Expansion of cattail, Typha domingensis , is perhaps the most conspicuous indicator of long-term degradation of the Florida Everglades. The spread of cattail in the Everglades has been tracked at a landscape scale through photointerpretation of aerial and satellite photography (Rutchey and Vilchek 1994, Jensen et al. 1995, Rutchey and Vilchek 1999 and Rutchey et al. 2008) and has provided an im...

should be augmented with texture measures (St-Onge and The analysis of forest structure and species composition with Cavayas, 1995). Texture can be used in the classification or, high spatial resolution (5 1 m) multispeckal digital imagery alternatively, the process of per-pixel classification can be supis described in an experiment using spatial co-occurrence plemented or replaced with another...

The data available in the collaborative project OpenStreetMap (OSM) is in some locations so detailed and complete that it may provide useful data for Land Cover Map creation and validation. However, this degree of detail is not uniform along space. Therefore, one of the first requirements that needs to be assessed to determine if the creation and validation of Land Cover Maps using data availab...

Conventional methods used to detect slope instability and map geomorphologic processes, especially in mountain areas, can benefit from remote sensing analyses, e.g. optical and radar satellite data. We illustrate the contribution of Persistent Scatterer Interferometry (PSI) analyses and photo-interpretation for the updating of pre-existing landslide inventory maps in mountain areas, through the...

Quantifying tree canopy cover in a spatially explicit fashion is important for broad-scale monitoring of ecosystems and for management of natural resources. Researchers have developed empirical models of tree canopy cover to produce geospatial products. For subpixel models, percent tree canopy cover estimates (derived from fi ne-scale imagery) serve as the response variable. The explanatory var...