DA-30 - GIS&T and Landscape Ecology
Landscape ecology is a transdisciplinary science dedicated to the study of the interactions among landscape heterogeneity, humans, and natural system. Since its inception in the mid-20th Century, landscape ecology has been strongly intertwined with spatial technologies, from aerial photography to modern space-borne sensors. Satellite-based remote sensing is among the primary data sources for contemporary landscape ecology analysis, while geographic information systems provide tools to analyze the spatial configurations of satellite derived classifications, simulate landscapes and species distributions, quantify landscape change, and elucidate the reciprocal relationship between spatial patterns and ecological processes. Additionally, global navigation satellite systems, such as GPS, Galileo, and GLONASS, augment these datasets and may be used for data collection to aid landscape ecology research. Emerging geospatial technologies, such as unoccupied aerial systems and micro- and nanosatellites, also have a role to play in landscape ecology.
FC-21 - Resolution
Resolution in the spatial domain refers to the size of the smallest measurement unit observed or recorded for an object, such as pixels in a remote sensing image or line segments used to record a curve. Resolution, also called the measurement scale, is considered one of the four major dimensions of scale, along with the operational scale, observational scale, and cartographic scale. Like the broader concept of scale, resolution is a fundamental consideration in GIScience because it affects the reliability of a study and contributes to the uncertainties of the findings and conclusions. While resolution effects may never be eliminated, techniques such as fractals could be used to reveal the multi-resolution property of a phenomenon and help guide the selection of resolution level for a study.