
ATLAS/ICESat-2 L3A Along Track Coastal and Nearshore Bathymetry, Version 2
Data set id:
ATL24
DOI: 10.5067/ATLAS/ATL24.002
This is the most recent version of these data.
Version Summary
Version Summary
An additional density-based algorithm was run on all candidate bathymetry photons to determine a final classification; The “profile” and “stats” variables under the “/metadata” group were removed because they are not relevant to v2; An “atl24” variable under the “/metadata” group was added to capture the specific versioning information related to the new algorithm. This new variable will be used going forward to precisely capture the versioning information of the algorithms that are run; A “DatasetIdentification” subgroup was added to the “/metadata” group.
Overview
ATL24 provides global along-track coastal and nearshore bathymetry, consisting of refraction-corrected seafloor and sea surface heights (orthometric and ellipsoidal heights and instantaneous depths), as well as associated uncertainties. The data are derived from ATLAS/ICESat-2 L2A Global Geolocated Photon Data (ATL03).
Parameter(s):
COASTAL BATHYMETRY
SEA SURFACE HEIGHT
Platform(s):
ICESat-2
Sensor(s):
ATLAS
Data Format(s):
HDF5
Temporal Coverage:
- 14 October 2018 to present
Temporal Resolution:
- Varies
Spatial Resolution:
- Not Specified
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
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
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:
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.