ATLAS/ICESat-2 L3B Gridded Antarctic and Arctic Land Ice Height, Version 2
Data set id:
ATL14
DOI: 10.5067/ATLAS/ATL14.002
There is a more recent version of these data.
Version Summary
Version Summary
The changes from Versions 1 to 2 include the following:
- Extend temporal coverage through cycle 14
- Include one independent bias parameter for each RGT, cycle, and beam pair in the bias model
- In all regions except Antarctica, use minimum error estimate for every unique crossover
- Apply a time-variable ice mask, as reflected in the ice_area variable
- Achieve tile-to-tile matching using linear constraint at tile edges
- Decrease computation tile size to 61x61 km, and compute tiles in two stages instead of three
Overview
This data set (ATL14) and ATL15 bring the time-varying height estimates provided in ATLAS/ICESat-2 L3B Annual Land Ice Height (ATL11) into a gridded format. ATL14 is a high-resolution (100 m) digital elevation model (DEM) that provides spatially continuous gridded data of ice sheet surface height. The data can be used to initialize ice sheet models, as boundary conditions for atmospheric models, or to help with the reduction of other satellite data such as optical imagery or synthetic aperture radar (SAR).
ATL15 provides coarser resolution (1 km, 10 km, 20 km, and 40 km) height-change maps at 3-month intervals, allowing for visualization of height-change patterns and calculation of integrated regional volume change.
Parameter(s):
GLACIER ELEVATION/ICE SHEET ELEVATION
Platform(s):
ICESat-2
Sensor(s):
ATLAS
Data Format(s):
netCDF-4
Temporal Coverage:
29 March 2019 to 23 March 2022
Temporal Resolution:
- Not applicable
Spatial Resolution:
- 100 m
- 100 m
Spatial Reference System(s):
WGS 84 / Antarctic Polar Stereographic
EPSG:3031
WGS 84 / NSIDC Sea Ice Polar Stereographic North
EPSG:3413
Spatial Coverage:
N:
-60
S:
-90
E:
180
W:
-180
N:
90
S:
59
E:
180
W:
-180
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.
Documentation
User Guide
ATBDs
General Resources
Product Specification Documents
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.
This short article describes the customization services available for ICESat-2 data using Earthdata Search.
How to Articles
Harmony API Quickstart Guide: Customizing NASA NSIDC DAAC data in Earthdata Cloud
The NASA Earthdata Cloud is the NASA cloud-based archive of Earth observations. It is hosted by Amazon Web Services (AWS). Learn how to find and access NSIDC DAAC data directly in the cloud.