Revert "Modified some plot procedures."

This reverts commit 01cd86bba6dfda6c451de649414856a8077490d9.

Conflicts:
	iugonet/plot/get_data_asi_nipr.pro
	iugonet/plot/get_data_thmasi.pro
	iugonet/plot/overlay_map_asi_nipr.pro
	iugonet/plot/overlay_map_thmasi.pro
	iugonet/plot/plot_map_asi_nipr.pro
Revert "Revert "Modified some plot procedures.""

This reverts commit 2be9637c6ad45de07466b60ea422aa946496ad7b.
Revert "Modified the load procedures of radisonde data"

This reverts commit e04dd3f5119351a469a967706bcbfcd1ea903cfa.