ATLAS/ICESat-2 L3B Daily and Monthly Gridded Polar Sea Surface Height Anomaly, Version 4
Data set id:
ATL21
DOI: 10.5067/ATLAS/ATL21.004
This is the most recent version of these data.
Version Summary
Version Summary
Updated the attribute grid mapping and CRS variable to improve NetCDF compliance.
Overview
ATL21 contains daily and monthly gridded polar sea surface height anomalies, derived from ATLAS/ICESat-2 L3A Sea Ice Freeboard (ATL10) along-track freeboard estimates.
Parameter(s):
SEA SURFACE HEIGHT ANOMALY (SSHA)
Platform(s):
ICESat-2
Sensor(s):
ATLAS
Data Format(s):
HDF5
Temporal Coverage:
- 14 October 2018 to present
Temporal Resolution:
- 1 month
- 1 day
Spatial Resolution:
- 25 km
- 25 km
Spatial Reference System(s):
- NSIDC Sea Ice Polar Stereographic NorthEPSG:3411
- NSIDC Sea Ice Polar Stereographic SouthEPSG:3412
Spatial Coverage:
- N:89S:37E:180W:-180
- N:-53S:-79E:180W:-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
Data Access & Tools
A free NASA Earthdata Login account is required to access these data. Learn More
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
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.
This article highlights the NSIDC DAAC data sets available with customization options and outlines a workflow for searching, ordering, and customizing data in NASA Earthdata Search. This approach is ideal for users who want to download data to their local machine.