2026-04-08T16:14:14Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/ATL07QL.0072026-04-07T16:30:03Zcumulusnasa_nsidc_daac
ATL07QL.007ATLAS/ICESat-2 L3A Sea Ice Height Quick LookKwok, R., Petty, A. A., Cunningham, G., Markus, T., Hancock, D., Ivanoff, A., Wimert, J., Bagnardi, M., Kurtz, N. & the ICESat-2 Science TeamATLAS/ICESat-2 L3A Sea Ice Height Quick Look2025-06-17Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center7false10.5067/ATLAS/ATL07QL.007https://nsidc.org/sites/default/files/documents/user-guide/atl07ql-v007-userguide.pdfATL07QLTechnical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCECRYOSPHERESEA ICESEA ICE ELEVATION Climatology/Meteorology/Atmosphereicesat2-projecticesat2-quick-lookATLASAdvanced Topographic Laser Altimeter SystemICESat-2Ice, Cloud, and land Elevation Satellite-22025-06-08active-8888-180180GEOGRAPHIC REGIONNORTHERN HEMISPHEREGEOGRAPHIC REGIONSOUTHERN HEMISPHEREVaries91 dayThese data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/data-use-and-copyright. For more information on the NASA ESDIS Data Use Guidance, see https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance.EnglishNASA/GSFC/SED/ESD/I2-SIPSNASA NSIDC DAACNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daacData Center ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-6199National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAHTTPSHDF5ATL07QL is the quick look version of ATL07 and is based on the same algorithms that generate the ATL07 final data products. Once final ATL07 files are available, the corresponding ATL07QL files are removed. ATL07 contains along-track sea surface height and sea ice height for segments of variable lengths for all beams as well as fixed 10-meter segments for strong beams. Heights are also computed using the DDA-Bifurcation algorithm for strong beams. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the ICESat-2 observatory.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/documents/user-guide/atl07ql-v007-userguide.pdfATLAS/ICESat-2 L3A Sea Ice Height Quick Look, Version 7 User GuideGET DATAhttps://search.earthdata.nasa.gov/search/granules?p=C3566183486-NSIDC_CPRDEarthdata SearchGET DATAhttps://nsidc.org/data/data-access-tool/ATL07QL/versions/7/Data Access ToolGET DATAhttps://cmr.earthdata.nasa.gov/virtual-directory/collections/C3566183486-NSIDC_CPRDHTTPSGET DATAhttps://earthaccess.readthedocs.io/en/stable/earthaccessCEOS IDN DIFVERSION 9.92025-06-172026-04-07NSIDCVersion SummaryAdded starting along-track distance of sea-ice segment to main data group. Average along-track distance remains on product; Introduced lognormal distributions to be used as alternate expected waveform table; Implemented the option to process sea ice heights at half-stepping, 10-meter segment lengths; Introduced DDA-Bifurcation algorithm, which provides independently computed heights along with the ATL07 heights and helps detect and measure potential melt ponds; Updated algorithm to apply Dynamic Atmosphere Correction (DAC) as a geophysical correction; Introduced new fine-tracker algorithm to make it modular and introduce custom data groups to help with data handling and writing.NSIDCMinor VersionNSIDCCurrent Version1NSIDCSpatial Reference SystemsEPSG:4326WGS 84NSIDCLevel of ServiceComprehensiveNSIDCFull Dataset CitationKwok, R., Petty, A. A., Cunningham, G., Markus, T., Hancock, D., Ivanoff, A., Wimert, J., Bagnardi, M., Kurtz, N. & the ICESat-2 Science Team. (2025). <i>ATLAS/ICESat-2 L3A Sea Ice Height Quick Look</i>. (ATL07QL, Version 7). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/ATLAS/ATL07QL.007">https://doi.org/10.5067/ATLAS/ATL07QL.007</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredfalseNSIDCRelated Servicesapplication/vnd.nasa.cmr.umm+jsonfalsebookerlmmt_service_52052S3107386427-NSIDC_CPRDNSIDC_CPRD3service2024-12-03T17:04:33.698Zhttps://cmr.earthdata.nasa.gov/virtual-directory/collections/NSIDC_CPRD_HTTPS_File_SystemNOT PROVIDED1HTTPS File SystemQuickly download a few files using a web browser, or access data through a command-line utility such as WGET.https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guide#anchor-download-to-a-local-computer-from-earthdata-cloudVIEW RELATED INFORMATIONNASA Earthdata Cloud Data Access GuidePublicationURLUSER SERVICESNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESSee https://github.com/nasa/Common-Metadata-Repository/releases for more information on the latest version.DEVELOPERMaintenance and Development, Earth Observing System Data and Information System, Earth Observing System,Goddard Space Flight Center, NASANASA/GSFC/EOS/EOSDIS/EMDORIGINATORPUBLISHERSERVICE PROVIDERNASA National Snow and Ice Data Center Distributed Active Archive CenterNASA NSIDC DAACNSIDC DAAC home pagehttps://nsidc.org/daacNASA Distributed Active Archive Center (DAAC) at NSIDC home page.https://cdn.earthdata.nasa.gov/umm/service/v1.4UMM-S1.4https://cmr.earthdata.nasa.gov/virtual-directory/collections/C3566183486-NSIDC_CPRDapplication/vnd.nasa.cmr.umm+jsonfalseamy.steikermmt_service_25004S2472217299-NSIDC_CPRDNSIDC_CPRD1service2022-09-20T22:05:06.185Zs3://nsidc-cumulus-prod-protected/NSIDC_CPRD_S3NOT PROVIDED1.0NASA Earthdata Cloud (AWS S3)Access data directly from the NASA Earthdata Cloud via Amazon Web Services Simple Storage Service (AWS S3). This access option is only available when working within the us-west-2 region and requires additional AWS S3 credentials.https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guideVIEW RELATED INFORMATIONNASA Earthdata Cloud Data Access GuidePublicationURLhttps://data.nsidc.earthdatacloud.nasa.gov/s3credentialsVIEW RELATED INFORMATIONAWS S3 CredentialsPublicationURLUSER SERVICESNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESThis is the most current release of this service. Last updated date is unknown.SERVICE PROVIDERNASA National Snow and Ice Data Center Distributed Active Archive CenterNASA NSIDC DAAChttps://cdn.earthdata.nasa.gov/umm/service/v1.4UMM-S1.4https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guideNSIDCRelated Toolsapplication/vnd.nasa.cmr.umm+jsonfalsembeigmmt_tool_50907TL3010466318-NSIDC_CPRDNSIDC_CPRD4tool2024-05-28T17:29:12.271Zhttps://zenodo.org/badge/latestdoi/399867529DOWNLOAD SOFTWAREhttps://earthaccess.readthedocs.io/en/latest/DistributionURLNSIDC_CPRD_EARTHACCESSDownloadable Tool0.9.0earthaccessearthaccess is a python library to search and access NASA Earth science data with just a few lines of code.https://github.com/nsidc/earthaccessVIEW RELATED INFORMATIONGitHub RepositoryPublicationURLDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESDATA SEARCHDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESPUBLISHERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgPUBLISHERNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daac/NASA NSIDC DAACPUBLISHERNational Snow and Ice Data Centerhttp://nsidc.orgNSIDCDEVELOPERAlaska Satellite Facilityhttps://www.asf.alaska.edu/ASFDEVELOPERInstitute for the Study of Earth, Oceans, and Space, University of New Hampshirehttp://www.eos.unh.edu/UNH/EOSDEVELOPERAtmospheric Science Data Center, Science Directorate, Langley Research Center, NASAhttps://asdc.larc.nasa.gov/NASA/LARC/SD/ASDCMIT License
Copyright (c) 2021 Luis Lopez
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.2024-02-29T00:00:00.000ZAs a condition of use, we request that you properly cite the earthaccess library to acknowledge the creators. Formal citations also make it easier for us to track the use and impact of our data and tools, and helps us report data distribution activity and tool usage metrics to funding agencies.
If you have used earthaccess in your research, please cite as:
Barrett, A., Battisto, C., Bourbeau, J., Fisher, M., Kaufman, D., Kennedy, J., Lopez, L., Lowndes, J., Scheick, J., & Steiker, A. (2024). earthaccess (Version 0.9.0) [Computer software]. https://doi.org/10.5281/zenodo.8365009
See https://github.com/nsidc/earthaccess/releases for more information on the latest version.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0Python3.8 or higherhttps://earthaccess.readthedocs.io/en/latest/application/vnd.nasa.cmr.umm+jsonfalsecrumlydmmt_tool_14311TL3914225088-NSIDC_CPRDNSIDC_CPRD1tool2025-12-15T19:28:44.840ZDOWNLOAD SOFTWAREhttps://www.hdfgroup.org/downloads/hdfview/DistributionURLNSIDC_CPRD_HDFViewDownloadable Tool1HDFViewExplore contents of HDF4 and HDF5 files, including file structure, metadata, and parameter values.https://portal.hdfgroup.org/display/HDFVIEW/HDFView+3.x+User%27s+GuideVIEW RELATED INFORMATIONHDFView 3.X User's GuidePublicationURLDATA VISUALIZATIONDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESSERVICE PROVIDERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDEVELOPERPUBLISHERHierarchical Data Format, The National Center for Supercomputing Applications, University of Illinois at Urbana-Champaignhttps://www.hdfgroup.org/UI-UC/NCSA/HDFThis is the most current release of this tool. Last updated date is unknown.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0HDF-EOS2HDF-EOS5HDF4HDF5NETCDF-3NETCDF-4ASCIIHDF4HDF5WindowsmacOSLinuxhttps://www.hdfgroup.org/downloads/hdfview/application/vnd.nasa.cmr.umm+jsonfalsecrumlydmmt_tool_14328TL3914219125-NSIDC_CPRDNSIDC_CPRD6tool2025-12-15T23:27:51.929ZDOWNLOAD SOFTWAREhttps://www.giss.nasa.gov/tools/panoply/DistributionURLNSIDC_CPRD_PanoplyDownloadable Tool1Panoply Data ViewerVisualize 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.
DATA VISUALIZATIONDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESSTATISTICAL APPLICATIONSDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESDATA ANALYSISDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESSERVICE PROVIDERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgAUTHORDEVELOPERPUBLISHERGoddard Institute for Space Studies, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASAhttps://www.giss.nasa.gov/NASA/GSFC/SED/ESD/GISSAUTHORDEVELOPERSchmunkDr. RobertEmailrobert.b.schmunk@nasa.govPlease send bug reports, feature requests, etc., to Dr. Robert Schmunk. Please note that requests for assistance opening a dataset or interpreting the gridding of the data within will probably require that you provide a copy of the dataset or instructions on where it might be downloaded.This is the most current release of this tool. Last updated date is unknown.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0HDF-EOS2HDF-EOS5HDF4HDF5NETCDF-3NETCDF-4ASCIICSVGIFHDF-EOS2HDF-EOS5HDF4HDF5JPEGKMLNETCDF-3NETCDF-4PNGTIFFWindowsmacOSLinuxhttps://www.giss.nasa.gov/tools/panoply/application/vnd.nasa.cmr.umm+jsonfalsecrumlydmmt_tool_12314TL4019511337-NSIDC_CPRDNSIDC_CPRD1tool2026-02-11T17:42:34.275ZGOTO WEB TOOLhttps://nsidc.org/data/data-access-tool/DistributionURLNSIDC_CPRD_Data_Access_ToolWeb User Interface3.1.0Data Access ToolFilter 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.https://nsidc.org/support/how/search-filter-and-order-nsidc-dataVIEW RELATED INFORMATIONHow to filter and order from a data set web pagePublicationURLhttps://nsidc.org/data/user-resources/help-center/how-to-use-earthdata-downloadVIEW RELATED INFORMATIONHow to use Earthdata DownloadPublicationURLDATA SEARCHDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESSERVICE PROVIDERNSIDC User ServicesEmailnsidc@nsidc.orgDEVELOPERPUBLISHERSERVICE PROVIDERNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daac/NASA NSIDC DAAC2025-04-16T00:00:00.000ZChromeFirefoxSafariSee https://github.com/nsidc/data-access-tool-ui/blob/main/CHANGELOG.md for more information on the latest version.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0https://nsidc.org/data/data-access-tool/ATL07QL/versions/7/application/vnd.nasa.cmr.umm+jsonfalsecrumlydmmt_tool_12821TL4019517520-NSIDC_CPRDNSIDC_CPRD1tool2026-02-11T17:45:02.724ZGOTO WEB TOOLhttps://search.earthdata.nasa.gov/searchDistributionURLNSIDC_CPRD_NASA_Earthdata_SearchWeb User Interface1NASA Earthdata SearchSearch and order data from all NASA DAACs using spatial and temporal filters in a map interface. Reformatting, reprojecting, and subsetting options are available for some data sets.https://nsidc.org/support/how/search-order-and-customize-nsidc-daac-data-nasa-earthdata-searchVIEW RELATED INFORMATIONHow to search, order, and customize data with NASA Earthdata SearchPublicationURLDATA VISUALIZATIONDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESDATA SEARCHDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESSERVICE PROVIDERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgSERVICE PROVIDEREarthdata Service DeskEmailsupport@earthdata.nasa.govAUTHORDEVELOPERORIGINATORPUBLISHERMaintenance and Development, Earth Observing System Data and Information System, Earth Observing System,Goddard Space Flight Center, NASAhttp://newsroom.gsfc.nasa.gov/NASA/GSFC/EOS/EOSDIS/EMDChromeFirefoxSafariThis is the most current release of this tool.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0https://search.earthdata.nasa.gov/search/granules?p=C3566183486-NSIDC_CPRD