ATLAS/ICESat-2 L3A Sea Ice Freeboard, Version 3
Data set id:
ATL10
DOI: 10.5067/ATLAS/ATL10.003
There is a more recent version of these data.
Version Summary
Version Summary
Changes for this version include:
- Added additional freeboard browse images to allow for better qualitative assessment of the product.
- Fixed a bug that was producing not-a-number (NaN) freeboard values in ATL10 products.
- Implemented a flag to identify which designated sea surface height (SSH) segments were used to compute reference surfaces.
- Improved the description of freeboard height in the file metadata.
- Added a filter prior to sea ice processing that sets upper and lower limits before determining the reference surface. This approach removes outliers that are unreasonable, relative to sea surface height. Separate bounds are used for the Arctic and Antarctic to account for geographic and seasonal dependencies.
Overview
This data set (ATL10) contains estimates of sea ice freeboard, calculated using three different approaches. Sea ice leads used to establish the reference sea surface and descriptive statistics used in the height estimates are also provided. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory.
Parameter(s):
FREEBOARD
Platform(s):
ICESat-2
Sensor(s):
ATLAS
Data Format(s):
HDF5
Temporal Coverage:
- 14 October 2018 to 11 November 2020
Temporal Resolution:
- 91 day
Spatial Resolution:
- Not Specified
Spatial Reference System(s):
- WGS 84EPSG:4326
Spatial Coverage:
- N:90S:-90E:180W:-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 short article describes the customization services available for ICESat-2 data using Earthdata Search.
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:
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.
Learn the basic steps for using OpenAltimetry to browse and download ICESat-2 data products.
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.