Braided rivers are a common in Alaska, Canada, New Zealand’s South Island, and the Himalayas, which all contain young, rapidly eroding mountains. They are a unique environment inhabited by equally unique birds. They simply cannot contain a river in a straight line. In floods especially they carry sediment, and in places where the flow slows… Continue reading Braided River Bird Monitoring – how it works
In reply to a recent article (“Is our water quality testing of Lake Hawea proactive enough?”), the Guardians of Lake Hawea would like to reassure readers that the change in lake colour this summer is not due to an algal bloom. The change from clear to bright or milky blue is caused by an influx of… Continue reading In reply to a recent article (“Is our water quality testing of Lake Hawea proactive enough?”)
Anthony Coote, local Geo-scientist reports: Is our water quality testing of Lake Hawea proactive enough, and are any measured tolerances of deemed good quality appropriate, given climate change. If you thought that Lake Hawea hasn’t looked right for about a month now, you are not alone and probably not mistaken: pale blue green in colour… Continue reading Is our water quality testing of Lake Hawea proactive enough?
Trevor and Barbara Chinn, friends of mine who live by Lake Hawea, may have become very mindful of water quality by the proximity of many thousands of dairy cattle at nearby Hawea Flat. Trevor’s letter below should be read in the context of his lifetime’s work as an internationally acknowledged glaciologist… The South Island has… Continue reading Letter: Aquifer concern | Stuff.co.nz
We’ve just had many days of settled weather in Wanaka and in winter this equates to either an inversion cloud base hanging over the town [where the temperatures actually are higher as one ascends – proved by going up to a ski area], or the skies stay clear and we have wicked frosts… And it’s… Continue reading The nearby Cardrona Valley and a weather change