<_Note>Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness. 2.6.1 <_MasterURL>https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/thg_l2_mag_lrv_00000000_v01.json (from all.xml) spase://NASA/NumericalData/THEMIS/Ground/Leirvogur/Magnetometer/PT10S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Higher latitude chain (Lat 64.2, Long 338.3), Ground-based Vector Magnetic Field at Leirvogur, Iceland, 10 second resolution data. <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description thg_l2_mag_lrv <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source Ground based observatory, affiliated with Science Institute, University of Iceland. Data is preliminary 10 second resolution data. <_Description>Source: Master/CDFglobalAttributes/TEXT Leirvogur Magnetic Observatory, Science Institute, University of Iceland <_Acknowledgement>Source: Master/CDFglobalAttributes/Acknowledgement <_Rights> SPDX Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html https://spdx.org/licenses/ http://cygnus.rhi.hi.is/~halo/lrv.html Leirvogur Magnetic Observatory home page Network information can be found at the <_Note>Source: from all.xml/other_info/link https://themis.ssl.berkeley.edu/index.shtml THEMIS home page Further information about the Time History of Events and Macroscale Interactions During Substorms (THEMIS) mission can be found at the <_Note>Source: from all.xml/other_info/link https://themis.ssl.berkeley.edu/instrument_gmags.shtml THEMIS GMAG instrument information page Information about the Fluxgate Magnetometers (GMAGS) can be found at the <_Note>Source: from all.xml/other_info/link https://themis.ssl.berkeley.edu/data/themis/thg/l2/mag/lrv/ THEMIS ftp site Site-specific data is archived at the <_Note>Source: from all.xml/other_info/link Leirvogur Magnetic Observatory http://cygnus.raunvis.hi.is//~halo/lrv.html Leirvogur Magnetic Observatory mainpage <_source>https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json ftp site ftp://cygnus.raunvis.hi.is/ Data available through <_source>https://github.com/rweigel/cdawmeta-spase/blob/main/cdawmeta-spase/InformationURL.json https://doi.org/10.48322/9gpd-8a88 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2007-01-01T00:00:00Z 2026-03-23T00:00:00Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop <_ObservedRegion>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json <_ProcessingLevel>Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json spase://SMWG/Instrument/Ground/Leirvogur/Magnetometer MagneticField spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/themis/thg/l2/mag/lrv In CDF via HTTP from CDAWeb thg_l2_mag_lrv_%Y%m%d_%Q.cdf %Y THG_L2_MAG_LRV CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/themis/thg/l2/mag/lrv In CDF via HTTP from CDAWeb thg_l2_mag_lrv_%Y%m%d_%Q.cdf %Y THG_L2_MAG_LRV CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland CDAWeb Web Service https://cdaweb.gsfc.nasa.gov/WebServices/ Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made. THG_L2_MAG_LRV CDF CSV GIF NetCDF PNG PS PDF XML x_Script.IDL x_Script.Python Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=THG_L2_MAG_LRV THG_L2_MAG_LRV Web service user interface for this product. CDF GIF PDF Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/THG_L2_MAG_LRV/clientLibraryExample/ THG_L2_MAG_LRV Web service that generates a Python script to access this product. x_Script.IDL x_Script.Python spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/SSCWeb. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=THG_L2_MAG_LRV THG_L2_MAG_LRV Web Service to this product. HTML spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=THG_L2_MAG_LRV THG_L2_MAG_LRV Web Service to this product using the HAPI interface. CSV JSON Binary spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=THG_L2_MAG_LRV&return=script THG_L2_MAG_LRV Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API. x_Script.IDL x_Script.Javascript x_Script.MATLAB x_Script.Python x_Script.Autoplot x_Script.curl x_Script.wget spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Gunnlaugur Bjornsson at Science Institute, University of Iceland, Reykjavik, Iceland HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=THG_L2_MAG_LRV&format=gallery THG_L2_MAG_LRV Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG THEMIS Ground Based Observatory (from all.xml/observatory/description/@short) Leirvogur, Iceland (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Magnetospheric Science (from Master/CDFglobalAttributes/Discipline) Ionospheric Science (from Master/CDFglobalAttributes/Discipline) THG_L2 (from Master/CDFglobalAttributes/Source_name) THEMIS Ground Based Observatory (from Master/CDFglobalAttributes/Source_name) MAG (from Master/CDFglobalAttributes/Data_type) LRV (from all.xml/instrument/@ID) Earth.NearSurface.Ionosphere Earth.Surface Time thg_mag_lrv_epoch thg_mag_lrv_epoch <_Description>Zero corresponds to 0000-01-01T00.00.000. See https://spdf.gsfc.nasa.gov/pub/software/cdf/doc/cdf390/cdf390ug.pdf ms <_Note>This variable is in the source CDF file. Not all web services will provide access to this variable in this form (e.g., an ISO 8601 string may be used). If the source of the CDF file is a different file type, it may be have been represented in a different format. B in HEZ Components thg_mag_lrv Magnetic field variation B in HEZ vector components NaN 3 nT nT nT