA) is a 22-member intergovernmental body devoted to space exploration. With its headquarters in Paris and a staff of around 2,547 people globally as of 2023, the ESA was founded in 1975.", "roles": [ "producer" ], "url": "https://www.esa.int/" }, { "name": "OSUG", "description": "L'Observatoire des sciences de l'Univers de Grenoble (OSUG) est un observatoire des sciences de l'Univers (OSU) associé à l'Institut national des sciences de l'Univers (INSU) du CNRS et une école interne de l'université Grenoble-Alpes. Les OSU ont pour mission l’observation, la recherche, la formation et la diffusion des connaissances. L’OSUG œuvre dans tous les domaines des Sciences de l’Univers, de la planète Terre et de l’environnement.", "roles": [ "processor", "licensor" ], "url": "https://www.osug.fr/" }, { "name": "OPGC", "description": "L'Observatoire de physique du globe de Clermont-Ferrand (OPGC) est un observatoire des sciences de l'univers (OSU) dépendant du Centre national de la recherche scientifique (CNRS) et de l’université Clermont-Auvergne (UCA). Fondé en 1876 par Émile Alluard sous le nom d'Observatoire du Puy de Dôme, il s'est nommé l'Institut et observatoire de physique du globe (IOPG) de 1921 à 1985.", "roles": [ "host" ], "url": "https://opgc.uca.fr/" } ], "platforms": [ "sentinel-1a", "sentinel-1b" ], "instruments": [ "c-sar" ], "constellation": "sentinel-1", "mission": null, "licenses": "CC-BY-NC-4.0", "sat:platform_international_designator": "2014-016A", "sat:orbit_state": "geostationary", "sat_ext:platform_international_designators": [ "2014-016A", "2016-025A" ], "sar:frequency_band": "C", "sar:center_frequency": 5.405, "sar_ext:wavelength": 0.05546576, "processing:level": "L2", "sci:publications": [ { "citation": "Doin, M.-P., Lodge, F., Guillaso, S., Jolivet, R., Lasserre, C., Ducret, G., Grandin, R., Pathier, E., Pinel, V. (2011). Presentation of the small baseline NSBAS processing chain on a case example: The Etna deformation monitoring from 2003 to 2010 using Envisat data. In Proceedings of FRINGE 2011 ESA Workshop, Frascati, Italy,19–23 September 2011, ESA Publication SP-697.", "doi": "" }, { "citation": "Raphaël Grandin (Institut de Physique du Globe de Paris, France) (2015). \"Interferometric Processing of SLC Sentinel-1 TOPS Data \". In Proceedings of FRINGE’15: Advances in the Science and Applications of SAR Interferometry and Sentinel-1 InSAR Workshop, Frascati, Italy, 23-27 March 2015, Ouwehand L., Ed., ESA Publication SP-731.", "doi": "10.5270/Fringe2015.116" }, { "citation": "Thollard, F., Clesse, D., Doin, M.-P., Donadieu, J., Durand, P., Grandin, R., Lasserre, C., Laurent, C., Deschamps-Ostanciaux, E, Pathier, E., Pointal, E, Proy, C., Specht, B. (2021). FLATSIM: The ForM@Ter LArge-Scale Multi-Temporal Sentinel-1 InterferoMetry Service, Remote Sens. 13 (18), 3734.", "doi": "10.3390/rs13183734" } ], "keywords": [ "radar geometry", "InSAR", "resolution_4looks", "interferograms", "GDM-SAR-In", "unwrapped interferogram", "geostationary", "NSBAS processing chain", "from 2024-11-09 to 2024-11-21" ], "datetime": "2025-01-16T10:20:38Z" }, "links": [ { "rel": "self", "href": "/data2/repository/gdmsarin/e817a8c7-a65d-4855-b2d7-1bc3308861d6/radar_interferogram_20241109_20241121_4rlks_inu_item.json", "type": "application/json" }, { "rel": "cite-as", "href": "https://flatsim.cnes.fr/doi/docs/NSBAS_Etna.pdf" }, { "rel": "cite-as", "href": "https://proceedings.esa.int/files/116.pdf" }, { "rel": "cite-as", "href": "https://www.mdpi.com/2072-4292/13/18/3734" }, { "rel": "license", "href": "https://creativecommons.org/licenses/by-nc/4.0/" }, { "rel": "parent", "href": "./radar_interferogram_collection.json", "type": "application/json", "title": "Interferogram from 20241109 to 20241121" }, { "rel": "collection", "href": "./radar_interferogram_collection.json", "type": "application/json", "title": "Interferogram from 20241109 to 20241121" } ], "assets": { "GDM_InU_radar_20241109_20241121_sd_4rlks.png": { "href": "./assets/GDM_InU_radar_20241109_20241121_sd_4rlks.png", "type": "image/png", "title": "GDM_InU_radar_20241109_20241121_sd_4rlks.png", "description": "# Unwrapped Interferogram\n\n> The product corresponds to the **unwrapped interferogram**.\n>\n> The geotiff file has 2 bands:\n>\n> - band 1 is the filtered unwrapped phase of the interferogram. By default, the filter is a moving averaged, triangular sliding window applied on the wrapped phase (see Doin et al., 2015, for example). By default, unwrapping is done by the method described in Grandin et al., 2012.\n> - band 2 is by default the coherence obtained when the sliding window average has been applied on the wrapped interferogram: it thus quantifies the quality of the filtered phase. It can also be the product of the two image’s amplitudes if other types of filters have been employed.\n>\n> The png file has 1 band:\n>\n> - band 1 is the unwrapped phase difference of the interferogram, normalized by a color palette\n\n[source](https://formater.pages.in2p3.fr/flatsim/products/InU.html)\n", "roles": [ "visual" ] }, "GDM_InU_radar_20241109_20241121_sd_4rlks.tiff": { "href": "./assets/GDM_InU_radar_20241109_20241121_sd_4rlks.tiff", "type": "image/tiff; application=geotiff", "title": "GDM_InU_radar_20241109_20241121_sd_4rlks.tiff", "description": "# Unwrapped Interferogram\n\n> The product corresponds to the **unwrapped interferogram**.\n>\n> The geotiff file has 2 bands:\n>\n> - band 1 is the filtered unwrapped phase of the interferogram. By default, the filter is a moving averaged, triangular sliding window applied on the wrapped phase (see Doin et al., 2015, for example). By default, unwrapping is done by the method described in Grandin et al., 2012.\n> - band 2 is by default the coherence obtained when the sliding window average has been applied on the wrapped interferogram: it thus quantifies the quality of the filtered phase. It can also be the product of the two image’s amplitudes if other types of filters have been employed.\n>\n> The png file has 1 band:\n>\n> - band 1 is the unwrapped phase difference of the interferogram, normalized by a color palette\n\n[source](https://formater.pages.in2p3.fr/flatsim/products/InU.html)\n", "roles": [ "visual" ] }, "download": { "href": "https://formater.osug.fr/download/gdm-sar-permanent/e817a8c7-a65d-4855-b2d7-1bc3308861d6", "type": "text/html", "title": "Download tool", "description": "Link to the download page for the original source product, before STAC conversion.", "roles": [ "metadata" ] }, "documentation": { "href": "https://formater.pages.in2p3.fr/flatsim/product.html", "type": "text/html", "title": "Product description (general for NSBAS, including GDM-SAR-In and FLATSIM)", "description": "Documentation page describing the product names and acronyms, information about the generation of the products, and metadata definitions.", "roles": [ "metadata" ] }, "local_folder": { "href": "http://isdeform.opgc.fr/static/GDMSARIn/e817a8c7-a65d-4855-b2d7-1bc3308861d6", "type": "text/html", "title": "Local folder for this STAC file", "roles": [ "metadata" ] } }, "collection": "e817a8c7-a65d-4855-b2d7-1bc3308861d6_radar_interferogram_20241109_20241121_collection", "breadcrumb": "[Repository](../collection.json) > [e817a8c7-a65d-4855-b2d7-1bc3308861d6](collection.json) > [Radar geometry](radar_collection.json) > [Interferograms](radar_interferogram_collection.json) > [Interferogram from 20241109 to 20241121](radar_interferogram_20241109_20241121_collection.json) > Unwrapped Differential Interferogram", "ingestion_time": "2026-06-01T12:51:17.563383" }