de.pangaea.dataset942457 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-04-29T19:01:19Z https://doi.pangaea.de/10.1594/PANGAEA.942457 2022-03-17T16:18:51 publication https://doi.org/10.1594/PANGAEA.942457 Betzler, Christian

christian.betzler@uni-hamburg.de

https://orcid.org/0000-0002-5757-4553 information author Fürstenau, Jörn author Hübscher, Christian

christian.huebscher@uni-hamburg.de

https://orcid.org/0000-0001-7380-2344 information author Jaramillo-Vogel, David

david.jaramillo@particle-vision.ch

author Lindhorst, Sebastian

sebastian.lindhorst@uni-hamburg.de

https://orcid.org/0000-0001-9615-4167 information author Römer, Miriam

mroemer@marum.de

https://orcid.org/0000-0003-2540-9286 information author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital Multibeam bathymetry raw data using the ship's own Kongsberg (Simrad) EM 120 multibeam echosounder was not continuously recorded during RV METEOR cruise M74/4. Data was recorded on 15 days between 2007-11-30 and 2007-12-14. This dataset contains a survey at the islands of the Maldives. The approximate average depth of the entire dataset is around 700m. The data are archived at the Federal Maritime and Hydrographic Agency of Germany (Bundesamt für Seeschifffahrt und Hydrographie, BSH) and provided to PANGAEA database for data curation and publication. Ancillary sound velocity profiles (SVP) files from the cruise are not archived at the BSH, thus no SVP files are added to this dataset. However, data analysis of the multibeam raw data revealed that SVP has been changed several times during the survey. This publication is conducted within the efforts of the German Marine Research Alliance in the core area "Data management and Digitalization" (Deutsche Allianz Meeresforschung, DAM). Data are unprocessed and therefore contains incorrect depth measurements (artifacts) without further processing. Overall, it appears that the data quality is rather good to moderate since the gridded hillshade data showed relatively few obstacles. It appears, that the Kongsberg EM 710 multibeam echosounder was simultaneously running during data acquisition since the coverage is nearly the same (https://doi.org/10.1594/PANGAEA.942458). However this did not significantly affecting data quality (nevertheless, based on the data, whether a direct interference between both system exists is unknown). Data can be processed e.g. with the open source software package MB-System (Caress, D. W., and D. N. Chayes, MB-System: Mapping the Seafloor, http://www.mbari.org/products/research-software/mb-system/, 2022). completed Betzler, Christian

christian.betzler@uni-hamburg.de

https://orcid.org/0000-0002-5757-4553 information principalInvestigator Bathymetry Multibeam Echosounder theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact DAM_Underway DAM Underway Research Data DataHub DataHub Earth and Environment of the Helmholtz Association theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 72.6159129 73.5762658 3.910191 5.13181235 2007-11-30T04:30:52 2007-12-14T04:05:39 -2352.12 0.54 These data should not be used for navigational purposes. Data publishing was realized by Daniel Damaske, MARUM - Center for Marine Environmental Sciences (University Bremen). Binary Object thematicClassification Binary Object (Media Type) thematicClassification Binary Object (File Size) physicalMeasurement Bytes Bytes Kongsberg datagram raw file name thematicClassification File content thematicClassification Data file recording duration physicalMeasurement min min Data file recording distance physicalMeasurement m m Ship speed physicalMeasurement kn kn Number of pings thematicClassification Start of data file recording, date/time thematicClassification Start of data file recording, latitude thematicClassification Start of data file recording, longitude thematicClassification Start of data file, heading physicalMeasurement deg deg Start of data file, depth physicalMeasurement m m Stop of data file recording, date/time thematicClassification Stop of data file recording, latitude thematicClassification Stop of data file recording, longitude thematicClassification Stop of data file, heading physicalMeasurement deg deg Stop of data file, depth physicalMeasurement m m DATE/TIME thematicClassification 'copy of Start of data file recording, date/time LATITUDE thematicClassification copy of 'Start of data file recording, latitude LONGITUDE thematicClassification copy of 'Start of data file recording, longitude ELEVATION physicalMeasurement copy of 'File start depth, change of sign m a.s.l. m a.s.l. Comment thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.942457?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: M74/4_0_Underway-1 * LATITUDE START: 4.189798 * LONGITUDE START: 73.498731 * LATITUDE END: 4.156232 * LONGITUDE END: 73.511409 * DATE/TIME START: 2007-11-30T04:30:52 * DATE/TIME END: 2007-12-14T04:35:32 * CAMPAIGN: M74/4 * BASIS: Meteor (1986) * METHOD/DEVICE: Swath-mapping system Simrad EM-120 (Kongsberg Maritime AS) Event shows start/end point (date/time & coordinates) of first/last data record using Kongsberg (Simrad) EM 120 multibeam echosounder during cruise M74/4 2007-11-30T04:30:52