Adhikari, Dilip; Scheider, Annette; Voß, Daniela; Kinne, Stefan (2023): Multibeam bathymetry processed data (Kongsberg EM 122 entire dataset) of RV SONNE during cruise SO267/2, Pacific Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957208
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Published: 2023-04-25 • DOI registered: 2023-05-24
Abstract:
The multibeam echo sounder (MBES) data was collected from the 03.02.2019 (09:44 UTC) to the 13.02.2019 (16:19 UTC) with the Kongsberg EM122 on RV SONNE during the transit from Suva (Fiji) to Manzanillo (Mexico) in the Pacific Ocean. The deep-water MBES EM122 operates with an acoustic frequency of 12 kHz and a beam opening angle of 0.5° x 1°. The raw and unprocessed bathymetric and backscatter data is stored in Kongsberg format (*.all), each containing up to 60 min of data. The therein included time, motion and position data (WGS84, geographic) was measured by the Kongsberg Seapath system on board. During the acquisition the echo sounder was monitored as well as settings and filter adjusted according to the environment. The transit speed was up to 13 knots. The swath opening angle was set to 70° resulting in a swath width of about 15 km in 3,000 m water depth. Further, high density and dual swath mode were used resulting in 2 x 432 beams per ping. As the data was collected during transit, no specific surveys were performed.
No sound velocity profiles (SVPs) were measured during the cruise. In the beginning of data acquisition, an SVP from a previous cruise was used. On the 04.02.2019, a synthetic SVP extracted from he World Ocean Atlas 2009 from NOAA (Levitus, 2013) using the software "Sound Speed Manager" (developed by the UNH Center for Coastal and Ocean Mapping and NOAA Coast Survey Development Laboratory (CSDL)) was applied in the MBES acquisition software SIS. The SVP data is not part of this submission but can be extracted from the *.all files.
The data was post-processed using the software QPS Qimera. No further SVP re-computation, navigation correction or tide correction was applied. Erroneous depth measurements were deleted manually by using the swath and slice editor. The vertical datum is mean sea level (MSL). The cleaned data was exported as bathymetric grids in a resolution of 100 m (geotiff format, projected coordinates WGS84/UTM zone 5S (EPSG: 32705)).
Related to:
Levitus, Sydney: NODC Standard Product: World Ocean Atlas 2009 (NCEI Accession 0094866) [dataset]. NOAA National Centers for Environmental Information, https://accession.nodc.noaa.gov/0094866 (Accessed 01/2019)
Source:
Adhikari, Dilip; Scheider, Annette; Voß, Daniela; Kinne, Stefan (2023): Multibeam bathymetry processed data (Kongsberg EM 122 entire dataset, Generic sensor format) of RV SONNE during cruise SO267/2, Pacific Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957209
Adhikari, Dilip; Scheider, Annette; Voß, Daniela; Kinne, Stefan (2023): Multibeam bathymetry raw data (Kongsberg EM 122 entire dataset) of RV SONNE during cruise SO267/2, Pacific Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957920
Coverage:
Median Latitude: 6.761250 * Median Longitude: -129.520000 * South-bound Latitude: -3.195300 * West-bound Longitude: -151.620000 * North-bound Latitude: 16.717800 * East-bound Longitude: -107.420000
Date/Time Start: 2019-02-03T09:44:02 * Date/Time End: 2019-02-13T16:19:44
Event(s):
SO267/2_0_Underway-1 * Latitude Start: -3.195300 * Longitude Start: -151.620000 * Latitude End: 16.717800 * Longitude End: -107.420000 * Date/Time Start: 2019-02-03T09:44:02 * Date/Time End: 2019-02-13T16:19:44 * O2A Registry URI: https://registry.o2a-data.de/items/7519 * Campaign: SO267/2 (OceanLight) * Basis: Sonne_2 * Method/Device: KONGSBERG EM122 (KEM122) * Comment: Event shows start/end point (date/time & coordinates) of first/last data record using Kongsberg EM 122 multibeam echosounder during cruise SO267/2
Comment:
These data should not be used for navigational purposes.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Adhikari, Dilip | |||
| 2 | Binary Object (Media Type) | Binary (Type) | Adhikari, Dilip | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Adhikari, Dilip | ||
| 4 | Raster cell size | Raster cell size | Adhikari, Dilip | |||
| 5 | File content | Content | Adhikari, Dilip | |||
| 6 | Vertical datum | Vertical datum | Adhikari, Dilip | |||
| 7 | Horizontal datum | Horizontal datum | Adhikari, Dilip | |||
| 8 | Horizontal datum, projection stored in file | Horizontal datum in file | Adhikari, Dilip | |||
| 9 | Longitude, westbound | Longitude west | Adhikari, Dilip | |||
| 10 | Longitude, eastbound | Longitude east | Adhikari, Dilip | |||
| 11 | Latitude, southbound | Latitude south | Adhikari, Dilip | |||
| 12 | Latitude, northbound | Latitude north | Adhikari, Dilip | |||
| 13 | UTM Zone, Universal Transverse Mercator | UTM Zone | Adhikari, Dilip | |||
| 14 | UTM Easting, Universal Transverse Mercator | UTM east | m | Adhikari, Dilip | westbound | |
| 15 | UTM Easting, Universal Transverse Mercator | UTM east | m | Adhikari, Dilip | eastbound | |
| 16 | UTM Northing, Universal Transverse Mercator | UTM north | m | Adhikari, Dilip | southbound | |
| 17 | UTM Northing, Universal Transverse Mercator | UTM north | m | Adhikari, Dilip | northbound | |
| 18 | Elevation, minimum | Elev min | m a.s.l. | Adhikari, Dilip | ||
| 19 | Elevation, maximum | Elev max | m a.s.l. | Adhikari, Dilip |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
187 data points