Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in China

The temporal and spatial distribution of SqH in China was analyzed based on geomagnetic digitized data from the geomagnetic observation network. It was found that; 1) there was obvious prenoon-postnoon asymmetry of SqH in summer and equinox; 2) in summer, equinox, and winter, the averaged foci of Sq...

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Main Authors: Jianjun Wang, Dongmei Yang, Suqing Suqing, Rong Zhu
Format: Article
Language:English
Published: Ubiquity Press 2011-07-01
Series:Data Science Journal
Subjects:
Online Access:http://datascience.codata.org/articles/120
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author Jianjun Wang
Dongmei Yang
Suqing Suqing
Rong Zhu
author_facet Jianjun Wang
Dongmei Yang
Suqing Suqing
Rong Zhu
author_sort Jianjun Wang
collection DOAJ
description The temporal and spatial distribution of SqH in China was analyzed based on geomagnetic digitized data from the geomagnetic observation network. It was found that; 1) there was obvious prenoon-postnoon asymmetry of SqH in summer and equinox; 2) in summer, equinox, and winter, the averaged foci of Sq were located at 27° N, 29° N, and 35° N, respectively. However, in a single quiet day, the Sq foci might reach a latitude north of 50° N and south of 19° N; 3). There were some inconsistencies in the behavior of the SqH distributions in two longitudinal chains, such as the reverse of SqH variations in the same latitudinal chain and the increase (decrease) of the daily ranges from east to west. All these demonstrated that there might be latitudinal migration of the Sq focus or changes in current intensity during the longitudinal migration of the Sq focus from east to west.
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spelling doaj.art-9e4fd7bece664542a773aa99fd6b32722022-12-22T02:03:38ZengUbiquity PressData Science Journal1683-14702011-07-011010.2481/dsj.IAGA-26120Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in ChinaJianjun Wang0Dongmei Yang1Suqing Suqing2Rong Zhu3Earthquake Administration of Gansu Province, Lanzhou 730000, ChinaInstitute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaInstitute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaInstitute of Geophysics, China Earthquake Administration, Beijing 100081, ChinaThe temporal and spatial distribution of SqH in China was analyzed based on geomagnetic digitized data from the geomagnetic observation network. It was found that; 1) there was obvious prenoon-postnoon asymmetry of SqH in summer and equinox; 2) in summer, equinox, and winter, the averaged foci of Sq were located at 27° N, 29° N, and 35° N, respectively. However, in a single quiet day, the Sq foci might reach a latitude north of 50° N and south of 19° N; 3). There were some inconsistencies in the behavior of the SqH distributions in two longitudinal chains, such as the reverse of SqH variations in the same latitudinal chain and the increase (decrease) of the daily ranges from east to west. All these demonstrated that there might be latitudinal migration of the Sq focus or changes in current intensity during the longitudinal migration of the Sq focus from east to west.http://datascience.codata.org/articles/120Longitudinal chainLatitudinal chainSqHSq focus
spellingShingle Jianjun Wang
Dongmei Yang
Suqing Suqing
Rong Zhu
Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in China
Data Science Journal
Longitudinal chain
Latitudinal chain
SqH
Sq focus
title Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in China
title_full Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in China
title_fullStr Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in China
title_full_unstemmed Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in China
title_short Research on the Distribution of Geomagnetic Daily Variation Along Some Station Chains in China
title_sort research on the distribution of geomagnetic daily variation along some station chains in china
topic Longitudinal chain
Latitudinal chain
SqH
Sq focus
url http://datascience.codata.org/articles/120
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