gov.noaa.ngdc.stp.geomag:G10118 eng; USA utf8 dataset Justin Mabie DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Space and Terrestrial Weather Specialist (303) 497-6135 (303) 497-6513 325 Broadway, Mail Code E/GC4 Boulder CO 80305-3328 USA Justin.Mabie@noaa.gov pointOfContact 2015-09-18 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Geomagnetic Observatory Annual Means Data 2006-01-01 publication NOAA National Centers for Environmental Information publisher DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator The NOAA National Centers for Environmental Information (formerly National Geophysical Data Center) / World Data Center, Boulder maintains an active database of worldwide geomagnetic observatory data. Historically, magnetic observatories were established to monitor the secular change (variation), of the Earth's magnetic field, and this remains one of their most important functions. This generally involves absolute measurements sufficient in number to monitor instrumental drift and to produce annual means. While the current global network of geomagnetic observatories involves over 70 countries operating more than 200 observatories, the historic database includes observations from more than 600 observatories since the early 1800s. The magnetic observatory data are crucial to the studies of secular change, investigations into the Earth's interior, navigation, communication, and to global modeling efforts. The Earth's magnetic field is described by seven parameters. These are declination (D), inclination (I), horizontal intensity (H), vertical intensity (Z), total intensity (F) and the north (X) and east (Y) components of the horizontal intensity. By convention, declination is considered positive when measured east of north, inclination and vertical intensity positive down, X positive north, and Y positive east. The magnetic field observed on Earth is constantly changing. To further the understanding of Earth magnetism and the Sun-Earth environment and to monitor the secular change (variation), of the Earth's magnetic field. underDevelopment Justin Mabie DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Space and Terrestrial Weather Specialist (303) 497-6135 (303) 497-6513 325 Broadway, Mail Code E/GC4 Boulder CO 80305-3328 USA Justin.Mabie@noaa.gov pointOfContact annually Earth Science > Solid Earth > Geomagnetism Earth Science > Solid Earth > Geomagnetism > Magnetic Declination Earth Science > Solid Earth > Geomagnetism > Magnetic Field Earth Science > Solid Earth > Geomagnetism > Magnetic Field Earth Science > Solid Earth > Geomagnetism > Magnetic Inclination Earth Science > Solid Earth > Geomagnetism > Magnetic Intensity Earth Science > Solid Earth > Geomagnetism > Reference Fields Earth Science > Sun-Earth Interactions > Solar Activity theme NASA/GCMD Earth Science Keywords DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian otherRestrictions Use Constraints: Please site the providers of the data when using these data. otherRestrictions Access Constraints: This data is in the public domain and freely accessible. eng; USA geoscientificInformation utilitiesCommunication -180.0 180.0 -89.0 89.0 1813-01-01 NCEI(NGDC) / WDC, Boulder compiles this global database with the cooperation and collaboration of geomagnetic observing organizations worldwide. Please recognize the specific data providers as shown in the station metadata when using this data. Declination (D) The angle made by the magnetic meridian and the true north meridian, considered positive east of north and negative west of north 180.0 -180.0 Decimal Degrees or Degrees and Decimal Minutes Decimal Degrees or Degrees and Decimal Minutes Inclination (I) The angle which the line of force at a point of observation makes with the horizontal plane, positive when directed downward 90.0 -90.0 Decimal Degrees or Degrees and Decimal Minutes Decimal Degrees or Degrees and Decimal Minutes Horizontal Intensity (H) The projection of the geomagnetic field vector on the horizontal plane, always positive 40000.0 0 nanotesla nanotesla Vertical Intensity (Z) The projection of the geomagnetic field vector on the vertical plane, positive when directed down 60000.0 -70000.0 nanotesla nanotesla Total Intensity (F) The scalar magnitude of the geomagnetic field vector, always positive 80000.0 25000.0 nanotesla nanotesla North Component (X) The projection of the horizontal component (H) in the true meridian 45000.0 -10000.0 nanotesla nanotesla East Component (Y) The projection of the horizontal component on the true east direction, positive when directed eastward 20000.0 -20000.0 nanotesla nanotesla true repository NOAA National Centers for Environmental Information 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. 2015-04-22T00:00:00 annually This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard (version FGDC-STD-012-2002) using the 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform. Translated from FGDC 2012-10-10T11:05:27.795-06:00 This record was automatically modified on 2015-09-18 to include references to NCEI where applicable. Justin Mabie DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Space and Terrestrial Weather Specialist (303) 497-6135 (303) 497-6513 325 Broadway, Mail Code E/GC4 Boulder CO 80305-3328 USA Justin.Mabie@noaa.gov pointOfContact Justin Mabie DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Space and Terrestrial Weather Specialist (303) 497-6135 (303) 497-6513 325 Broadway, Mail Code E/GC4 Boulder CO 80305-3328 USA Justin.Mabie@noaa.gov pointOfContact G10118