Thank-you to Martin for forwarding these first two images which he copied from the Metservice.com website on the morning of March 1, 2014. Both images show the same aerosol trail, which appears to be about 300 kilometres in length at least, extending across the Pacific Ocean near the Bay of Plenty. Note the ladder-like rippling in the cloud above this trail in the first. According to meteorologist, Scott Stevens, 99% of these aerosol trails are used for weather engineering purposes.
Below: Image for March 1, 2014 at 10am from http://www.metservice.com/maps-radar/satellite/tasman-sea-nz-visible
Above: An image for March 1, 2014 from: http://www.metservice.com/maps-radar/satellite/tasman-sea-nz-infrared.
There appear to be traces of this aerosol still evident in the first of the two LANCE Rapid Response MODIS images for New Zealand for the day, taken by the satellite named “Terra,” (the later one being taken by “Aqua.”) Refer: http://rapidfire.sci.gsfc.nasa.gov/imagery/subsets/?subset=NewZealand.2014060.terra.250m.jpg.
According to information at: http://rapidfire.sci.gsfc.nasa.gov/imagery/subsets/?subset=NewZealand.2014060.terra.250m.met, the satellite images for this were taken in 5 minute swaths between 22:00 UTC and 23:45 UTC, which equates to 11am and 12.45pm NZT.