Da. Biesecker et al., Synoptic Sun during the first Whole Sun Month Campaign: August 10 to September 8, 1996, J GEO R-S P, 104(A5), 1999, pp. 9679-9689
A large number of synoptic maps from a variety of instruments are used to s
how the general morphology of the Sun at the time of the First Whole Sun Mo
nth Campaign. The campaign was conducted from August 10 to September 8, 199
6. The synoptic maps cover the period from Carrington rotation 1912/253 deg
rees to Carrington rotation 1913/45 degrees. The synoptic maps encompass bo
th on-disk data and limb data from several heights in the solar atmosphere.
The maps are used to illustrate which wavelengths and data sets show parti
cular features, such as active regions and coronal holes. Of particular int
erest is the equatorial coronal hole known as the "elephant's trunk," which
is clearly evident in the synoptic maps of on-disk data. The elephant's tr
unk is similar in appearance to the Shylab-era, "Boot of Italy," equatorial
coronal hole. The general appearance of the limb maps is explained as well
. The limb maps also show evidence for equatorial coronal holes.