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Ibcao Bathymetry Data

gravimetry 2015-2017 seg

Emodnet Dataset ID (LID)
0000029104
id
10402
Dataset name
gravimetry 2015-2017 seg
File name
20230927/gravimetry-2015-2017-seg-3996.xyz
Data format
xyz (tsv)
File size
358894
Dataset version
4
Seabed source ID (SID)
1491
Seabed data category (TID)
Pre-generated grid — depth value is taken from a pre-generated grid that is based on mixed source data types, e.g. single beam, multibeam, interpolation etc. (code 70)
Included in IBCAO gridding
Yes (code 1)
IBCAO gridding layer weight
1000
Cruise ID
0
Cruise report
https://doi.org/10.3390/rs11020131
Chief scientist
Millan, Romain
Originator centre
National Aeronautics and Space Administration, Oceans Melting Greenland
Data provider
University of California Irvine Department of Earth System Science
Spatial reference system
EPSG:3996
Horizontal resolution
152.027
Abstract
We employ National Aeronautics and Space Administration (NASA)'s Operation IceBridge high-resolution airborne gravity from 2016, NASA's Ocean Melting Greenland bathymetry from 2015, ice thickness from Operation IceBridge from 2010 to 2015, and BedMachine v3 to analyze 20 major southeast Greenland glaciers. The results reveal glacial fjords several hundreds of meters deeper than previously thought; the full extent of the marine-based portions of the glaciers; deep troughs enabling warm, salty Atlantic Water (AW) to reach the glacier fronts and melt them from below; and few shallow sills that limit the access of AW. The new oceanographic and topographic data help to fully resolve the complex pattern of historical ice front positions from the 1930s to 2017: glaciers exposed to AW and resting on retrograde beds have retreated rapidly, while glaciers perched on shallow sills or standing in colder waters or with major sills in the fjords have remained stable.
URL
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL076561
Operator who enters this information
marcus
File creation time
2023-09-27 10:52:59+00
Metadata modification time
2023-10-23 12:25:46.725592+00
Bounding box
POLYGON((-2323093.21915054 -2325653.66329341,-2323093.21915054 -2085177.0546359,-1726147.93176789 -2085177.0546359,-1726147.93176789 -2325653.66329341,-2323093.21915054 -2325653.66329341))
Color
#369fab
preprocess
https://git.bolin.su.se/rez/seabed2030-preprocess/-/blob/master/bedmachine_new_sources.py
Ibcao data status
done

Revisions

Version 4

Mon, 23 Oct 2023 14:25:46 +0200

Updated status to done after final check.

Version 3

Wed, 27 Sep 2023 14:12:02 +0200

Data were cleaned of outliers, metadata was corrected and added, status set to finalising pending final check in grid.

Version 2

Mon, 11 Sep 2023 14:07:28 +0200

Data were added to the grid and weight and gridding resolution were assigned.

Version 1

Fri, 03 Mar 2023 15:33:07 +0100

Data were unzipped from dataset #1255, split into several datasets, each converted from matlab to xyz and transformed from EPSG 3413 to 3996 using pre-processing script
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.