This study compares the designation of different solar wind flow regimes (transient, coronal hole, and streamer belt) according to two algorithms derived from observations by the Solar Wind Ion Composition Spectrometer, the Solar Wind Electron Proton Alpha Monitor, and the Magnetometer on the ACE spacecraft, with a similar regime determination performed on board the Genesis spacecraft. The comparison is made for the interval from late 2001 to early 2004 when Genesis was collecting solar wind ions for return to Earth. The agreement between hourly regime assignments from any pair of algorithms was less than two thirds, while the simultaneous agreement between all three algorithms was only 49%. When the results of the algorithms were compared to a catalog of interplanetary coronal mass ejection events, it was found that almost all the events in the catalog were confirmed by the spacecraft algorithms. On the other hand, many short transient events, lasting 1 to 13h, that were unanimously selected as transient like by the algorithms, were not included in the catalog.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/621988 |
| Date | 09 1900 |
| Creators | Neugebauer, Marcia, Reisenfeld, Daniel, Richardson, Ian G. |
| Contributors | Univ Arizona, Lunar & Planetary Lab, Lunar and Planetary Laboratory; University of Arizona; Tucson Arizona USA, Department of Physics and Astronomy; University of Montana; Missoula Montana USA, CRESST and Department of Astronomy; University of Maryland; College Park Maryland USA |
| Publisher | AMER GEOPHYSICAL UNION |
| Source Sets | University of Arizona |
| Language | English |
| Detected Language | English |
| Type | Article |
| Rights | ©2016. American Geophysical Union. All Rights Reserved. |
| Relation | http://doi.wiley.com/10.1002/2016JA023142 |
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