substormn.

Brit.

/ˈsʌbstɔːm/, U.S.

/ˈsəbˌstɔrm/

Origin: Formed within English, by derivation. Etymons: sub- prefix, storm n.

Etymology: < sub- prefix + storm n.

1. Meteorology. A minor or subsidiary storm. Now rare.In quot. 1875 figurative.

ΚΠ

1867 A. Buchan Handy Bk. Meteorol. xi. 175 These storms may thus be regarded as secondary storms or sub-storms within the area of the more general storm passing over Europe at the time.

1875 Harper's New Monthly Mag. Oct. 696 There arose a wild chorus of groaning, mingled with a sub-storm of hissing.

1892 I. P. Noyes Meteorology 11 They are termed ‘locals’, for the reason that they are little sub-storms taking place here and there quite a distance from..the centre of the ‘low’.

1996 Jrnl. N. Amer. Benthol. Soc. 15 24/1 This 6-d period was a sequence of three small storms spaced 6–24 hours apart, which could be treated as three separate sub-storms.

2. Atmospheric Physics. A localized disturbance of the earth's magnetic field in high latitudes, typically lasting a few hours and causing increased auroral activity and other upper atmospheric phenomena. Cf. geomagnetic storm n. at geomagnetic adj. Compounds.

ΘΚΠ

the world > the earth > weather and the atmosphere > weather > bad weather > [noun] > a disturbance of the elements > magnetic, in polar regions

substorm1961

1961 S.-I. Akasofu & S. Chapman in Jrnl. Geophysical Res. 66 1339/2 Each such event, which Birkeland..called a polar elementary storm, is here called a DP substorm.

1969 New Scientist 25 Sept. 669/3 These are the ‘substorms’ which manifest themselves as aurorae and associated magnetic disturbances.

1994 Q. Jrnl. Royal Astron. Soc. 35 481 A possible mechanism for the increase is the injection of plasma from the magnetotail into the auroral ionosphere during magnetospheric substorms.

2007 Guardian 15 Feb. 9/1 Most of the time, the northern lights make up a steady band stretching from east to west but every few hours the energy released by the magnetic field intensifies into a substorm.

This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).

单词	substorm
释义	substormn. Brit. /ˈsʌbstɔːm/, U.S. /ˈsəbˌstɔrm/ Origin: Formed within English, by derivation. Etymons: sub- prefix, storm n. Etymology: < sub- prefix + storm n. 1. Meteorology. A minor or subsidiary storm. Now rare.In quot. 1875 figurative. ΚΠ 1867 A. Buchan Handy Bk. Meteorol. xi. 175 These storms may thus be regarded as secondary storms or sub-storms within the area of the more general storm passing over Europe at the time. 1875 Harper's New Monthly Mag. Oct. 696 There arose a wild chorus of groaning, mingled with a sub-storm of hissing. 1892 I. P. Noyes Meteorology 11 They are termed ‘locals’, for the reason that they are little sub-storms taking place here and there quite a distance from..the centre of the ‘low’. 1996 Jrnl. N. Amer. Benthol. Soc. 15 24/1 This 6-d period was a sequence of three small storms spaced 6–24 hours apart, which could be treated as three separate sub-storms. 2. Atmospheric Physics. A localized disturbance of the earth's magnetic field in high latitudes, typically lasting a few hours and causing increased auroral activity and other upper atmospheric phenomena. Cf. geomagnetic storm n. at geomagnetic adj. Compounds. ΘΚΠ the world > the earth > weather and the atmosphere > weather > bad weather > [noun] > a disturbance of the elements > magnetic, in polar regions substorm1961 1961 S.-I. Akasofu & S. Chapman in Jrnl. Geophysical Res. 66 1339/2 Each such event, which Birkeland..called a polar elementary storm, is here called a DP substorm. 1969 New Scientist 25 Sept. 669/3 These are the ‘substorms’ which manifest themselves as aurorae and associated magnetic disturbances. 1994 Q. Jrnl. Royal Astron. Soc. 35 481 A possible mechanism for the increase is the injection of plasma from the magnetotail into the auroral ionosphere during magnetospheric substorms. 2007 Guardian 15 Feb. 9/1 Most of the time, the northern lights make up a steady band stretching from east to west but every few hours the energy released by the magnetic field intensifies into a substorm. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1867
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