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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhao, MingYu Wang, XiaoFan Zhang, HongQi |
| Copyright Year | 2014 |
| Abstract | We analyzed the correlation of the solar magnetograms and Dopplergrams from SOHO/MDI and SDO/HMI respectively. It is found that the full disk correlation coefficient of Dopplergrams is more than 0.80 between SOHO/MDI and SDO/HMI. The full disk correlation coefficient of magnetograms is about 0.73 and is more than 0.95 for active regions only. We also analyzed the distribution of the cross helicity (velocity-magnetic-field correlation) on the solar surface. It is found that the latitude distributions of the cross helicity based on SOHO/MDI data and SDO/HMI data have similar tendencies, and in the analysis of solar active regions the amplitude of the horizontal component of the mean cross helicity is about two times the line-of-sight one. |
| Starting Page | 589 |
| Ending Page | 596 |
| Page Count | 8 |
| File Format | |
| ISSN | 16747348 |
| Journal | Science in China Series G |
| Volume Number | 57 |
| Issue Number | 3 |
| e-ISSN | 18691927 |
| Language | English |
| Publisher | Science China Press |
| Publisher Date | 2014-01-27 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | cross helicity photosphere magnetic fields solar activity Physics Classical Continuum Physics Astronomy, Observations and Techniques |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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