Airborne electromagnetic, magnetic, and radiometric surveys at the German North Sea coast applied to groundwater and soil investigations

dc.bibliographicCitation.firstPage1629eng
dc.bibliographicCitation.issue10eng
dc.bibliographicCitation.journalTitleRemote sensingeng
dc.bibliographicCitation.volume12eng
dc.contributor.authorSiemon, Bernhard
dc.contributor.authorIbs-von Seht, Malte
dc.contributor.authorSteuer, Annika
dc.contributor.authorDeus, Nico
dc.contributor.authorWiederhold, Helga
dc.date.accessioned2021-12-15T06:06:32Z
dc.date.available2021-12-15T06:06:32Z
dc.date.issued2020
dc.description.abstractThe knowledge of the subsurface down to about one hundred meters is fundamental for a variety of economic, ecological, and geoscientific tasks, particularly in coastal zones. Marine and terrestrial processes influence coastal zones and both seawater intrusion and submarine freshwater discharges may occur. The Federal Institute for Geosciences and Natural Resources (BGR) conducted airborne geophysical surveys in the coastal region of the German Bight between 2000 and 2014. The helicopter-borne system used simultaneously collected electromagnetic (HEM), magnetic (HMG), and radiometric (HRD) data. An area of about 5900 km2 was covered with parallel flight lines at 250 m line separation and additional tie-lines at larger separations. In total, about 25,000 km of data at sampling distances of 4 m (HEM, HMG) and 40 m (HRD) were acquired. The electrical resistivity (HEM), the anomalies of the magnetic field (HMG), and the exposure rate (HRD) are the resulting geophysical parameters derived from the data. The results are displayed as maps of the geophysical parameters as well as vertical resistivity sections (only HEM). Both data and products are publicly available via BGR’s product center. The airborne geophysical results helped to outline the fresh–saline groundwater interface, freshwater lenses on islands, submarine groundwater discharges, buried tunnel valleys, mires, and ancient landscapes.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/7746
dc.identifier.urihttps://doi.org/10.34657/6793
dc.language.isoengeng
dc.publisherBasel : MDPIeng
dc.relation.doihttps://doi.org/10.3390/rs12101629
dc.relation.essn2072-4292
dc.rights.licenseCC BY 4.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/eng
dc.subject.ddc620eng
dc.subject.otherAirborne electromagneticseng
dc.subject.otherAirborne magneticseng
dc.subject.otherAirborne radiometricseng
dc.subject.otherFresh-saline groundwater interfaceeng
dc.subject.otherFreshwater lenseseng
dc.subject.otherGroundwatereng
dc.subject.otherPeatlandseng
dc.subject.otherSaltwater intrusioneng
dc.subject.otherSoileng
dc.titleAirborne electromagnetic, magnetic, and radiometric surveys at the German North Sea coast applied to groundwater and soil investigationseng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccesseng
wgl.contributorLIAGeng
wgl.subjectIngenieurwissenschafteneng
wgl.typeZeitschriftenartikeleng
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