Remote sensing
The scale and complexity of large rivers present challenges for monitoring ecological condition. One option for broadscale monitoring is the use of remote sensing from satellite imagery as in Figs1 and 2 below. Analysis of these images can provide insights into water quality and the extent of potentially important habitats such as macrophytes and whitebait spawning areas.
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Figure 1. Subpixel fraction map of willow scrub and blackberry bordering the Tongariro River delta, near Lake Taupo, predicted from satellite imagery (image courtesy of Salman Ashraf).
Figure 2. Total suspended sediment (mg/L) in the Waikato River and Lakes Waikare, Whangape, Rotongaro and Waahi 28 August 2002, predicted from a satellite image (image courtesy of Mat Allan).
Current projects
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Remote sensing of vegetation and shorezone habitats in large river environments (Salman Ashraf – supervisor Lars Brabyn)
- Measuring water quality of lakes from satellite imagery(Mat Allan – supervisor David Hamilton) Back to top
