gov.noaa.nodc:0241206 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-05-16T15:47:53Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Contents of gridded Los Alamos National Laboratory (LANL) vertical total electron content (VTEC) data derived from GPS lightning detections - 2018 (NCEI Accession 0241206) 2021-10-04 publication 2021-09-16 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0241206 NCEI Archive Management System 0241206 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Jeffery D. Tippmann Los Alamos National Laboratory (LANL) jtippmann@lanl.gov https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information resourceProvider Los Alamos National Laboratory (LANL) https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information resourceProvider Erin Lay Los Alamos National Laboratory (LANL) elay@lanl.gov https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information principalInvestigator Jeffery D. Tippmann Los Alamos National Laboratory (LANL) jtippmann@lanl.gov https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information collaborator Lay, Erin H. Los Alamos National Laboratory https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information author Tippmann, Jeffery D. Los Alamos National Laboratory jtippmann@lanl.gov https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information author Wiens, Kyle C. Los Alamos National Laboratory https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information author Los Alamos National Laboratory (LANL) https://lanl.gov/ HTTPS Los Alamos National Laboratory (LANL) website Institution web page information contributor tableDigital These files contain data products derived from Los Alamos National Laboratory (LANL) broadband radio-frequency (RF) sensors on Global Positioning System (GPS) satellites that measure transient events in the very-high frequency (VHF, 30-300 MHz) range. As a RF signal from transient broadband lightning events travels through the ionosphere, it is dispersed, so lower frequencies arrive later in time than higher frequencies. This dispersion can be used to determine the slant total electron content (STEC, or the integrated electron density along the line of sight between the lightning location and the GPS satellite in medium Earth orbit (MEO)). A mapping factor is used to project the slant TEC (along the line of sight) to a vertical TEC (VTEC), which is the integrated electron density vertically above a given location. The VTEC measurements from lightning events are combined in latitude, longitude, and time bins, and the median VTEC in a given bin is provided in these data files. This binning creates a time and spatial averaged sparse global TEC product from lightning events that can be used to compare to other TEC measurement products such as from GPS ground-based receivers. This dataset is available to the public for a wide variety of uses including scientific research and analysis. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0241206 Preview graphic PNG 0241206 NCEI ACCESSION NUMBER 2021-09-13 publication GPS instrument NODC INSTRUMENT TYPES THESAURUS satellite data theme NODC OBSERVATION TYPES THESAURUS Los Alamos National Laboratory dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Los Alamos National Laboratory dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS satelliteObservation theme WMO_CategoryCode 2012-09-15 publication DOE/LANL > LOS ALAMOS NATIONAL LABORATORY, DEPARTMENT OF ENERGY dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian GPS Epoch Time Los Alamos National Laboratory (LANL) vertical total electron content (VTEC) theme Provider Keywords GPS RECEIVERS > GPS RECEIVERS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian T24AJN Send2NCEI Submission Package ID accessLevel: Public otherRestrictions Cite as: Lay, Erin H.; Tippmann, Jeffery D.; Wiens, Kyle C. (2021). Contents of gridded Los Alamos National Laboratory (LANL) vertical total electron content (VTEC) data derived from GPS lightning detections - 2018 (NCEI Accession 0241206). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0241206. Accessed [date]. 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. otherRestrictions 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. eng; USA utf8 environment oceans -180 180 -60 60 2018-01-01 2018-12-31 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. Contact NCEI for other distribution options and instructions. netCDF HDF5 PNG 128.46 https://www.ncei.noaa.gov/archive/accession/0241206 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/241206 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/241206 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0188/0241206/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0241206 v1.1 was published. 2021-10-04T21:06:06Z NCEI Accession 0241206 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0241206/1.1 HTTPS NCEI Accession 0241206 v1.1 published 2021-10-04T21:06:06Z download dataset Parameter or Variable: LANL VTEC (measured); Units: TECU; Observation Category: satellite; Sampling Instrument: GPS asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian GPS GPS Global Positioning System receiver satellite-based instrument used for geo-location, positioning and navigation