Waiology • Oct 23, 2014 •
By Cate Macinnis-Ng Future climate projections predict that some parts of New Zealand will become drier with droughts being more severe and frequent. This is particularly true for the north and eastern parts of the country. We know that soil moisture availability will decline due to reductions in rainfall and increased evaporative demand will lead to faster transfer of … Read More
Waiology • Jan 09, 2012 •
By Daniel Collins I remember in 1986 going to the Beverly-Begg Observatory, in Dunedin, to see Halley’s Comet. At the time, I was a young kid fascinated with astronomy. I had discovered a book on the topic the previous year while on holiday in Central Otago, and soon joined an astronomy club. Through the club, I built a basic … Read More
Waiology • Nov 21, 2011 •
By Daniel Collins On average, about 87% of the Earth’s evaporation takes place over the oceans. 9% of this water then makes it over the land and falls as precipitation, the rest falls back to the sea. But this is just an average. Over much of 2010, there was so much evaporation from the oceans that the global average … Read More