Fig. 3.


Download original image

Selecting features in coronagraph images can be troublesome and provide widely different results. (a) A LASCO/C3 image of a well-known CME observed on 27 February 2000 (image provided courtesy of NASA). Nine distinct features have been identified in the image and are labeled (i)–(ix), (b) the height-time plots for each of the nine features, and the speed of each determined from the least-squares linear fit applied through each, (c) a LASCO/C2 image of one of the well-known “Halloween” CMEs (image also available courtesy of NASA), with 20 distinct features selected.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.