A new method to identify flux ropes in space plasmas
<p>Flux ropes are frequently observed in the space plasmas, such as solar wind, planetary magnetosphere and magnetosheath etc., and play an important role in the reconnection process and mass and flux transportation. One usually uses bipolar signature and strong core field to identify the f...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-10-01
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| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/36/1275/2018/angeo-36-1275-2018.pdf |
| Summary: | <p>Flux ropes are frequently observed in the space plasmas, such as
solar wind, planetary magnetosphere and magnetosheath etc., and play an
important role in the reconnection process and mass and flux transportation.
One usually uses bipolar signature and strong core field to identify the flux
ropes. We propose here one new method to identify flux ropes based on the
correlations between the variables of the data from in situ spacecraft
observations and the <q>target function to be correlated</q> (TFC) from the ideal
flux rope model. Through comparing the correlation coefficients of different
variables at different times and scales, and performing weighted-average
techniques, this method can derive the scales and locations of the flux ropes.
We compare it with other methods and also discuss the limitation of our
method.</p> |
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| ISSN: | 0992-7689 1432-0576 |