• The ICESat-2 Quick Look data sets are currently experiencing delays beyond the nominal 3-day latency. Issues at two ground stations are causing the delay and possible permanent data gaps. EDOS is actively working to resume nominal operations. We apologize for any inconvenience.

  • Beginning 25 May 2023, the sea ice concentration data product used in processing ATL07QL V6 and ATL10QL V6 was switched to Near-Real-Time NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration.

ATLAS/ICESat-2 L3A Sea Ice Height Quick Look, Version 6
Data set id:
ATL07QL
DOI: 10.5067/ATLAS/ATL07QL.006
This is the most recent version of these data.
Version Summary
Changes for Version 6 include:

  • Added new uncorrected sea ice segment height parameter

  • Implemented land filtering

  • Added ANC10 ancillary file to read in sea level pressure

  • Added YAPC parameters

  • Introduced interpolation and extrapolation routines for ocean tides and mean sea surface (MSS)

  • Updated the PODPPD_flag filter so that a processing option is available for every flag value

  • Implemented dynamic inverted barometer for processing; read/interpolate sea level pressure directly from ANC10

  • Added lineage information to the metadata

  • Updated the MSS variables description, added mentions of the source of the MSS, and clarified the use of the tide free system

In this section
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Overview

ATL07QL is the quick look version of ATL07. Once final ATL07 files are available, the corresponding ATL07QL files will be removed. ATL07 contains along-track heights for sea ice and open water leads (at varying length scales) relative to the WGS84 ellipsoid (ITRF2014 reference frame) after adjustment for geoidal and tidal variations and inverted barometer effects. Height statistics and apparent reflectance 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):
SEA ICE ELEVATION
Platform(s):
ICESat-2
Sensor(s):
ATLAS
Data Format(s):
HDF5
Temporal Coverage:
26 October 2023 to present
Temporal Resolution:
  • 91 day
Spatial Resolution:
  • Not Specified
Spatial Reference System(s):
WGS 84
EPSG:4326
Spatial Coverage:
N:
90
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

Data Access & Tools

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HTTPS File System

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Quickly download a few files using a web browser, or access data through a command-line utility such as WGET.
Programmatic Data Access Guide
Type:
service
Last updated:
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Data Access Tool

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Filter files before downloading based on date, spatial area, or file name. Choose from various download options, such as Python script. Export bounding boxes as a GeoJSON.
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Type: Web Application
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NASA Earthdata Search

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How to search, order, and customize data with NASA Earthdata Search
Type: Web Application

Customized Programmatic Data Access Service

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Programmatically request selected data products through our API. This tool is valuable for selecting just the parameters you need from big data sets. Apply spatial and temporal filters, subsetting, reformatting, and reprojection.
Programmatic Data Access Guide
Type:
service
Last updated:
View Metadata
Customization Capabilities:
data reformatting
spatial subsetting
temporal subsetting
variable subsetting
Output Formats:
HDF5
ASCII
HDF5
NETCDF-3
NETCDF-4
 

Customized Programmatic Data Access Service

Get Data
Customize
Programmatically request selected data products through our API. This tool is valuable for selecting just the parameters you need from big data sets. Apply spatial and temporal filters, subsetting, reformatting, and reprojection.
Programmatic Data Access Guide
Type:
service
Last updated:
View Metadata
Customization Capabilities:
data reformatting
spatial subsetting
temporal subsetting
variable subsetting
Output Formats:
HDF5
ASCII
HDF5
NETCDF-3
NETCDF-4
Shapefile
 

Bulk Programmatic Data Access Service

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Programmatically request selected data products through NSIDC's API. Bulk download using spatial and temporal filters, or incorporate data access commands into code/scripts as needed.
Programmatic Data Access Guide
Type:
service
Last updated:
View Metadata

HDFView

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Explore contents of HDF4 and HDF5 files, including file structure, metadata, and parameter values.
HDFView 3.X User's Guide
Type: Downloadable Software
Output Formats:
ASCII
HDF4
HDF5

ICESat-2 Hackweek Jupyter Notebook Tutorials

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Search & Discover
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Utilize the Jupyterbook for the latest Hackweek virtual event and learn about the ICESat-2 satellite, data products, data-access tools, and more. Access past hackwork tutorials from the ICESat-2 Hackweek Github Organization listed in the Quick Links.
Supported software languages:
Python
Type: Downloadable Software
View Metadata
Customization Capabilities:
spatial subsetting
temporal subsetting
variable subsetting
 

Panoply Data Viewer

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Visualize georeferenced arrays in NetCDF, HDF and GRIB formats. Plot data on global or regional maps, choosing from multiple map projections. Overlay continent outlines or masks.
Type: Downloadable Software
Output Formats:
ASCII
CSV
GIF
HDF-EOS2
HDF-EOS5
HDF4
HDF5
JPEG
KML
NETCDF-3
NETCDF-4
PNG
TIFF

Documentation

Help Articles

General Questions & FAQs

FAQs on ICESat-2 quick looks
Read this help article to learn about what ICESat-2 quick look data products are and how to find them.
Read More
What subsetting and reformatting services are available for ICESat-2 data?
This short article describes the customization services available for ICESat-2 data using Earthdata Search.
Read More
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