NIWA Climate database http://cliflo.niwa.co.nz/
GLIMS glacier database http://nsidc.org/glims/
World Glacier Service http://www.geo.unizh.ch/wgms/
An extensive collection of measurements, documents and photographs collected by Jane Forsyth and Graham Bishop as part of of glaciological research between 1974 – 1988.
Details are described here
Browning Range snow cover surveys
An enormous photographic collection of the seasonal and annual changes in snow cover for an alpine basin in the Browning Range collected by Mark Crompton from 1996 until 2008. The collection is held in the NIWA archives and is referenced in the NIWA Metadata catalogue: Browning Range snow extent photographic collection