Geostationary Lightning Mapper (GLM) Reprocessed Level-0 Data

GLM Reprocessed Level-0 Data

browse graphicRendering of a GOES-R satellite.
Lockheed Martin has updated six years of GOES-16 and GOES-17 data from the Geostationary Lightning Mapper (GLM), enhancing the accessibility of this crucial information. Previously, the GLM Level-0 (L0) data stored in the Comprehensive Large Array-data Stewardship System (CLASS) at the National Centers for Environmental Information (NCEI) was in a format difficult for users to work with, limiting its potential benefits. To address this, NOAA's National Environmental Satellite, Data, and Information Service (NESDIS) plans to replace the existing L0 archive with this reprocessed data, now in the more user-friendly NetCDF/HDF5 format.

This collection consists of archived L0 data from the GLM aboard the Geostationary Operational Environmental Satellite-R (GOES-R) Series, covering both GOES-East and GOES-West satellites during their operational and post-launch test phases. The GOES-R Series, extending the GOES mission through 2035, enhances our geostationary satellite observation capabilities.

GOES-16, the first satellite of the GOES-R series, began operations as GOES-East on December 18, 2017. GOES-17 followed as GOES-West, starting on February 12, 2019. The reprocessed GLM L0 data spans from March 21, 2017, to September 6, 2022.

The GLM, equipped to detect near-infrared optical transients over the Western Hemisphere, provides data including science, housekeeping, engineering, and diagnostic telemetry, along with orbit and attitude information from the GOES spacecraft. Each data packet, identified by a unique Application Process Identifier (APID) in its header, contains valuable information for interpretation.

For detailed information on the L0 data, the GOES-R Series Product Definition and Users' Guide (PUG) offers comprehensive documentation, including instrument calibration and data reprocessing insights.

Originally, the GLM L0 data was formatted in netCDF-4 with CCSDS packets stored as byte arrays, rendering them unreadable by standard netCDF applications. These were archived as hourly tar files by satellite. The newly reprocessed L0 data, however, is organized into daily files, including both background images (in FITS format) and event data (in netCDF-4), packaged as *.tgz files for easier access and use.

By transitioning to a more accessible NetCDF/HDF5 file format, Lockheed Martin has significantly enhanced the utility of the GLM L0 archive, making it more beneficial for scientific and operational communities.
  • Cite as: GOES-R Series Program (2024): NOAA GOES-R Series Geostationary Lightning Mapper (GLM) Reprocessed Level 0 Data. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.25921/TBD.
  • NCEI DSI: 2090_01
  • gov.noaa.ncdc:C01709
Download Data
Distribution Formats
  • netCDF-4
    • File Specification: Tar file containing NetCDF-4/HDF5
  • FITS
    • File Specification: Tar file containing Flexible Image Transport System (FITS) files
Ordering InstructionsContact NCEI for other distribution options and instructions.
DistributorNOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Customer Engagement Branch
NOAA National Centers for Environmental Information
1-828-271-4800
ncei.orders@noaa.gov
Time Period2017-03-21 to 2022-09-06 (time interval: 1-day)
Spatial Bounding Box Coordinates
N: 56
S: -56
E: 21
W: 170
N: 56
S: -56
E: 21
W: -127
N: 56
S: -56
E: -84
W: 170
Spatial Coverage Map
General Documentation
Processing Documents
Associated Resources
Publication Dates
  • Distribution: 2024-03-22
Dataset Progress StatusPlanned - fixed date has been established upon or by which the data will be created or updated
Data Update Frequency As needed
Supplemental Information
For both GOES satellites, the northern edge ranges between 54-56 N (further north over North America). It's the same pattern in the southern hemisphere. GOES-West sees as far west as 162 E (170 E at the equator) and as far east as 77 W (84 W at the equator). GOES-East sees as far west as 134 W (127 W at the equator) and as far east as 15 W (21 W at the equator).
PurposeThe lightning research community is anticipated to utilize this data extensively. The present GLM Level 2 data are constrained due to a particular set of filters applied between Level 0 and Level 2, resulting in valuable lightning data present in Level 0 that is absent in the filtered Level 2 data. The accessibility of Level 0 data in an easily interpretable format will enable researchers to extract additional lightning information from the GLM dataset.
Use Limitations
  • These data are expected to be used by the lightning research community. The current GLM Level 2 data are handicapped by a specific set of filters that are employed between the L0 and L2 data, meaning there is useful lightning information in the L0 data that doesn't exist in the filtered L2 data. The easily readable reprocessed L0 data will allow researchers to extra additional lightning information from the GLM dataset.
Dataset Citation
  • Cite as: GOES-R Series Program (2024): NOAA GOES-R Series Geostationary Lightning Mapper (GLM) Reprocessed Level 0 Data. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.25921/TBD.
Cited Authors
  • GOES-R Series Program
Resource Providers
  • GOES-R Series Program
Publishers
  • National Centers for Environmental Information
Theme keywords
  • Earth Science > Spectral/Engineering > Infrared Wavelengths > Sensor Counts
  • Earth Science > Spectral/Engineering > Platform Characteristics > Attitude Characteristics
  • Earth Science > Spectral/Engineering > Platform Characteristics > Orbital Characteristics
  • Earth Science > Spectral/Engineering > Sensor Characteristics > Electrical Properties
  • Earth Science > Spectral/Engineering > Sensor Characteristics > Thermal Properties
Data Center keywords
  • DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/OSPO > Office of Satellite and Product Operations, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords
  • GOES-16 > Geostationary Operational Environmental Satellite 16
  • GOES-17 > Geostationary Operational Environmental Satellite 17
Instrument keywords
  • GLM > Geostationary Lightning Mapper
Place keywords
  • Geographic Region > Western Hemisphere
Project keywords
  • GOES > Geostationary Operational Environmental Satellites
Use Constraints
  • Cite as: GOES-R Series Program (2024): NOAA GOES-R Series Geostationary Lightning Mapper (GLM) Reprocessed Level 0 Data. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.25921/TBD.
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Lineage StatementThis dataset features archived reprocessed Level 0 data from the Geostationary Lightning Mapper (GLM) of the Geostationary Operational Environmental Satellite-R (GOES-R) Series. This includes data from both GOES-16 (East) and GOES-17 (West) satellites during their operational (OPS) and post-launch test (PLT) phases. The dates of the reprocessed GLM L0 data range between 2017-03-21 to 2022-09-06.
Processor
  • LM/ATC/LMSAL > Lockheed Martin Solar and Astrophysics Laboratory, Advanced Technology Center, Lockheed Martin
Processing Steps
  • Lockheed Martin has reprocessed the GLM L0 archive with a version that's available in a more accessible NetCDF/HDF5 file format.
    Rationale: Although the original GLM Level 0 data files use a netCDF-4 file format, the CCSDS packets within were stored as byte arrays. This setup made the data unreadable for standard netCDF reader applications. These Level 0 data files were grouped into hourly tar files (data bundles) by satellite for archiving purposes.
Processing Documents
Source Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Last Modified: 2024-03-12
For questions about the information on this page, please email: ncei.info@noaa.gov