Academic Journal
View in EDS

Evaluation and combination of multi-sensor shipborne gravity surveys in the German exclusive economic zone of the North Sea.

Bibliographic Details
Title: Evaluation and combination of multi-sensor shipborne gravity surveys in the German exclusive economic zone of the North Sea.
Authors: Johann, Felix1 (AUTHOR), Knappe, Sebastian2 (AUTHOR), Liebsch, Gunter2 (AUTHOR), Förste, Christoph3 (AUTHOR), Schwabe, Joachim2 (AUTHOR) joachim.schwabe@bkg.bund.de, Ince, E. Sinem3 (AUTHOR), Bauer, Tobias Peter2 (AUTHOR), Schröder, Ludwig2 (AUTHOR), Westfeld, Patrick4 (AUTHOR)
Source: Marine Geodesy. Aug2026, p1-22. 22p. 14 Illustrations.
Subject Terms: *Gravimetry, *Gravimeters (Geophysical instruments)
Geographic Terms: North Sea
Abstract: AbstractBetween 2015 and 2024, a series of five shipborne gravimetry campaigns was conducted within the German exclusive economic zone of the North Sea and adjacent waters. The goal was to obtain an accurate, consistent and properly 3D geo-referenced gravity dataset in the area. This shall serve to compute the marine geoid as the official height reference surface in the German territorial waters, and to validate and calibrate less accurate and reliable historical shipborne gravity data available in the area. The measurement conditions were challenging with cruises lasting up to 78 h and varying sea state conditions. Thus, to ensure the required quality of the measurements in terms of fail-safety and external accuracy, a redundant set of up to four gravimeters of three different types were installed: gyro-stabilized platform spring gravimeter Chekan-AM and strapdown gravimeters iMAR iNAV-RQH-1003 and iMAR iCORUS-02. The gravimeter results are combined to obtain gravity disturbances with optimized accuracy along the trajectories of the nineteen cruises. Furthermore, a novel vehicle oscillation correction is introduced for the iNAV gravimeter that improves its accuracy by 67 to 82%. Following the implementation of a line-wise crossover leveling, an RMSE of 0.21 mGal is obtained for the combined results. [ABSTRACT FROM AUTHOR]
Database: Academic Search Index
FullText Text:
  Availability: 0
Header DbId: asx
DbLabel: Academic Search Index
An: 196923245
RelevancyScore: 1452
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 1452.42541503906
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Evaluation and combination of multi-sensor shipborne gravity surveys in the German exclusive economic zone of the North Sea.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Johann%2C+Felix%22">Johann, Felix</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Knappe%2C+Sebastian%22">Knappe, Sebastian</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liebsch%2C+Gunter%22">Liebsch, Gunter</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Förste%2C+Christoph%22">Förste, Christoph</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schwabe%2C+Joachim%22">Schwabe, Joachim</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> joachim.schwabe@bkg.bund.de</i><br /><searchLink fieldCode="AR" term="%22Ince%2C+E%2E+Sinem%22">Ince, E. Sinem</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bauer%2C+Tobias+Peter%22">Bauer, Tobias Peter</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schröder%2C+Ludwig%22">Schröder, Ludwig</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Westfeld%2C+Patrick%22">Westfeld, Patrick</searchLink><relatesTo>4</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Marine+Geodesy%22">Marine Geodesy</searchLink>. Aug2026, p1-22. 22p. 14 Illustrations.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Gravimetry%22">Gravimetry</searchLink><br />*<searchLink fieldCode="DE" term="%22Gravimeters+%28Geophysical+instruments%29%22">Gravimeters (Geophysical instruments)</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22North+Sea%22">North Sea</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: AbstractBetween 2015 and 2024, a series of five shipborne gravimetry campaigns was conducted within the German exclusive economic zone of the North Sea and adjacent waters. The goal was to obtain an accurate, consistent and properly 3D geo-referenced gravity dataset in the area. This shall serve to compute the marine geoid as the official height reference surface in the German territorial waters, and to validate and calibrate less accurate and reliable historical shipborne gravity data available in the area. The measurement conditions were challenging with cruises lasting up to 78 h and varying sea state conditions. Thus, to ensure the required quality of the measurements in terms of fail-safety and external accuracy, a redundant set of up to four gravimeters of three different types were installed: gyro-stabilized platform spring gravimeter Chekan-AM and strapdown gravimeters iMAR iNAV-RQH-1003 and iMAR iCORUS-02. The gravimeter results are combined to obtain gravity disturbances with optimized accuracy along the trajectories of the nineteen cruises. Furthermore, a novel vehicle oscillation correction is introduced for the iNAV gravimeter that improves its accuracy by 67 to 82%. Following the implementation of a line-wise crossover leveling, an RMSE of 0.21 mGal is obtained for the combined results. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asx&AN=196923245
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/01490419.2026.2726371
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 22
        StartPage: 1
    Subjects:
      – SubjectFull: North Sea
        Type: general
      – SubjectFull: Gravimetry
        Type: general
      – SubjectFull: Gravimeters (Geophysical instruments)
        Type: general
    Titles:
      – TitleFull: Evaluation and combination of multi-sensor shipborne gravity surveys in the German exclusive economic zone of the North Sea.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Johann, Felix
      – PersonEntity:
          Name:
            NameFull: Knappe, Sebastian
      – PersonEntity:
          Name:
            NameFull: Liebsch, Gunter
      – PersonEntity:
          Name:
            NameFull: Förste, Christoph
      – PersonEntity:
          Name:
            NameFull: Schwabe, Joachim
      – PersonEntity:
          Name:
            NameFull: Ince, E. Sinem
      – PersonEntity:
          Name:
            NameFull: Bauer, Tobias Peter
      – PersonEntity:
          Name:
            NameFull: Schröder, Ludwig
      – PersonEntity:
          Name:
            NameFull: Westfeld, Patrick
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 29
              M: 08
              Text: Aug2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 01490419
          Titles:
            – TitleFull: Marine Geodesy
              Type: main
ResultId 1