d9f9a559-d752-48b1-8eed-561ee1ce2a19 Geological Survey of Finland geodata@gtk.fi 2024-02-19T13:54:50 EPSG:3067 EPSG:4326 Seabed remote sensing 2022-09-01 http://paikkatiedot.fi/so/ The data compiles seabed remote sensing situation since the 1960s. The data includes spatial data and metadata related to each survey line, mainly based on the data produced by the Geological Survey of Finland Methods based on acoustic-seismic soundings provide an illustrative picture of seabed topography, the thickness and internal structures of sediment units, and bottom conditions. A significant advantage of sonar methods is that they have much higher coverage than more traditional sampling. Sediment sampling provides information from a single point, whereas sonar methods provide uninterrupted regional knowledge, profile of the seabed conditions. There is a particular need for sounding information when planning marine utilization, such as marine sand retrieval, dredge-spoil dumping, or building structures on the seafloor. MarineFinland.fi -portal EMODnet Geology -portal Geological Survey of Finland Vuorimiehentie 5 Espoo 02152 Finland geodata@gtk.fi Marine Geology Finland Baltic Sea marine geology seabed, seafloor mapping sediments substrates remote sensing Maritime Spatial Planning Not-Inspire Paikkatietohakemiston asiasanasto 2010-02-03 geonetwork.thesaurus.external.theme.asiasanasto Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.inspire-theme Attribution 4.0 International (CC BY 4.0) no limitations to public access planningCadastre 17.32566329 28.58672881 58.45414258 65.74026764 ESRI Shapefile https://hakku.gtk.fi/en/locations/search?location_id=218 WWW:LINK-1.0-http--link https://gtkdata.gtk.fi/Maankamara/index.html WWW:LINK-1.0-http--link https://gtkdata.gtk.fi/arcgis/services/Rajapinnat/GTK_Maapera_WMS/MapServer/WMSServer?&service=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image/png&TRANSPARENT=true&LAYERS=Merenpohjan_luotauslinjat6011165047&CRS=EPSG:3067&STYLES=&WIDTH=400&HEIGHT=600&BBOX=61600,6541100,543000,7350300 OGC:WMS-1.3.0-http-get-capabilities https://gtkdata.gtk.fi/arcgis/services/Rajapinnat/GTK_Maapera_WFS/MapServer/WFSServer? OGC:WFS KOMISSION ASETUS (EU) N:o 1089/2010, annettu 23 päivänä marraskuuta 2010, Euroopan parlamentin ja neuvoston direktiivin 2007/2/EY täytäntöönpanosta paikkatietoaineistojen ja -palvelujen yhteentoimivuuden osalta 2010-11-23 Aineisto ei ole INSPIRE-tietotuotemäärittelyn mukainen. false The most common marine geological survey methods are sediment echo sounding, multibeam sonar, side-scan sonar and seismic reflection profiling, each with their specific purpose. The sounding data were initially interpreted from plotter prints of sounding equipment, from which the geological interfaces were interpreted and digitized into files. The digital data collection system was introduced in 1995. The post-processing and interpretation of the sounding data has been implemented since the 21st century using Meridata's MDPS post-processing software. MDPS is data processing and interpretation software that can interpret data from many different devices and view values measured at different frequencies simultaneously. The data from sounding devices are combined with spatial data and stored simultaneously using Meridata's MDCS data collection software, which integrates a coherent ensemble of the measurement devices. This facilitates the comparison and interpretation of the datasets. Data on seabed substrates verified by sampling have been used as to assist in interpretation. The most common marine geological survey methods are sediment echo sounding, multibeam sonar, side-scan sonar and seismic reflection profiling, each with their specific purpose. The sounding data were initially interpreted from plotter prints of sounding equipment, from which the geological interfaces were interpreted and digitized into files. The digital data collection system was introduced in 1995. The post-processing and interpretation of the sounding data has been implemented since the 21st century using Meridata's MDPS post-processing software. MDPS is data processing and interpretation software that can interpret data from many different devices and view values measured at different frequencies simultaneously. The data from sounding devices are combined with spatial data and stored simultaneously using Meridata's MDCS data collection software, which integrates a coherent ensemble of the measurement devices. This facilitates the comparison and interpretation of the datasets. Data on seabed substrates verified by sampling have been used as to assist in interpretation. Methods based on acoustic-seismic soundings provide an illustrative picture of seabed topography, the thickness and internal structures of sediment units, and bottom conditions. A significant advantage of sonar methods is that they have much higher coverage than more traditional sampling. Sediment sampling provides information from a single point, whereas sonar methods provide uninterrupted regional knowledge, profile of the seabed conditions. There is a particular need for sounding information when planning marine utilization, such as marine sand retrieval, dredge-spoil dumping, or building structures on the seafloor. 2024-02-01T00:00:00