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Ibcao Bathymetry Data

cage 18-4 2018

Emodnet Dataset ID (LID)
0000016604
id
9945
Dataset name
cage 18-4 2018
File name
20230404/cage-18_4-2018-300m-3996.xyz
Data format
xyz (tsv)
File size
184338
Dataset version
4
Seabed source ID (SID)
1442
Seabed data category (TID)
Multibeam — depth value collected by a multibeam echo-sounder (code 11)
Included in IBCAO gridding
Yes (code 1)
IBCAO gridding layer weight
500
Cruise name
CAGE18-4
Cruise ID
0
Cruise report
https://cage.uit.no/wp-content/uploads/2019/10/cage18-4-cruise-report-final.pdf
Chief scientist
Bünz, Stefan
Start date
2018-07-19
End date
2018-08-07
Date format
Only date, no time (code Y-m-d)
From harbour
Longyearbyen, Svalbard
To harbour
Longyearbyen, Svalbard
Originator centre
Arctic University of Norway
Data provider
Arctic University of Norway
Platform class
research vessel
Station name
RV Helmer Hanssen
Station id
LAHV
Instrument
multi-beam echosounders
Instrument specified
Kongsberg EM302
Positioning system type
GPS
Spatial reference system
EPSG:3996
Vertical datum
mean sea level
Horizontal resolution
200.63
IBCAO gridding Remove and Restore resolution
300
Horizontal quality index
2
Abstract
Cruise CAGE18-4 with UiT’s research vessel R/V Helmer Hanssen was carried out to collect cross-disciplinary data for addressing the objectives of the Norwegian Centre of Excellence for Arctic Gas Hydrate, Environment and Climate, CAGE. The cruise was split into two legs with a port call in Longyearbyen. Leg 1 targeted the Vestnesa Ridge on the western Svalbard margin and acquired 2D and 3D high-resolution P-Cable seismic data in close proximity to the Molloy Ridge in order to better understand tectonic impacts on fluid flow and gas hydrate accumulations. Leg 2 continued our investigations of the newly discovered gas seepage field in the Leierdjupet Fault complex (see CAGE17-3 cruise report) focusing on a better understanding of its complex leakage and source-to-sink plumbing system using seafloor photo and video imagery, water and sediment sampling, multibeam mapping and hydro acoustics.
URL
https://cage.uit.no/cruise/cage-cruise-18-4/
Operator who enters this information
marcus
File creation time
2023-04-04 07:36:16+00
Metadata modification time
2023-04-04 08:23:07.399425+00
Bounding box
POLYGON((784091.285 -1614147.744,784091.285 -1554977.188,821271.412 -1554977.188,821271.412 -1614147.744,784091.285 -1614147.744))
Color
#a38dd6
Ibcao data status
done
Processing status
Final check, otherwise done.

Revisions

Version 6

Tue, 19 Sep 2023 12:33:28 +0200

Updated status to inactive.

Version 5

Wed, 31 May 2023 10:58:00 +0200

Removed from gridding again due to depth offset issue, checking if correction is possible.

Version 4

Tue, 04 Apr 2023 10:23:07 +0200

Added back into gridding after converting to correct resolution (300 m) in Qimera. Updated metadata (originator, provider, filesize, filename, weight, in_gridding, gridding_resolution).

Version 3

Tue, 21 Mar 2023 13:54:36 +0100

Removed from gridding due to incorrect dataset resolution.

Version 2

Mon, 13 Mar 2023 10:38:05 +0100

Data were cleaned of majority of outliers in Qimera and added to gridding. Updated or added metadata (name, filename, cruise_name, harbour_from, harbour_to, platform_class, srs, abstract, filesize, in_gridding, weight, gridding_resolution, qi_horizontal, url)

Version 1

Thu, 19 Jan 2023 14:52:51 +0100

Provided by the public web interface
Knut and Alice Wallenberg Foundation (KAW) and Swedish Research Council (VR) financed the Oden multibeam system and the installation was financed by the Swedish Maritime Administration. The Oden expeditions were organized by the Swedish Polar Research Secretariat. This Mapping Repository is a part of the Bert Bolin Centre for Climate Research data archive.