• NSIDC DAAC is currently upgrading our data ingest process for NASA Earthdata Cloud. During this transition, users may notice temporary interruptions in data availability or notice small data gaps. All gaps will be resolved as quickly as possible. During this upgrade jpeg browse imagery will also not be available for preview in Earthdata search. Please reach out to NSIDC User Services with any questions or concerns.

  • On Wednesday, September 24 from 9:00 a.m. to 1:30 p.m. (US Mountain Time), this data set may not be available in the legacy data archive due to a planned system maintenance. Earthdata Cloud access will remain available for data sets that have migrated. Users of the SMAP near real-time products should use the NASA LANCE HTTPS File System for data access.

  • The NSIDC DAAC is retiring access to its legacy, on-premises data archive and transitioning to the NASA Earthdata Cloud as the primary data archive. View planned retirement dates here.

IceBridge BedMachine Greenland, Version 4
Data set id:
IDBMG4
DOI: 10.5067/VLJ5YXKCNGXO
There is a more recent version of these data.
Version Summary
New major version

Overview

This data set contains a bed topography/bathymetry map of Greenland based on mass conservation, multi-beam data, and other techniques. It also includes surface elevation and ice thickness data, as well as an ice/ocean/land mask.
Parameter(s):
BATHYMETRY
BED ELEVATION
GLACIER/ICE SHEET THICKNESS
Surface Elevation
Platform(s):
DC-8
P-3B
Sensor(s):
MCoRDS
Data Format(s):
netCDF-4
Temporal Coverage:
  • 1 January 1993 to 1 October 2020
Temporal Resolution:
Not Specified
Spatial Resolution:
  • 150 m
  • 150 m
Spatial Reference System(s):
  • WGS 84 / NSIDC Sea Ice Polar Stereographic North
    EPSG:3413
Spatial Coverage:
  • N:
    90
    S:
    60
    E:
    10
    W:
    -80
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

Data Access & Tools

This data set has been retired. There is a more recent version of these data.

Help Articles

General Questions & FAQs

This article covers frequently asked questions about the NASA NSIDC DAAC's Earthdata cloud migration project and what it means to data users.
The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is migrating its primary data access from its legacy, on-premises archive to the NASA Earthdata Cloud.

How to Articles

Many NSIDC DAAC data sets can be accessed using NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to:
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system. We provide basic command line Wget and curl instructions for HTTPS file system downloads below.