LrgpV1, Main, Exploration, bibRecord, 000996

Anomaly of the ionospheric electron density close to earthquakes: Case studies of Pu’er and Wenchuan earthquakes

Identifieur interne : 000996 ( Main/Exploration ); précédent : 000995; suivant : 000997

Anomaly of the ionospheric electron density close to earthquakes: Case studies of Pu’er and Wenchuan earthquakes

Auteurs : Yufei He [République populaire de Chine] ; Dongmei Yang [France] ; Jiadong Qian [France] ; Michel Parrot [France]

Source :

RBID : Hal:insu-01298126

Abstract

The electron density recorded onboard the DEMETER satellite was analyzed to search for possible anomalies before earthquakes both in space and time. To distinguish pre-earthquake anomalies from the other anomalies related to geomagnetic activity, data were filtered using the Kp index. The analysis is based on the comparison of data recorded closely to earthquakes in space and time and past data for the same area. In analyzing data around the time and location of the Pu'er and Wenchuan earthquakes, obvious anomalies in electron density were found close to the epicenters, and some remarkable disturbances were detected before the earthquakes occurred. The results were finally compared with those of previous works that used the same data but employed different analysis methods. Good agreement was found which suggests that these anomalies have a close relation to the earthquake preparation.

Url:

https://hal-insu.archives-ouvertes.fr/insu-01298126

DOI: 10.1007/s11589-011-0816-0

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Hal, to step Corpus: 000118
to stream Hal, to step Curation: 000118
to stream Hal, to step Checkpoint: 000850
to stream Main, to step Merge: 000A89
to stream Main, to step Curation: 000996

Le document en format XML

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<front><div type="abstract" xml:lang="en">The electron density recorded onboard the DEMETER satellite was analyzed to search for possible anomalies before earthquakes both in space and time. To distinguish pre-earthquake anomalies from the other anomalies related to geomagnetic activity, data were filtered using the Kp index. The analysis is based on the comparison of data recorded closely to earthquakes in space and time and past data for the same area. In analyzing data around the time and location of the Pu'er and Wenchuan earthquakes, obvious anomalies in electron density were found close to the epicenters, and some remarkable disturbances were detected before the earthquakes occurred. The results were finally compared with those of previous works that used the same data but employed different analysis methods. Good agreement was found which suggests that these anomalies have a close relation to the earthquake preparation.</div>
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   |clé=     Hal:insu-01298126
   |texte=   Anomaly of the ionospheric electron density close to earthquakes: Case studies of Pu’er and Wenchuan earthquakes
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Anomaly of the ionospheric electron density close to earthquakes: Case studies of Pu’er and Wenchuan earthquakes

Anomaly of the ionospheric electron density close to earthquakes: Case studies of Pu’er and Wenchuan earthquakes

Source :

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri