Remote sensing of freshwater habitats for large rivers and lakes of the Waikato region using sub-pixel classification

摘要

The overall goal of this study was to evaluate the feasibility of multi-sensor and multi-spectral remote sensing data for mapping different freshwater habitat zones of large rivers and lakes of the Waikato region. The review of satellite sensors available in NZ for aquatic mapping has identified three data options, which have been purchased for a case study area (Tongariro river delta). These data options are Landsat-5 (30m resolution), ALOS (10m and 2.5m) and QuickBird-2 (2.4m and 0.6m). There is no perfect option available as each option is a compromise between spatial and spectral resolution and cost.