Erratum

After publication, it was found in the text that the words ‘Figure 6’ and ‘Figure 7’ were printed in the reverse order in several places of the article by Sarkhel et al. (2015). The details are as follows:

Page 7, Right column, Last paragraph, Line 8: ‘Figure 6a’ should be read as ‘Figure 7a’

Page 9, Left column, Last paragraph, Line 11: ‘Figure 7’ should be read as ‘Figure 6’

Page 9, Right column, Last paragraph, Line 1: ‘Figure 6’ should be read as ‘Figure 7’

Page 10, Left column, Line 6: ‘Figure 6a’ should be read as ‘Figure 7a’

Page 10, Left column, Line 25: ‘Figure 6a’ should be read as ‘Figure 7a’

Page 10, Left column, Line 33: ‘Figure 6a’ should be read as ‘Figure 7a’

Page 10, Left column, Line 37: ‘Figure 6b’ should be read as ‘Figure 6’

Page 10, Right column, Line 15: ‘Figure 6a’ should be read as ‘Figure 7a’

Page 10, Right column, Line 19: ‘Figure 6b’ should be read as ‘Figure 7b’

Page 11, Left column, Section: Role of sporadic-E activity, Line 12: ‘Figure 6a’ should be read as ‘Figure 7a’