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Canadian National Marine Seismic Data Repository The Geological Survey of Canada (Atlantic and Pacific) has collected marine survey field records on marine expeditions for over 50 years. This release makes available the results of an ongoing effort to scan and convert our inventory of analog marine survey field records (seismic, sidescan and sounder) to digital format. These records were scanned at 300 dpi and converted into JPEG2000 format. Typically, each of these files was between 1 to 2 gbyte in size before compression and compressed by a factor of 10:1. Empirical tests with a number of data sets suggest that there is minimal visual distortion of the scanned data at this level of compression. In this KML file, scanned data are available in a reduced-scale thumbnail format and a compressed full-resolution JPEG2000 format. undefined/Present dataset; jeuDonnées geophysics geology marine earth sciences seismic sidescan sonar high resolution geographic information system sub-bottom sounder Geology Geophysics Ocean floor Seismology en,fr Canadian National Marine Seismic Data Repository - French Répertoire de données sismiques maritimes nationales - français https://maps-cartes.services.geo.ca/server_serveur/rest/services/NRCan/CGC_Imagerie_Sismique/MapServeren,fr Canadian National Marine Seismic Data Repository - English Répertoire de données sismiques maritimes nationales - anglais https://maps-cartes.services.geo.ca/server_serveur/rest/services/NRCan/GSC_Seismic_Reflection/MapServeren,fr Canadian National Marine Seismic Data Repository - English Répertoire de données sismiques maritimes nationales - anglais https://ftp.maps.canada.ca/pub/nrcan_rncan/Seismology_Sismologie/Seismic_Reflection-Imagerie_Sismique/GSC_Seismic_Reflection.gdb.zipen,fr Canadian National Marine Seismic Data Repository - French Répertoire de données sismiques maritimes nationales - français https://ftp.maps.canada.ca/pub/nrcan_rncan/Seismology_Sismologie/Seismic_Reflection-Imagerie_Sismique/CGC_Imagerie_Sismique.gdb.zipen,fr Canadian National Marine Seismic Data Repository - English Répertoire de données sismiques maritimes nationales - anglais https://maps-cartes.services.geo.ca/server_serveur/services/NRCan/GSC_Seismic_Reflection/MapServer/WMSServer?service=WMS&version=1.3.0&request=GetCapabilitiesen,fr Canadian National Marine Seismic Data Repository - French Répertoire de données sismiques maritimes nationales - français https://maps-cartes.services.geo.ca/server_serveur/services/NRCan/CGC_Imagerie_Sismique/MapServer/WMSServer?service=WMS&version=1.3.0&request=GetCapabilities

Government Of Canada Geo.ca Data Catalog. Dataset Boundary [ undefined This catalog contains open datasets available on the Geo.ca platform. en-CA

Canadian National Marine Seismic Data Repository

The Geological Survey of Canada (Atlantic and Pacific) has collected marine survey field records on marine expeditions for over 50 years. This release makes available the results of an ongoing effort to scan and convert our inventory of analog marine survey field records (seismic, sidescan and sounder) to digital format. These records were scanned at 300 dpi and converted into JPEG2000 format. Typically, each of these files was between 1 to 2 gbyte in size before compression and compressed by a factor of 10:1. Empirical tests with a number of data sets suggest that there is minimal visual distortion of the scanned data at this level of compression. In this KML file, scanned data are available in a reduced-scale thumbnail format and a compressed full-resolution JPEG2000 format.