ATLAS/ICESat-2 L2A Global Geolocated Photon Data Low Latency, Version 7
Data set id:
ATL03LL
DOI: 10.5067/ATLAS/ATL03LL.007
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
ATL03 Low Latency (ATL03LL) is an expedited version of ATL03, where the data acquisition and algorithm are the same, but the geolocation processing has been adjusted to provide a more readily available product. The files will be available for 180 days, overlapping the final files. ATL03LL contains height above the WGS 84 ellipsoid, latitude, longitude, and time for each photon downlinked by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board ICESat-2.
Parameter(s):
TERRAIN ELEVATION
Platform(s):
ICESat-2
Sensor(s):
ATLAS
Data Format(s):
HDF5
Temporal Coverage:
- 31 March 2026 to present
Temporal Resolution:
- 91 day
Spatial Resolution:
- 0.7 m
- 0.7 m
Spatial Reference System(s):
- WGS 84EPSG:4326
Spatial Coverage:
- Northern latitude88Southern latitude-88Eastern longitude180Western longitude-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.
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:
To convert HDF5 files into binary format you will need to use the h5dump utility, which is part of the HDF5 distribution available from the HDF Group. How you install HDF5 depends on your operating system.
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.