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Science Keywords > EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > GEOMAGNETIC INDICES

Preferred term

GEOMAGNETIC INDICES  

Definition

  • Magnetic activity indicies that describe variation in the geomagnetic field caused by irregular current systems.Typical geomagntic indices are: a, A, Ap, Dst, K, and Kp (en)

Broader concept

Narrower concepts

Change note

  • 2013-02-18 09:52:55.0 [tbs1979] Insert Concept add narrower relation (GEOMAGNETIC INDICES [ae35f430-6534-49de-8b4c-edfc1e98870a,62733] - AA INDEX [5fd5ccc2-5edb-4823-940d-03a290a5c5fc,82403]);
  • 2013-02-18 09:53:13.0 [tbs1979] Insert Concept add narrower relation (GEOMAGNETIC INDICES [ae35f430-6534-49de-8b4c-edfc1e98870a,62733] - AM INDEX [b3283844-d867-4c2f-9917-a72bc06fd9ef,82405]);
  • 2013-02-18 09:53:32.0 [tbs1979] Insert Concept add narrower relation (GEOMAGNETIC INDICES [ae35f430-6534-49de-8b4c-edfc1e98870a,62733] - KP INDEX [40386eea-beb0-4b83-906b-75c6bfa24b73,82407]);
  • 2013-02-18 09:53:55.0 [tbs1979] Insert Concept add narrower relation (GEOMAGNETIC INDICES [ae35f430-6534-49de-8b4c-edfc1e98870a,62733] - DST INDEX [cdb4b514-75c4-4a1f-a4ad-1855fbd396ab,82409]);
  • 2013-02-18 09:54:12.0 [tbs1979] Insert Concept add narrower relation (GEOMAGNETIC INDICES [ae35f430-6534-49de-8b4c-edfc1e98870a,62733] - AE INDEX [31f77d6b-72f7-45e6-93be-8ac5fd5dc373,82411]);
  • 2013-03-11 14:31:38.0 [tbs1979] update Definition (Magnetic activity indicies that describe variation in the geomagnetic field caused by irregular current systems.Typical geomagntic indices are: a, A, Ap, Dst, K, and Kp); update Definition (NOAA/NGDC Solar-Terrestrial Glossary);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/ae35f430-6534-49de-8b4c-edfc1e98870a

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