1. https://terra-vocabulary.org/ncl
  2. FAIR-Incubator
  3. earthsciencevariables
  4. _c_be3f6e1e
experimental

Entrée : Dst index

URI: https://terra-vocabulary.org/ncl/FAIR-Incubator/earthsciencevariables/c_be3f6e1e

Name "Dst" came from "Disturbance storm-time". Dst (type of index: Equatorial index horizontal component disturbances; time resolution: 1-hour UT interval; unit: nT; availability: from 1957 onwards) is computed using 1-hour values from four low latitude observatories. Dst aims at monitoring the axis-symmetric magnetic signature of magnetosphere currents, including mainly the ring current, the tail currents and also the magnetopause Chapman-Ferraro current. At a given time, the Dst index is the average of variation over all longitudes; the reference level is set so that Dst is statistically zero on quiet days. An index of -50 or deeper indicates a storm-level disturbance, and an index of -200 or deeper is associated with middle-latitude auroras. Dst is determined by the World Data Center for Geomagnetism, Data Analysis Center for Geomagnetism and Space Magnetism, Kyoto University, Kyoto Japan. Dst time series is formally recognised and endorsed since 1969 by IAGA.

Métadonnées principales

est un Concept | observable property
modifié le 13 Nov 2023 10:22:13.206
soumis parViqui Agazzi
accepté le 29 Sep 2022 15:03:11.826

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date accepted 29 Sep 2022 15:03:11.826
date submitted 29 Sep 2022 14:56:15.991
definition
entity Dst index
source graph graph

item class Concept | observable property
label Dst index
modified 13 Nov 2023 10:22:13.206
notation c_be3f6e1e
register earthsciencevariables
status status experimental
submitter
account name victoria.agazzi@teledetection.fr
name Viqui Agazzi

type register item
version info 4
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Définition

broader Solid earth
definition Name "Dst" came from "Disturbance storm-time". Dst (type of index: Equatorial index horizontal component disturbances; time resolution: 1-hour UT interval; unit: nT; availability: from 1957 onwards) is computed using 1-hour values from four low latitude observatories. Dst aims at monitoring the axis-symmetric magnetic signature of magnetosphere currents, including mainly the ring current, the tail currents and also the magnetopause Chapman-Ferraro current. At a given time, the Dst index is the average of variation over all longitudes; the reference level is set so that Dst is statistically zero on quiet days. An index of -50 or deeper indicates a storm-level disturbance, and an index of -200 or deeper is associated with middle-latitude auroras. Dst is determined by the World Data Center for Geomagnetism, Data Analysis Center for Geomagnetism and Space Magnetism, Kyoto University, Kyoto Japan. Dst time series is formally recognised and endorsed since 1969 by IAGA.
exact match V0010400 | cdb4b514 75c4 4a1f a4ad 1855fbd396ab
label Dst index
pref label Dst index
type Concept | observable property