Ibcao Bathymetry Data

gravimetry 2015-2017 seg

Emodnet Dataset ID (LID)

0000029101

id

9787

Dataset name

gravimetry 2015-2017 seg

File name

20230303/gravimetry-2015-2017-seg-3996.xyz

Data format

xyz (tsv)

File size

459014

Dataset version

1

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

No (code 0)

Cruise ID

0

Chief scientist

Millan, Romain

Data provider

University of California Irvine Department of Earth System Science

Spatial reference system

EPSG:3996

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

silvia

File creation time

2021-03-05 12:05:57+00

Metadata modification time

2023-03-03 14:33:07.504883+00

preprocess

https://git.bolin.su.se/rez/seabed2030-preprocess/-/blob/master/bedmachine_new_sources.py

Ibcao data status

upcoming

‹ ›

‹ › ×