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experimental

Entry: corner frequency

URI: https://terra-vocabulary.org/ncl/DataTerraRepositoryFairIncubator/motsClefs/c_e84ebd05

The frequency at which the curve representing the Fourier amplitude spectrum of a recorded seismic signal abruptly changes its slope and drops by -3 db from the spectral plateau. In earthquake source studies, a parameter characterizing the farfield body-wave displacement �source spectrum�, being related to fault size, rupture velocity, source duration and stress drop in the source

Core metadata

is a Concept | observable property
changed on 17 Nov 2023 08:31:48.714
submitted byHélène Bressan
accepted on 20 May 2022 09:42:08.409

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date accepted 20 May 2022 09:42:08.409
date submitted 20 May 2022 09:41:39.017
definition
entity corner frequency
source graph graph

description
en The frequency at which the curve representing the Fourier amplitude spectrum of a recorded seismic signal abruptly changes its slope and drops by -3 db from the spectral plateau. In earthquake source studies, a parameter characterizing the farfield body-wave displacement �source spectrum�, being related to fault size, rupture velocity, source duration and stress drop in the source
fr La fréquence de coupure est la fréquence (généralement 33 Hz) au-delà de laquelle les modes propres ne sont plus amplifiés par rapport aux mouvements sismiques du support.
item class Concept | observable property
label
en corner frequency
fr Fréquence de coupure
modified 17 Nov 2023 08:31:48.714
notation c_e84ebd05
register mots clefs
status status experimental
submitter
account name h.bressan@brgm.fr
name Hélène Bressan

type register item
version info 7
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Definition

description
en The frequency at which the curve representing the Fourier amplitude spectrum of a recorded seismic signal abruptly changes its slope and drops by -3 db from the spectral plateau. In earthquake source studies, a parameter characterizing the farfield body-wave displacement �source spectrum�, being related to fault size, rupture velocity, source duration and stress drop in the source
fr La fréquence de coupure est la fréquence (généralement 33 Hz) au-delà de laquelle les modes propres ne sont plus amplifiés par rapport aux mouvements sismiques du support.
exact match c 0bce151d
in scheme Vocabulaire des mots clefs
label
en corner frequency
fr Fréquence de coupure
pref label
en corner frequency
fr Fréquence de coupure
same as c 0bce151d
source epos
top concept of Vocabulaire des mots clefs
type Concept | observable property
was attributed to Pole FormaTerre